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Lechler, Armin

Armin Lechler

Dr.-Ing.

Deputy Director
Managing Chief Engineer
Institute for Control Engineering of Machine Tools and Manufacturing Units

Contact

+49 711 685 82462
+4971168582808
Email
Business card (VCF)

Seidenstr. 36
70174 Stuttgart
Deutschland
Room: 5.011

Subject

Steuerungs- und Antriebstechnik
Beschreibungssprachen und Informationsmodelle
Konzeption und Entwicklung mechatronischer Module für wandelbare Bearbeitungssysteme und Untersuchung deren Auswirkungen auf die Gestaltung von Fertigungseinrichtungen
Cloud-basierte Steuerungstechnik
Steuerungs- und Kommunikationsarchitekturen
Simulationsmethoden in der Automatisierungstechnik
Regelungstechnik für Maschinen und Anlagen
Konzeption einer funktional einheitlichen Anwenderschnittstelle für Ethernet-basierte Bussysteme
Konzeption, Entwicklung und Implementierung von Konformitätstests für sercos III und CIP Safety on sercos
Sichere Mensch-Maschine-Interaktion

Publications

Publications:

2023
1. Leipe, Valentin ; Hinze, Christoph ; Lechler, Armin ; Verl, Alexander: Model predictive control for compliant feed drives with offset-free tracking behavior. In: Production Engineering, Production Engineering. (2023)
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  @article{Leipe2023, abstract = {Industrial machine tool feed drives are predominantly controlled by cascade control due to their low tuning complexity and inherent robustness. However, the cascaded structure requires the inner cascades to have higher dynamics than the outer cascades, which limits the achievable dynamic accuracy. Direct control approaches, which substitute the position and velocity cascade, offer the potential to utilize the unused potential. A promising approach is model predictive control (MPC), which optimizes the manipulated variable with a plant model along a prediction horizon. However, model uncertainties between the nominal model and the real plant lead to tracking errors. Therefore, this paper presents, a linear MPC (LMPC) and an adaptive MPC (AMPC) with an additional integral action to robustly compensate for model mismatches. Both controllers use a compliant model, are real-time capable with a sample rate of {\$}{\$}{\{}{\{}2{\}}{\backslash},{\backslash}textrm{\{}kHz{\}}{\}}{\$}{\$}and consider state and input space constraints. The AMPC accounts for position-varying stiffness and friction. The controllers are experimentally compared with classical P-PI cascaded control on a ball screw drive. They show a tracking error reduction of {\$}{\$}{\{}{\{}37{\}}{\{}{\backslash},{\backslash}{\%}{\}}{\}}{\$}{\$}(LMPC) and {\$}{\$}{\{}{\{}44{\}}{\{}{\backslash},{\backslash}{\%}{\}}{\}}{\$}{\$}(AMPC) during a high speed motion profile and an increase in bandwidth of {\$}{\$}{\{}{\{}180{\}}{\{}{\backslash},{\backslash}{\%}{\}}{\}}{\$}{\$}(LMPC) and {\$}{\$}{\{}{\{}184{\}}{\{}{\backslash},{\backslash}{\%}{\}}{\}}{\$}{\$}(AMPC), resulting in significantly improved dynamic accuracy.}, author = {Leipe, Valentin and Hinze, Christoph and Lechler, Armin and Verl, Alexander}, day = 22, doi = {10.1007/s11740-023-01206-6}, issn = {1863-7353}, journal = {Production Engineering}, month = {05}, title = {Model predictive control for compliant feed drives with offset-free tracking behavior}, url = {https://doi.org/10.1007/s11740-023-01206-6}, year = 2023 }
  Link
  https://doi.org/10.1007/s11740-023-01206-6
2. Neubauer, Michael ; Reiff, Colin ; Walker, Moritz ; Oechsle, Stefan ; Lechler, Armin ; Verl, Alexander: Cloud-based evaluation platform for software-defined manufacturing - Stuttgarter Maschinenfabrik as a realization example of an Industry 4.0 production. In: at - Automatisierungstechnik, at - Automatisierungstechnik. Bd. 71 (2023), Nr. 5, S. 351--363
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  @article{NeubauerReiffWalkerOechsleLechlerVerl+2023+351+363, abstract = {Software-Deﬁned Manufacturing (SDM) is a new paradigm for how to manufacture in the Industry 4.0 factory of the future. The approach requires a fundamental change in thinking and reinvention of central business models in production technology. This paper discusses the main challenges on the way to a software-deﬁned factory of the future and illustrates possible solutions. An exemplary future factory is presented, in which the validation of the solutions is carried out. For this purpose, cloud-based Computerized Numerical Control (CNC) is considered as use case. Experimental results demonstrate the proof of concept and show the potential for further applications.}, author = {Neubauer, Michael and Reiff, Colin and Walker, Moritz and Oechsle, Stefan and Lechler, Armin and Verl, Alexander}, doi = {doi:10.1515/auto-2022-0137}, journal = {at - Automatisierungstechnik}, number = 5, pages = {351--363}, title = {Cloud-based evaluation platform for software-defined manufacturing - Stuttgarter Maschinenfabrik as a realization example of an Industry 4.0 production}, url = {https://doi.org/10.1515/auto-2022-0137}, volume = 71, year = 2023 }
  Link
  https://doi.org/10.1515/auto-2022-0137
3. Heinemann, Tonja ; Lechler, Armin ; Riedel, Oliver: Profiles and Testing in OPC UA—Current State and Future Potentials in Industry 4.0. In: Lecture Notes in Production Engineering, Lecture Notes in Production Engineering. Cham : Springer International Publishing, 2023 — ISBN 9783031186400, S. 101--112
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  @inbook{heinemann2023profiles, address = {Cham}, author = {Heinemann, Tonja and Lechler, Armin and Riedel, Oliver}, booktitle = {Lecture Notes in Production Engineering}, doi = {10.1007/978-3-031-18641-7_11}, isbn = {9783031186400}, pages = {101--112}, publisher = {Springer International Publishing}, title = {Profiles and Testing in OPC UA—Current State and Future Potentials in Industry 4.0}, year = 2023 }
4. Bux, Tobias ; Riedel, Oliver ; Lechler, Armin: Blockchain Based Approach on Gathering Manufacturing Information Focused on Data Integrity. In: Lecture Notes in Production Engineering, Lecture Notes in Production Engineering. Cham : Springer International Publishing, 2023 — ISBN 9783031183171, S. 473--483
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  @inbook{bux2023blockchain, address = {Cham}, author = {Bux, Tobias and Riedel, Oliver and Lechler, Armin}, booktitle = {Lecture Notes in Production Engineering}, doi = {10.1007/978-3-031-18318-8_48}, isbn = {9783031183171}, pages = {473--483}, publisher = {Springer International Publishing}, title = {Blockchain Based Approach on Gathering Manufacturing Information Focused on Data Integrity}, year = 2023 }
2022
1. Mesmer, Patrick ; Riedel, Patrick ; Lechler, Armin ; Verl, Alexander: Investigation and Compensation of Hysteresis in Robot Joints with Cycloidal Drives. In: Schüppstuhl, T. ; Tracht, K. ; Fleischer, J. (Hrsg.) ; Schüppstuhl, T. ; Tracht, K. ; Fleischer, J. (Hrsg.): Annals of Scientific Society for Assembly, Handling and Industrial Robotics, Annals of Scientific Society for Assembly, Handling and Industrial Robotics. Berlin, Heidelberg : Springer Berlin Heidelberg, 2022, S. angenommen, noch nicht veröffentlicht
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  @inproceedings{mesmer2023investigation, address = {Berlin, Heidelberg}, author = {Mesmer, Patrick and Riedel, Patrick and Lechler, Armin and Verl, Alexander}, booktitle = {Annals of Scientific Society for Assembly, Handling and Industrial Robotics}, editor = {Sch{\"u}ppstuhl, Thorsten and Tracht, Kirsten and Fleischer, J{\"u}rgen}, pages = {angenommen, noch nicht veröffentlicht}, publisher = {Springer Berlin Heidelberg}, title = {Investigation and Compensation of Hysteresis in Robot Joints with Cycloidal Drives}, year = 2022 }
2. Zürn, Manuel ; Wnuk, Markus ; Lechler, Armin ; Verl, Alexander: Software Architecture For Deformable Linear Object Manipulation: A Shape Manipulation Case Study. In: 2022 IEEE/ACM 4th International Workshop on Robotics Software Engineering (RoSE), 2022 IEEE/ACM 4th International Workshop on Robotics Software Engineering (RoSE), 2022, S. 9–16
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  @inproceedings{9814824, author = {Zürn, Manuel and Wnuk, Markus and Lechler, Armin and Verl, Alexander}, booktitle = {2022 IEEE/ACM 4th International Workshop on Robotics Software Engineering (RoSE)}, doi = {10.1145/3526071.3527520}, pages = {9-16}, title = {Software Architecture For Deformable Linear Object Manipulation: A Shape Manipulation Case Study}, year = 2022 }
3. Heinemann, Tonja ; Gihr, Marwin ; Riedel, Oliver ; Lechler, Armin: Towards Data-driven Production: Analysis of Data Models Describing Machinery Jobs in OPC UA. In: Proceedings of the 19th International Conference on Informatics in Control, Automation and Robotics, Proceedings of the 19th International Conference on Informatics in Control, Automation and Robotics : SCITEPRESS - Science and Technology Publications, 2022
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  @inproceedings{Heinemann_2022, author = {Heinemann, Tonja and Gihr, Marwin and Riedel, Oliver and Lechler, Armin}, booktitle = {Proceedings of the 19th International Conference on Informatics in Control, Automation and Robotics}, doi = {10.5220/0011142900003271}, publisher = {{SCITEPRESS} - Science and Technology Publications}, title = {Towards Data-driven Production: Analysis of Data Models Describing Machinery Jobs in {OPC} {UA}}, url = {https://doi.org/10.5220%2F0011142900003271}, year = 2022 }
  Link
  https://doi.org/10.5220%2F0011142900003271
4. Jud, Oliver ; Lechler, Armin ; Verl, Alexander: Vorspannung adaptiv nachstellen. In: konstruktionspraxis, konstruktionspraxis., Vogel Communications Group GmbH & Co. KG (2022) (2022), Nr. 08, S. 32–33
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  @article{jud2022vorspannung, author = {Jud, Oliver and Lechler, Armin and Verl, Alexander}, journal = {konstruktionspraxis}, month = {08}, number = 08, pages = {32-33}, publisher = {Vogel Communications Group GmbH & Co. KG (2022)}, title = {Vorspannung adaptiv nachstellen}, url = {https://www.konstruktionspraxis.vogel.de/epaperarchiv/konstruktionspraxis_2022008/html5/index.html?pn=33}, year = 2022 }
  Link
  https://www.konstruktionspraxis.vogel.de/epaperarchiv/konstruktionspraxis_2022008/html5/index.html?pn=33
5. Schütz, Andreas ; Lechler, Armin ; Verl, Alexander: Modelling for Control of Vacuum Grippers in automatically reconfigurable Fixturing Systems for thin-walled Workpieces. In: Procedia CIRP, Procedia CIRP. Bd. 115 (2022), S. 226–231
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  @article{noauthororeditor, author = {Schütz, Andreas and Lechler, Armin and Verl, Alexander}, doi = {10.1016/j.procir.2022.10.078}, journal = {Procedia CIRP}, pages = {226-231}, title = {Modelling for Control of Vacuum Grippers in automatically reconfigurable Fixturing Systems for thin-walled Workpieces}, url = {https://www.sciencedirect.com/science/article/pii/S221282712201513X}, volume = 115, year = 2022 }
  Link
  https://www.sciencedirect.com/science/article/pii/S221282712201513X
6. Mesmer, Patrick ; Nagel, Patrick ; Lechler, Armin ; Verl, Alexander: Modeling and Identification of Hysteresis in Robot Joints with Cycloidal Drives. In: 2022 IEEE 17th International Conference on Advanced Motion Control (AMC), 2022 IEEE 17th International Conference on Advanced Motion Control (AMC), 2022, S. 358–363
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  @inproceedings{9729274, abstract = {Cycloidal drives (CDs) are precision transmissions that are often installed in the joints of industrial robots (IRs) with high payloads. It is well known that the hysteresis behavior of the CDs has a significant influence on the dynamic path accuracy of IRs. In contrast to harmonic drives (HDs), which are commonly used in lightweight robots, less literature has been published on the dynamic behavior of robot joints with CDs. Thus, this paper investigates the hysteresis behavior of robot joints with CDs. For the representation of the hysteresis behavior, a nonlinear auto-regressive with exogenous inputs (NARX) model is proposed and compared to a Bouc-Wen model. Both, the data-driven NARX and the Bouc-Wen model are investigated experimentally in terms of their capability for representing the hysteresis behavior of CDs. The quality of the models is validated using a laboratory setup that mimics the drivetrain of a robot joint of the high payload class.}, author = {Mesmer, Patrick and Nagel, Patrick and Lechler, Armin and Verl, Alexander}, booktitle = {2022 IEEE 17th International Conference on Advanced Motion Control (AMC)}, doi = {10.1109/AMC51637.2022.9729274}, issn = {1943-6580}, month = {02}, pages = {358-363}, title = {Modeling and Identification of Hysteresis in Robot Joints with Cycloidal Drives}, year = 2022 }
7. Jud, Oliver ; Helfesrieder, Nico ; Lechler, Armin ; Verl, Alexander: Vorspannungsnachstellung an Kugelgewindetrieben/Preload adjustment on ball screws – Methods for increasing service life due to automatic adjustment of preload force. In: wt Werkstattstechnik online, wt Werkstattstechnik online. Bd. 112, VDI Fachmedien GmbH and Co. KG (2022), Nr. 05, S. 282--287
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  @article{Jud_2022, author = {Jud, Oliver and Helfesrieder, Nico and Lechler, Armin and Verl, Alexander}, doi = {10.37544/1436-4980-2022-05-12}, journal = {wt Werkstattstechnik online}, month = {05}, number = 05, pages = {282--287}, publisher = {{VDI} Fachmedien {GmbH} and Co. {KG}}, title = {Vorspannungsnachstellung an Kugelgewindetrieben/Preload adjustment on ball screws {\textendash} Methods for increasing service life due to automatic adjustment of preload force}, url = {https://doi.org/10.37544%2F1436-4980-2022-05-12}, volume = 112, year = 2022 }
  Link
  https://doi.org/10.37544%2F1436-4980-2022-05-12
8. Neubauer, Michael ; Frick, Florian ; Ellwein, Carsten ; Lechler, Armin ; Verl, Alexander: Software-defined Manufacturing - Ein Paradigmenwechsel für die industrielle Produktion. In: wt Werkstatttechnik online, wt Werkstatttechnik online. Bd. 112 (2022), Nr. 6, S. 383–389
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  @article{neubauer2022softwaredefined, abstract = {Software-defined manufacturing (SDM) überträgt den Ansatz der Trennung von Anwendungen und unterlagerten Systemen, welcher ein entscheidendes Paradigma und Erfolgsfaktor für die Digitalisierung in vielen Branchen ist, auf die industrielle Produktion. Neben einer gesteigerten Integration von IT und OT können so die Produktionsprozesse einer gesamten Fabrik dynamisch durch Software anpasst werden. Ziel dieses Beitrags ist es, den SDM-Ansatz und die zur Umsetzung notwendigen Konzepte hinsichtlich technologischer Infrastruktur und Abstraktionsschicht vorzustellen. Anhand von zwei Use Cases werden die sich daraus ergebenden Potenziale aufgezeigt.}, author = {Neubauer, Michael and Frick, Florian and Ellwein, Carsten and Lechler, Armin and Verl, Alexander}, doi = {10.37544/1436–4980–2022–6–33}, journal = {wt Werkstatttechnik online}, month = {06}, number = 6, pages = {383-389}, title = {Software-defined Manufacturing - Ein Paradigmenwechsel für die industrielle Produktion}, volume = 112, year = 2022 }
9. Schmucker, Benedikt ; Trautwein, Felix ; Hartl, Roman ; Lechler, Armin ; Zaeh, Michael F. ; Verl, Alexander: Online Parameterization of a Milling Force Model using an Intelligent System Architecture and Bayesian Optimization. In: Procedia CIRP, Procedia CIRP. Bd. 107, Elsevier BV (2022), S. 1041--1046
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  @article{Schmucker_2022, author = {Schmucker, Benedikt and Trautwein, Felix and Hartl, Roman and Lechler, Armin and Zaeh, Michael F. and Verl, Alexander}, doi = {10.1016/j.procir.2022.05.105}, journal = {Procedia {CIRP}}, pages = {1041--1046}, publisher = {Elsevier {BV}}, title = {Online Parameterization of a Milling Force Model using an Intelligent System Architecture and Bayesian Optimization}, url = {https://doi.org/10.1016%2Fj.procir.2022.05.105}, volume = 107, year = 2022 }
  Link
  https://doi.org/10.1016%2Fj.procir.2022.05.105
10. Schulte, Alexander ; Lechler, Armin ; Verl, Alexander: Impact Actuator for Increased Dynamics. In: IECON 2022 – 48th Annual Conference of the IEEE Industrial Electronics Society, IECON 2022 – 48th Annual Conference of the IEEE Industrial Electronics Society, 2022, S. 1–6
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  @inproceedings{9968593, abstract = {This article investigates the use of impuls transfer during mechanical impacts for the acceleration of feed axes. For this purpose, additional masses are attached to linear axes and moved by an actuator. Very high accelerations can be obtained by impacts with a defined velocity on contact surfaces. Thus, almost abrupt velocity changes can be achieved on the main drives. To enable driving through corners with constant path velocity, the concept consists of a cross table with two axis equiped with an impact actuator each. Investigations are carried out by using a reference contour and the results are compared with existing strategies for adjusting the corners.}, author = {Schulte, Alexander and Lechler, Armin and Verl, Alexander}, booktitle = {IECON 2022 – 48th Annual Conference of the IEEE Industrial Electronics Society}, doi = {10.1109/IECON49645.2022.9968593}, issn = {2577-1647}, month = {10}, pages = {1-6}, title = {Impact Actuator for Increased Dynamics}, year = 2022 }
11. Mesmer, Patrick ; Neubauer, Michael ; Lechler, Armin ; Verl, Alexander: Robust design of independent joint control of industrial robots with secondary encoders. In: Robotics and Computer-Integrated Manufacturing, Robotics and Computer-Integrated Manufacturing. Bd. 73, Elsevier BV (2022), S. 102232
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  @article{Mesmer_2022, author = {Mesmer, Patrick and Neubauer, Michael and Lechler, Armin and Verl, Alexander}, doi = {10.1016/j.rcim.2021.102232}, journal = {Robotics and Computer-Integrated Manufacturing}, month = {02}, pages = 102232, publisher = {Elsevier {BV}}, title = {Robust design of independent joint control of industrial robots with secondary encoders}, url = {https://doi.org/10.1016%2Fj.rcim.2021.102232}, volume = 73, year = 2022 }
  Link
  https://doi.org/10.1016%2Fj.rcim.2021.102232
12. Dietrich, David ; Neubauer, Michael ; Lechler, Armin ; Verl, Alexander: Fehlerfreie Produktion durch flexibilisierte Prozesse/Error-free production through flexible manufacturing processes – Change of planning and error compensation in software-defined manufacturing. In: wt Werkstattstechnik online, wt Werkstattstechnik online. Bd. 112, VDI Fachmedien GmbH and Co. KG (2022), Nr. 05, S. 276--281
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  @article{Dietrich_2022, author = {Dietrich, David and Neubauer, Michael and Lechler, Armin and Verl, Alexander}, doi = {10.37544/1436-4980-2022-05-6}, journal = {wt Werkstattstechnik online}, number = 05, pages = {276--281}, publisher = {VDI Fachmedien GmbH and Co. KG}, title = {Fehlerfreie Produktion durch flexibilisierte Prozesse/Error-free production through flexible manufacturing processes {\textendash} Change of planning and error compensation in software-defined manufacturing}, url = {https://doi.org/10.37544%2F1436-4980-2022-05-6}, volume = 112, year = 2022 }
  Link
  https://doi.org/10.37544%2F1436-4980-2022-05-6
13. Mesmer, Patrick ; Lechler, Armin ; Verl, Alexander: Genauigkeit von Robotern steigern. In: INDUSTRIAL Production, INDUSTRIAL Production. Bd. 11/2022 (2022), S. 46–47
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  @article{mesmer2022genauigkeit, author = {Mesmer, Patrick and Lechler, Armin and Verl, Alexander}, journal = {INDUSTRIAL Production}, pages = {46-47}, title = {Genauigkeit von Robotern steigern}, volume = {11/2022}, year = 2022 }
14. Heinemann, Tonja ; Friedl, Sebastian ; Lechler, Armin: OPC-UA-Domänenmodelle heute und morgen. In: WT Werkstattstechnik online, WT Werkstattstechnik online. VDI-Platz 1, D-40468 Düsseldorf : VDI Fachmedien GmbH & Co. KG, 2022, S. 320–325
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  @incollection{heinemann2022opc, address = {VDI-Platz 1, D-40468 Düsseldorf}, author = {Heinemann, Tonja and Friedl, Sebastian and Lechler, Armin}, booktitle = {WT Werkstattstechnik online}, number = {Ausgabe 5-2022}, pages = {320-325}, publisher = {VDI Fachmedien GmbH & Co. KG}, title = {OPC-UA-Domänenmodelle heute und morgen}, year = 2022 }
15. Neher, Philipp ; Lechler, Armin ; Verl, Alexander: Experimental Evaluation of the Deterministic Wireless Communication System Industrial LTE. In: 2022 8th International Conference on Mechatronics and Robotics Engineering (ICMRE), 2022 8th International Conference on Mechatronics and Robotics Engineering (ICMRE) : Institute of Electrical and Electronics Engineers Inc., 2022 — ISBN 9781665483773, S. 157–162
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  @inproceedings{9734108, abstract = {The demand for highly customized products will be met in the future by smart and flexible factories. Future factories will rise to this challenge by employing stationary and mobile Cyber Physical Systems (CPS) which need to exchange various information. With mobile systems, this should be done wirelessly. This paper evaluates a previously proposed concept for a deterministic wireless communication system based on LTE. The concept combines LTE for data transmission with GPS for time synchronization and a time-based control scheme to enable a deterministic exchange of control information. To conduct experimental evaluation, an implementation of the concept is necessary. A prototypical implementation using off-the-shelf hardware and custom software is presented. Using two exemplary test cases, the concept and implementation are evaluated with regard to the overall system latency and the quality of the time synchronization of the internal clocks. The level of synchronicity of coordinated output values after transmitting the corresponding set-point values over the communication system is evaluated in another exemplary test case using a total of three communication end devices. With a measured maximum offset of 814 &#x00B5;s between the synchronized output of two receivers, the concept and implementation stand validated and deemed feasible.}, author = {Neher, Philipp and Lechler, Armin and Verl, Alexander}, booktitle = {2022 8th International Conference on Mechatronics and Robotics Engineering (ICMRE)}, doi = {10.1109/ICMRE54455.2022.9734108}, eventdate = {10.02.2022-12.02.2022}, isbn = {9781665483773}, language = {English}, month = {02}, pages = {157-162}, publisher = {Institute of Electrical and Electronics Engineers Inc.}, title = {Experimental Evaluation of the Deterministic Wireless Communication System Industrial LTE}, url = {http://icmre.org/}, venue = {Virtual, Munich, Germany}, year = 2022 }
  Link
  http://icmre.org/
16. Zürn, Manuel ; Wnuk, Markus ; Schneider, Anja ; Lechler, Armin ; Verl, Alexander: Localization and Tracking of Deformable Linear Objects with Self Organizing Maps. In: Proceedings of the 54th International Symposium on Robotics (ISR), Proceedings of the 54th International Symposium on Robotics (ISR), 2022, S. 17–25
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  @inproceedings{zurn2022localization, author = {Zürn, Manuel and Wnuk, Markus and Schneider, Anja and Lechler, Armin and Verl, Alexander}, booktitle = {Proceedings of the 54th International Symposium on Robotics (ISR)}, pages = {17-25}, title = {Localization and Tracking of Deformable Linear Objects with Self Organizing Maps}, year = 2022 }
17. Elser, Anja ; Lechler, Armin ; Verl, Alexander: Implementation of Surface Interpolators for Compound Surfaces without C2-continuity. In: Procedia CIRP, Procedia CIRP. Bd. 109 : Elsevier BV, 2022, S. 19--24
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  @inproceedings{Elser_2022, author = {Elser, Anja and Lechler, Armin and Verl, Alexander}, doi = {10.1016/j.procir.2022.05.208}, journal = {Procedia {CIRP}}, pages = {19--24}, publisher = {Elsevier {BV}}, title = {Implementation of Surface Interpolators for Compound Surfaces without C2-continuity}, url = {https://doi.org/10.1016%2Fj.procir.2022.05.208}, volume = 109, year = 2022 }
  Link
  https://doi.org/10.1016%2Fj.procir.2022.05.208
18. Mesmer, Patrick ; Hinze, Christoph ; Lechler, Armin ; Verl, Alexander: Gain-Scheduled Drive-based Damping Control for Industrial Robots. In: 2022 IEEE/ASME International Conference on Advanced Intelligent Mechatronics (AIM), 2022 IEEE/ASME International Conference on Advanced Intelligent Mechatronics (AIM), 2022, S. 1706–1713
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  @inproceedings{9863417, abstract = {The drivetrain flexibility of industrial robots limits their accuracy. To open up new areas of application for industrial robots, an increased dynamic path accuracy has to be obtained. Therefore, this paper addresses this issue by a gain-scheduled drive-based damping control for industrial robots with secondary encoders. For this purpose, a linear parameter-varying (LPV) model is derived as well as a system identification method is presented. Based on this, a gain-scheduled drive-based LPV damping control design is proposed, which guarantees stability and performance under variation of the manipulator configuration. The control performance of the approach is experimentally validated for the three base joints of a KUKA KR210-2 industrial robot. The approach realizes a trade-off between ease of implementation and control performance as well as robustness.}, author = {Mesmer, Patrick and Hinze, Christoph and Lechler, Armin and Verl, Alexander}, booktitle = {2022 IEEE/ASME International Conference on Advanced Intelligent Mechatronics (AIM)}, doi = {10.1109/AIM52237.2022.9863417}, issn = {2159-6255}, month = {07}, pages = {1706-1713}, title = {Gain-Scheduled Drive-based Damping Control for Industrial Robots}, year = 2022 }
19. Neher, Philipp ; Lechler, Armin ; Verl, Alexander: Identification and Classification of the Communication Data of Automated Guided Vehicles and Autonomous Mobile Robots. In: 2022 8th International Conference on Automation, Robotics and Applications (ICARA), 2022 8th International Conference on Automation, Robotics and Applications (ICARA) : Institute of Electrical and Electronics Engineers Inc., 2022 — ISBN 9781665483834, S. 68–75
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  @inproceedings{9738572, abstract = {Automated guided vehicles and autonomous mobile robots will be a key technology in the factories of the future. They supply the necessary flexibility for smart factories which produce individualized products with lot sizes down to one. With the increased number of tasks for automated guided vehicles, the requirements for their wireless communication systems become more demanding and current solutions won&#x2019;t be sufficient anymore. To efficiently develop, configure and setup communication systems, the knowledge about what type of information is communicated and what are the characteristics of the information communicated is necessary. This work identifies most relevant types of information in an automated guided vehicle system based on a set of use-cases. For each identified information type, an estimate for the communication properties (payload size, cycle-time and latency) is given. The information types are then classified into traffic types for further use to design a wireless communication system.}, author = {Neher, Philipp and Lechler, Armin and Verl, Alexander}, booktitle = {2022 8th International Conference on Automation, Robotics and Applications (ICARA)}, doi = {10.1109/ICARA55094.2022.9738572}, eventdate = {18.02.2022-20.02.2022}, isbn = {9781665483834}, issn = {2767-7745}, language = {en}, month = {02}, pages = {68-75}, publisher = {Institute of Electrical and Electronics Engineers Inc.}, title = {Identification and Classification of the Communication Data of Automated Guided Vehicles and Autonomous Mobile Robots}, url = {http://www.icara.us/2022.html}, venue = {Virtual, Online, Czech republic}, year = 2022 }
  Link
  http://www.icara.us/2022.html
20. Elser, Anja ; Teicht, Steffen ; Lechler, Armin: Modellbasierte numerische Steuerung: Entwicklung und Implementierung einer Steuerungsarchitektur für das Schwerkraftgießen. In: WT WERKSTATTSTECHNIK, WT WERKSTATTSTECHNIK. Bd. 110 : VDI Verlag, 2022, S. 6
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  @incollection{elser2022modellbasierte, author = {Elser, Anja and Teicht, Steffen and Lechler, Armin}, booktitle = {WT WERKSTATTSTECHNIK }, doi = {https://doi.org/10.37544/1436-4980-2020-05}, month = {05}, number = 5, pages = 6, publisher = {VDI Verlag}, title = {Modellbasierte numerische Steuerung: Entwicklung und Implementierung einer Steuerungsarchitektur für das Schwerkraftgießen}, volume = 110, year = 2022 }
21. Fischer, Marc ; Riedel, Oliver ; Lechler, Armin: Comprehensive Analysis of Software-Based Fault Tolerance with Arithmetic Coding for Performant Encoding of Integer Calculations. In: Trapp, M. ; Saglietti, F. ; Spisländer, M. ; Bitsch, F. (Hrsg.) ; Trapp, M. ; Saglietti, F. ; Spisländer, M. ; Bitsch, F. (Hrsg.): Computer Safety, Reliability, and Security, Computer Safety, Reliability, and Security. Cham : Springer International Publishing, 2022 — ISBN 978-3-031-14835-4, S. 144--157
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  BibTeX
  @inproceedings{fischer2022comprehensive, abstract = {Safety-critical systems are becoming more complex with use cases like autonomous driving or human-robot collaboration. Therefore, the performance impact of software-based fault-tolerance methods is challenging. Using software-based fault tolerance is an attractive approach because commercial off-the-shelf hardware can be used. One possibility to implement software-based fault tolerance are arithmetic codes, already used in safety-critical products. Recently, AN codes have received particular attention; however, they have a significant performance impact in complex safety applications that require 64-bit wide integer calculations. Therefore, we comprehensively analyze different arithmetic codes in this work to identify the best suitable 64-bit integer support. We identify the ones' complement as the best matching encoding strategy through new code metrics, fault simulations, and performance analysis. We validate our results by applying ones' complement coding to a sample algorithm. Performance measurements and fault injection simulation confirm our results.}, address = {Cham}, author = {Fischer, Marc and Riedel, Oliver and Lechler, Armin}, booktitle = {Computer Safety, Reliability, and Security}, doi = {10.1007/978-3-031-14835-4_10}, editor = {Trapp, Mario and Saglietti, Francesca and Spisl{\"a}nder, Marc and Bitsch, Friedemann}, isbn = {978-3-031-14835-4}, pages = {144--157}, publisher = {Springer International Publishing}, title = {Comprehensive Analysis of Software-Based Fault Tolerance with Arithmetic Coding for Performant Encoding of Integer Calculations}, url = {https://link.springer.com/chapter/10.1007/978-3-031-14835-4_10}, year = 2022 }
  Link
  https://link.springer.com/chapter/10.1007/978-3-031-14835-4_10
22. Mesmer, Patrick ; Lechler, Armin ; Verl, Alexander: Sensorlose Hysteresekompensation von Industrierobotern. In: GmbH, V. F. (Hrsg.) antriebstechnik, antriebstechnik. Bd. 08/2022 (2022), S. 40–42
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  BibTeX
  @article{mesmer2022sensorlose, author = {Mesmer, Patrick and Lechler, Armin and Verl, Alexander}, editor = {GmbH, Vereinigte Fachverlage}, journal = {antriebstechnik}, month = {08}, pages = {40-42}, title = {Sensorlose Hysteresekompensation von Industrierobotern}, volume = {08/2022}, year = 2022 }
2021
1. Fischer, Marc ; Riedel, Oliver ; Lechler, Armin ; Verl, Alexander: Arithmetic Coding for Floating-Point Numbers. In: 2021 IEEE Conference on Dependable and Secure Computing (DSC), 2021 IEEE Conference on Dependable and Secure Computing (DSC), 2021, S. 01–08
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  BibTeX
  @inproceedings{9346236, author = {Fischer, Marc and Riedel, Oliver and Lechler, Armin and Verl, Alexander}, booktitle = {2021 IEEE Conference on Dependable and Secure Computing (DSC)}, doi = {10.1109/DSC49826.2021.9346236}, pages = {01-08}, title = {Arithmetic Coding for Floating-Point Numbers}, url = {https://ieeexplore.ieee.org/document/9346236}, year = 2021 }
  Link
  https://ieeexplore.ieee.org/document/9346236
2. Reiff, Colin ; Bubeck, Wolfgang ; Krawczyk, Daniel ; Steeb, Maximilian ; Lechler, Armin ; Verl, Alexander: Learning Feedforward Control for Laser Powder Bed Fusion. In: Procedia CIRP, Procedia CIRP. Bd. 96 (2021), S. 127–132. — 8th CIRP Global Web Conference
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  @article{noauthororeditor, abstract = {Additive manufacturing is becoming increasingly important for industrial applications. Especially laser powder bed fusion processes play a decisive role. However, the technology often lacks in reliability and part quality due to complex process interactions and disturbing influences. To counteract these limitations, a flexible and high-dynamic control of relevant process parameters, taking into account the transient process conditions, is indispensable. Currently, the most process parameters are often kept constant, since the used control systems do not offer real-time capable interfaces for intervention. To enable the adjustment of parameters during the process, an open control architecture for galvanometer scanners and laser sources was developed. The architecture is based on an industrial control system in combination with a field-programmable gate array (FPGA) communicating via a real-time fieldbus. The novel control architecture is used to integrate a model-based feedforward control, adjusting the laser power, scan speed and scan strategy based on the current powder bed temperature calculated by a two-dimensional thermal model during run time. An integrated learning algorithm autonomously tunes the process parameters during the manufacturing process and determines the optimal combination of laser power, scan speed and powder bed temperature to achieve a homogeneous melt pool. On average, the standard deviation of the powder bed temperature along the scan path was reduced by 48% for the simulated test cases.}, author = {Reiff, Colin and Bubeck, Wolfgang and Krawczyk, Daniel and Steeb, Maximilian and Lechler, Armin and Verl, Alexander}, doi = {https://doi.org/10.1016/j.procir.2021.01.064}, journal = {Procedia CIRP}, note = {8th CIRP Global Web Conference}, pages = {127-132}, title = {Learning Feedforward Control for Laser Powder Bed Fusion}, url = {https://www.sciencedirect.com/science/article/pii/S2212827121000883}, volume = 96, year = 2021 }
  Link
  https://www.sciencedirect.com/science/article/pii/S2212827121000883
3. Brenner, Felix ; Lechler, Armin ; Verl, Alexander: Acceleration-based disturbance compensation for elastic rack-and-pinion drives. In: Production Engineering - Research and Development, Production Engineering - Research and Development. (2021)
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  @article{Brenner2021, abstract = {Rack-and-pinion drives are mainly used for large machine tools and are often operated with indirect position control. Due to the lack of state information on the output side, this results in reduced accuracy regarding the table position. In addition, the system can only react inadequately to disturbances outside the control loop, meaning that often insufficient results can be achieved in typical application scenarios such as milling. To meet the increasing dynamic and accuracy requirements of the modern manufacturing industry, this paper presents a highly dynamic acceleration-based disturbance compensation method. For this purpose, the table acceleration is estimated using a dynamical model of the drive train and compared to the signal from an additional acceleration sensor attached to the machine table. Based on the resulting difference, an additional compensation torque is provided, which suppresses the disturbance in counterphase. The approach is tested experimentally on an open control platform with industrial drive components and the behavior is investigated based on compliance frequency responses and externally applied milling forces. At the same time, a standardized parametrization methodology is developed and the robustness is evaluated by varying table masses. In summary, a considerable improvement of the dynamic disturbance behavior can be achieved compared to the conventional system without compensator.}, author = {Brenner, Felix and Lechler, Armin and Verl, Alexander}, day = 19, doi = {10.1007/s11740-021-01068-w}, issn = {1863-7353}, journal = {Production Engineering - Research and Development}, month = {07}, title = {Acceleration-based disturbance compensation for elastic rack-and-pinion drives}, url = {https://doi.org/10.1007/s11740-021-01068-w}, year = 2021 }
  Link
  https://doi.org/10.1007/s11740-021-01068-w
4. Schulte, Alexander ; Lechler, Armin ; Verl, Alexander: Konzeption eines zweiachsigen Impulsaktors. In: wt Werkstattstechnik online, wt Werkstattstechnik online. Bd. 111, VDI Fachmedien GmbH and Co. KG (2021), Nr. 05, S. 282–285
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  @article{Schulte_2021, author = {Schulte, Alexander and Lechler, Armin and Verl, Alexander}, doi = {10.37544/1436-4980-2021-05-16}, journal = {wt Werkstattstechnik online}, number = 05, pages = {282-285}, publisher = {{VDI} Fachmedien {GmbH} and Co. {KG}}, title = {Konzeption eines zweiachsigen Impulsaktors}, url = {https://doi.org/10.37544%2F1436-4980-2021-05-16}, volume = 111, year = 2021 }
  Link
  https://doi.org/10.37544%2F1436-4980-2021-05-16
5. Heinemann, Tonja ; Friedl, Sebastian ; Lechler, Armin: Interoperabilität für OPC UA Spezifikationen. In: WT Werkstattstechnik online, WT Werkstattstechnik online. VDI-Platz 1, D-40468 Düsseldorf : VDI Fachmedien GmbH & Co. KG, 2021, S. 324–329
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  @incollection{heinemann2021interoperabilitt, address = {VDI-Platz 1, D-40468 Düsseldorf}, author = {Heinemann, Tonja and Friedl, Sebastian and Lechler, Armin}, booktitle = {WT Werkstattstechnik online}, number = {Ausgabe 5-2021}, pages = {324-329}, publisher = {VDI Fachmedien GmbH & Co. KG}, title = {Interoperabilität für OPC UA Spezifikationen}, url = {https://www.ingenieur.de/fachmedien/wt-werkstattstechnik/ausgaben-wt-werkstattstechnik-online/inhalte-der-online-ausgabe-5-2021/}, year = 2021 }
  Link
  https://www.ingenieur.de/fachmedien/wt-werkstattstechnik/ausgaben-wt-werkstattstechnik-online/inhalte-der-online-ausgabe-5-2021/
6. Neubauer, Michael ; Mesmer, Patrick ; Lechler, Armin ; Verl, Alexander: Schwingungsdämpfung am Industrieroboter: Ein semiaktiver Ansatz zur Verbesserung des dynamischen Verhaltens. In: wt Werkstatttechnik online, wt Werkstatttechnik online. Bd. 111 (2021), Nr. 9, S. 422–427
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  @article{neubauer2021schwingungsdmpfung, author = {Neubauer, Michael and Mesmer, Patrick and Lechler, Armin and Verl, Alexander}, doi = {10.37544/1436-4980-2021-09-48}, journal = {wt Werkstatttechnik online}, month = {10}, number = 9, pages = {422-427}, title = {Schwingungsdämpfung am Industrieroboter: Ein semiaktiver Ansatz zur Verbesserung des dynamischen Verhaltens}, volume = 111, year = 2021 }
7. Wnuk, Markus ; Hinze, Christoph ; Zürn, Manuel ; Pan, Qizhen ; Lechler, Armin ; Verl, Alexander: Tracking Branched Deformable Linear Objects With Structure Preserved Registration by Branch-wise Probability Modification. In: 2021 IEEE 27th International Conference on Machatronics and Machine Vision in Practice, 2021 IEEE 27th International Conference on Machatronics and Machine Vision in Practice, 2021
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  @inproceedings{wnuk2021tracking, author = {Wnuk, Markus and Hinze, Christoph and Zürn, Manuel and Pan, Qizhen and Lechler, Armin and Verl, Alexander}, booktitle = {2021 IEEE 27th International Conference on Machatronics and Machine Vision in Practice}, month = {11}, title = {Tracking Branched Deformable Linear Objects With Structure Preserved Registration by Branch-wise Probability Modification}, year = 2021 }
8. Wnuk, Markus ; Zürn, Manuel ; Hinze, Christoph ; Lechler, Armin ; Verl, Alexander: Simulationsbasierter Beobachter für die Handhabungbiegeschlaffer Bauteile. In: antriebstechnik, antriebstechnik. (2021), Nr. 7, S. 38–42
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  BibTeX
  @article{wnuk2021simulationsbasierter, author = {Wnuk, Markus and Zürn, Manuel and Hinze, Christoph and Lechler, Armin and Verl, Alexander}, journal = {antriebstechnik}, month = {07}, number = 7, pages = {38-42}, title = {Simulationsbasierter Beobachter für die Handhabungbiegeschlaffer Bauteile}, url = {https://digital.antriebstechnik.de/antriebstechnik-7-2021/65722079/38}, year = 2021 }
  Link
  https://digital.antriebstechnik.de/antriebstechnik-7-2021/65722079/38
9. Helfesrieder, Nico ; Lechler, Armin ; Verl, Alexander: Strukturoptimierte Maschinenkomponenten mit hoher Dämpfung. In: Antriebstechnik, Antriebstechnik. Bd. 3/2021 (2021), Nr. 3, S. 40--43
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  @article{Helfesrieder.2021, author = {Helfesrieder, Nico and Lechler, Armin and Verl, Alexander}, issn = {0722-8546}, journal = {Antriebstechnik}, number = 3, pages = {40--43}, title = {Strukturoptimierte Maschinenkomponenten mit hoher Dämpfung}, url = {http://digital.antriebstechnik.de/antriebstechnik-3-2020/65318893/40}, volume = {3/2021}, year = 2021 }
  Link
  http://digital.antriebstechnik.de/antriebstechnik-3-2020/65318893/40
10. Mesmer, Patrick ; Lechler, Armin ; Verl, Alexander: Genauigkeitssteigerung von Industrierobotern - Methoden zur Hysteresekompensation. In: Robotik und Produktion, Robotik und Produktion. Bd. 09/2021 (2021), S. 26–27
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  @article{mesmer2021genauigkeitssteigerung, author = {Mesmer, Patrick and Lechler, Armin and Verl, Alexander}, journal = {Robotik und Produktion }, month = {09}, pages = {26-27}, title = {Genauigkeitssteigerung von Industrierobotern - Methoden zur Hysteresekompensation}, volume = {09/2021}, year = 2021 }
11. Schmucker, Benedikt ; Trautwein, Felix ; Semm, Thomas ; Lechler, Armin. ; Zaeh, Michael F. ; Verl, Alexander.: Implementation of an Intelligent System Architecture for Process Monitoring of Machine Tools. In: Procedia CIRP, Procedia CIRP. Bd. 96 (2021), S. 342–346. — 8th CIRP Global Web Conference – Flexible Mass Customisation (CIRPe 2020)
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  BibTeX
  @article{SCHMUCKER2021342, abstract = {State of the art machine tool controllers offer several Internet-of-Things (IoT) interfaces for machine data acquisition using industrial or edge computers. However, the available data exchange rates for these communication platforms are limited to a few hundred Hertz. As the data is not available in high frequency resolution, such a network communication is not suitable for monitoring and optimizing highly dynamic machining processes. This paper describes an efficient system architecture, which enables the acquisition of internal machine data as well as the high frequency sampling of external sensors. Based on this data, an Operational Modal Analysis (OMA) approach can be used to determine the tool tip dynamics during the machining process. Identification of tool tip frequency response requires the reconstruction of the excitation of the machine tool structure, i.e. the occurring machining forces. For this purpose, an approach relying on monitoring the commanded motor currents is applied.}, author = {Schmucker, Benedikt and Trautwein, Felix and Semm, Thomas and Lechler, Armin. and Zaeh, Michael F. and Verl, Alexander.}, doi = {https://doi.org/10.1016/j.procir.2021.01.097}, issn = {2212-8271}, journal = {Procedia CIRP}, note = {8th CIRP Global Web Conference – Flexible Mass Customisation (CIRPe 2020)}, pages = {342-346}, title = {Implementation of an Intelligent System Architecture for Process Monitoring of Machine Tools}, url = {https://www.sciencedirect.com/science/article/pii/S2212827121001268}, volume = 96, year = 2021 }
  Link
  https://www.sciencedirect.com/science/article/pii/S2212827121001268
12. Mesmer, Patrick ; Neubauer, Michael ; Lechler, Armin ; Verl, Alexander: Challenges of Linearization-based Control of Industrial Robots with Cycloidal Drives. In: 2021 IEEE International Conference on Mechatronics (ICM), 2021 IEEE International Conference on Mechatronics (ICM) : IEEE, 2021
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  @inproceedings{mesmer2021challenges, author = {Mesmer, Patrick and Neubauer, Michael and Lechler, Armin and Verl, Alexander}, booktitle = {2021 IEEE International Conference on Mechatronics (ICM)}, eventdate = {07.03.2021-09.03.2021}, eventtitle = {2021 IEEE International Conference on Mechatronics (ICM)}, language = {eng}, publisher = {IEEE}, title = {Challenges of Linearization-based Control of Industrial Robots with Cycloidal Drives}, venue = {Kashiwa, Japan}, year = 2021 }
13. Steinle, Lukas ; Lechler, Armin ; Neubauer, Michael ; Verl, Alexander: Experimental investigation into the implications of transmission errors for rack‑and‑pinion drives. In: Production Engineering Research and Development, Production Engineering Research and Development. (2021)
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  BibTeX
  @article{steinle2021experimental, abstract = {Rack-and-pinion drives are the preferred option in the machine tool sector when long ranges of motion and high loads are involved. However, their shortcomings particularly include defciencies in the achievable positioning and path accuracy. The backlash as one of the main issues is well described in the literature and numerous solutions to reduce its negative efects exist. In contrast, there is a lack of literature regarding the scientifc and systematic analysis of the transmission errors in rack-and-pinion drives. In this paper, the displacements originating in the drive train of a system with industrial components are measured under diferent operating conditions. The observed transmission errors are thoroughly analyzed in no-load operation and their sources are discussed. Subsequent investigations show signifcant load-dependent alterations of the transmission errors and direction-dependent characteristics, the causes of which are explained. It is shown, that transmission errors negatively afect the path accuracy of position controlled drives, which is amplifed by excitation of the machine structure in certain operating conditions. To address this issue, diferent error compensation concepts are presented.}, author = {Steinle, Lukas and Lechler, Armin and Neubauer, Michael and Verl, Alexander}, doi = {https://doi.org/10.1007/s11740-021-01090-y}, journal = { Production Engineering Research and Development}, month = {11}, title = {Experimental investigation into the implications of transmission errors for rack‑and‑pinion drives}, year = 2021 }
14. Friedl, Sebastian ; Heinemann, Tonja ; Lechler, Armin ; Riedel, Oliver: Implicit Templates for Conformance Units in OPC UA Companion Specifications. In: 2021 22nd IEEE International Conference on Industrial Technology (ICIT), 2021 22nd IEEE International Conference on Industrial Technology (ICIT). Bd. 1, 2021, S. 730–735
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  @inproceedings{9453582, abstract = {Due to its importance in the Industry 4.0 movement, the usage of OPC UA has increased in recent years. More and more vendor-independent and domain-specific models are developed as so-called Companion Specifications. OPC UA Profiles allow to subdivide functionality within the Companion Specifications, and thus offer flexibility to the standards. An OPC UA Profile is a set of individually testable entities called Conformance Units, which are also defined within the Companion Specification. In this work, similarities between Conformance Units defined by different working groups are analyzed and grouped in CU classes by the scope of the Conformance Units. For the most prevalent CU classes, textual templates are suggested, based on the typical formulations in existing Companion Specifications. These templates are intended to ease the development of Companion Specifications and the Conformance Units therein. The CU classes identified in this work suggest the templates can be used for more than two-thirds of the Conformance Units in a Companion Specification. The CU classes and templates are also a step towards automation in the generation of OPC UA Companion Specification Documents and test cases for the Conformance Units.}, author = {Friedl, Sebastian and Heinemann, Tonja and Lechler, Armin and Riedel, Oliver}, booktitle = {2021 22nd IEEE International Conference on Industrial Technology (ICIT)}, doi = {10.1109/ICIT46573.2021.9453582}, month = {03}, pages = {730-735}, title = {Implicit Templates for Conformance Units in OPC UA Companion Specifications}, url = {https://ieeexplore.ieee.org/document/9453582/}, volume = 1, year = 2021 }
  Link
  https://ieeexplore.ieee.org/document/9453582/
15. Helfesrieder, Nico ; Neubauer, Michael ; Lechler, Armin ; Verl, Alexander: Hybrid manufacturing of topology optimized machine tool parts through a layer laminated manufacturing method: Practical validation using the example of a bearing block. In: Production Engineering Research and Development, Production Engineering Research and Development. (2021)
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  @article{Helfesrieder.2021b, abstract = {Load-oriented lightweight structures are commonly designed based on topology optimization. For machine tool parts, they enable the reduction of moving masses and therefore increase the resource and energy efficiency of production systems. However, this usually results in complex part structures that are difficult or impossible to produce using conventional manufacturing methods. In this paper, a hybrid layer laminated manufacturing (LLM) method is proposed enabling manufacturing of topology-optimized machine tool parts. The method is referred to as hybrid, as the subtractive structuring of metal sheets is combined with the additive joining of the sheets by adhesive bonding. This enables enclosed inner cavities without support structures, which are used to approximate the optimal density distribution from a topology optimization via manufacturing. The proposed LLM method is validated on the basis of a bearing block of a ball screw feed drive. A experimental study in the time and frequency domain on a test rig confirms the principle suitability of the LLM method for the production of industrial applicable lightweight components.}, author = {Helfesrieder, Nico and Neubauer, Michael and Lechler, Armin and Verl, Alexander}, doi = {10.1007/s11740-021-01095-7}, file = {Helfesrieder, Neubauer et al. 2021 - Hybrid manufacturing of topology optimized:Attachments/Helfesrieder, Neubauer et al. 2021 - Hybrid manufacturing of topology optimized.pdf:application/pdf}, issn = {0944-6524}, journal = { Production Engineering Research and Development}, month = {12}, title = {Hybrid manufacturing of topology optimized machine tool parts through a layer laminated manufacturing method: Practical validation using the example of a bearing block}, url = {https://doi.org/10.1007/s11740-021-01095-7}, year = 2021 }
  Link
  https://doi.org/10.1007/s11740-021-01095-7
16. Fischer, Marc ; Riedel, Oliver ; Lechler, Armin: Arithmetic Coding for Floating-Points and Elementary Mathematical Functions. In: IEEE (Hrsg.) ; IEEE (Hrsg.): 2021 5th International Conference on System Reliability and Safety (ICSRS), 2021 5th International Conference on System Reliability and Safety (ICSRS), 2021, S. 270–275
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  BibTeX
  @inproceedings{9660663, author = {Fischer, Marc and Riedel, Oliver and Lechler, Armin}, booktitle = {2021 5th International Conference on System Reliability and Safety (ICSRS)}, doi = {10.1109/ICSRS53853.2021.9660663}, editor = {IEEE}, pages = {270-275}, title = {Arithmetic Coding for Floating-Points and Elementary Mathematical Functions}, url = {https://ieeexplore.ieee.org/document/9660663}, year = 2021 }
  Link
  https://ieeexplore.ieee.org/document/9660663
17. Neubauer, Michael ; Lechler, Armin ; Verl, Alexander: Genauigkeits- und Dynamiksteigerung bei Industrierobotern: Auf die Dämpfung kommt es an. In: Industrieanzeiger, Industrieanzeiger. Bd. 2021 (2021), Nr. 1, S. 38–39
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  @article{neubauer2021genauigkeits, abstract = {Industrieroboter müssen sehr schnell und höchst präzise sein. Hochdynamische Bewegungsabläufe regen jedoch unerwünschte Schwingungen an. Damit sind entweder Genauigkeitsabweichungen verbunden oder es muss langsamer gefahren werden. Ein Dämpfungsaktuator schafft Abhilfe.}, author = {Neubauer, Michael and Lechler, Armin and Verl, Alexander}, journal = {Industrieanzeiger}, month = {01}, number = 1, pages = {38-39}, title = {Genauigkeits- und Dynamiksteigerung bei Industrierobotern: Auf die Dämpfung kommt es an}, volume = 2021, year = 2021 }
18. Elser, Anja ; Lechler, Armin: Implementation of a Model Based Numerical Control for the Gravity Die Casting Process. In: 2021 22nd IEEE International Conference on Industrial Technology (ICIT), 2021 22nd IEEE International Conference on Industrial Technology (ICIT). Bd. 1, 2021, S. 1094–1099
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  BibTeX
  @inproceedings{9453492, abstract = {Automation of gravity die casting can be achieved by Numerical Controls (NC). However, NCs are not inherently capable to control every process, but rather have to be extended accordingly. In this paper, we show how a Numerical Control can be extended by a process model for the gravity die casting process. The extension enables either flow rates or machine axes positions to be passed to the NC. Then the NC interpolates those values and they are either fed directly to the machine axes or, when the casting process is running, processed further. We define some more functions for process safety. The implemented behavior is tested with dedicated tests and test software. First results confirm that the presented concept for model integration is valid.}, author = {Elser, Anja and Lechler, Armin}, booktitle = {2021 22nd IEEE International Conference on Industrial Technology (ICIT)}, doi = {10.1109/ICIT46573.2021.9453492}, month = {03}, pages = {1094-1099}, title = {Implementation of a Model Based Numerical Control for the Gravity Die Casting Process}, volume = 1, year = 2021 }
19. Zürn, Manuel ; Wnuk, Markus ; Lechler, Armin ; Steiler, Christian ; Paukner, Matthias ; Trommnau, Jerome ; Weiß, Bernd ; Minsch, Niklas ; u. a.: Leitungen automatisch im Kfz montieren. In: Industrial Production, Industrial Production. (2021), Nr. 7, S. 40–42
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  @article{zurn2021leitungen, author = {Zürn, Manuel and Wnuk, Markus and Lechler, Armin and Steiler, Christian and Paukner, Matthias and Trommnau, Jerome and Weiß, Bernd and Minsch, Niklas and Mittermeier, Manfred and Hessler, Uwe and Pollner, Roland}, journal = {Industrial Production}, number = 7, pages = {40-42}, title = {Leitungen automatisch im Kfz montieren}, url = {https://www.industrial-production.de/montagetechnik/leitungen-automatisch----im-kfz-montieren.htm}, year = 2021 }
  Link
  https://www.industrial-production.de/montagetechnik/leitungen-automatisch----im-kfz-montieren.htm
20. Brenner, Felix ; Lechler, Armin ; Verl, Alexander: Störgrößenkompensation für Vorschubantriebe. In: vdi fachmedien (Hrsg.) wt Werkstattstechnik online, wt Werkstattstechnik online. Bd. 111 (2021), Nr. 1, S. 82–87
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  @article{noauthororeditor, abstract = {Zahnstange-Ritzel-Antriebe werden überwiegend bei großen Werkzeugmaschinen eingesetzt und häufig mit indirekter Lageregelung betrieben. Hieraus resultiert eine geringe Positioniergenauigkeit und ein unzureichendes dynamisches Nachgiebigkeitsverhalten. Um den hohen Genauigkeitsanforderungen moderner Werkzeugmaschinen gerecht zu werden, wird in diesem Beitrag eine beschleunigungsbasierte Störgrößenkompensation vorgestellt. Experimentelle Ergebnisse belegen eine Verbesserung des Störverhaltens}, author = {Brenner, Felix and Lechler, Armin and Verl, Alexander}, editor = {vdi fachmedien}, journal = {wt Werkstattstechnik online}, number = 1, pages = {82-87}, title = {Störgrößenkompensation für Vorschubantriebe}, volume = 111, year = 2021 }
21. Zürn, Manuel ; Wnuk, Markus ; Hinze, Christoph ; Lechler, Armin ; Verl, Alexander ; Xu, Weiliang: Kinematic Trajectory Following Control For Constrained Deformable Linear Objects. In: 2021 IEEE 17th International Conference on Automation Science and Engineering (CASE), 2021 IEEE 17th International Conference on Automation Science and Engineering (CASE), 2021, S. 1701–1707
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  BibTeX
  @inproceedings{9551613, abstract = {deformable linear objects (DLOs) such as hoses, cables or wires are often a limiting factor in robotic manipulation. For an industrial robot control, their nonlinear dynamics combined with their large variations in material parameters make it challenging to handle. Therefore, DLOs are usually manipulated manually in the industry, offering a huge potential for automation. This paper contributes to the field of robotic handling of DLOs by presenting and evaluating a novel model based controller and observer concept which is based on a multibody simulation. The presented closed-loop framework of a kinematic trajectory following controller with an online point cloud processing observer is first evaluated separately in the simulation and then in an experiment, showing its potential for cable routing scenarios.}, author = {Zürn, Manuel and Wnuk, Markus and Hinze, Christoph and Lechler, Armin and Verl, Alexander and Xu, Weiliang}, booktitle = {2021 IEEE 17th International Conference on Automation Science and Engineering (CASE)}, doi = {10.1109/CASE49439.2021.9551613}, issn = {2161-8089}, month = {08}, pages = {1701-1707}, title = {Kinematic Trajectory Following Control For Constrained Deformable Linear Objects}, year = 2021 }
22. Steinle, Lukas ; Lechler, Armin ; Verl, Alexander: Antrieb im Gleichlauf. In: Industrial Production, Industrial Production. Bd. 8–9 (2021), S. 50–52
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  @article{steinle2021antrieb, author = {Steinle, Lukas and Lechler, Armin and Verl, Alexander}, journal = {Industrial Production}, pages = {50-52}, title = {Antrieb im Gleichlauf}, volume = {8-9}, year = 2021 }
23. von Arnim, Christian ; Lechler, Armin ; Riedel, Oliver: Operations for non-disruptive modification of real-time network schedules. In: 2021 22nd IEEE International Conference on Industrial Technology (ICIT), 2021 22nd IEEE International Conference on Industrial Technology (ICIT). Bd. 1, 2021 — ISBN 978-1-7281-5730-6, S. 1131–1137
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  @inproceedings{9453586, abstract = {New production architectures and the Time Sensitive Networking extensions of the Ethernet standard enable larger real-time networks with more participants than before. Due to the guaranteed response times of real-time applications, there are limitations in rescheduling. This paper presents operations which allow modification of the schedule of a time-division multiple access (TDMA) real-time network without affecting its proper functionality. For this purpose, both the communication and the involved real-time applications are considered. This allows the active schedule to be modified during the rescheduling. Therefore, failed rescheduling due to fragmentation is less likely.}, author = {von Arnim, Christian and Lechler, Armin and Riedel, Oliver}, booktitle = {2021 22nd IEEE International Conference on Industrial Technology (ICIT)}, doi = {10.1109/ICIT46573.2021.9453586}, isbn = {978-1-7281-5730-6}, month = {03}, pages = {1131-1137}, title = {Operations for non-disruptive modification of real-time network schedules}, url = {https://ieeexplore.ieee.org/document/9453586/}, volume = 1, year = 2021 }
  Link
  https://ieeexplore.ieee.org/document/9453586/
24. Neubauer, Michael ; Lechler, Armin: Software-defined Manufacturing für die Industrie. In: SPS-Magazin, SPS-Magazin. Bd. 2021 (2021), Nr. 12, S. 20
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  @article{neubauer2021softwaredefined, abstract = {Der entscheidende Erfolgsfaktor, um trotz hochvolatiler Märkte wirtschaftlich produzieren zu können, ist die Wandlungsfähigkeit von Produktionssystemen. Software-defined Manufacturing (SDM) ist ein revolutionärer, modellgetriebener Ansatz zur Erreichung dieses Ziels. Welches Potenzial sich dahinter verbirgt, soll ein aktuelles Forschungsprojekt am ISW aufzeigen. }, author = {Neubauer, Michael and Lechler, Armin}, journal = {SPS-Magazin}, month = {Dez}, number = 12, pages = 20, title = {Software-defined Manufacturing für die Industrie}, volume = 2021, year = 2021 }
2020
1. Christodoulopoulos, Konstantinos ; Lautenschlaeger, Wolfram ; Frick, Florian ; Benzaoui, Nihel ; Henke, Torben ; Gebhard, Ulrich ; Dembeck, Lars ; Lechler, Armin ; u. a.: Enabling the Scalability of Industrial Networks by Independent Scheduling Domains. In: Optical Fiber Communication Conference (OFC) 2020, Optical Fiber Communication Conference (OFC) 2020 : Optical Society of America, 2020, S. Th2A.24
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  @inproceedings{Christodoulopoulos:20, abstract = {We propose to extend the scalability of Time Sensitive industrial Networks, by partitioning them into time/scheduling domains and interconnect domain-devices through an optical backbone acting asynchronously to them. We show drastic scalability improvements and a proof of concept.}, author = {Christodoulopoulos, Konstantinos and Lautenschlaeger, Wolfram and Frick, Florian and Benzaoui, Nihel and Henke, Torben and Gebhard, Ulrich and Dembeck, Lars and Lechler, Armin and Pointurier, Yvan and Bigo, S\'{e}bastien}, booktitle = {Optical Fiber Communication Conference (OFC) 2020}, doi = {10.1364/OFC.2020.Th2A.24}, journal = {Optical Fiber Communication Conference (OFC) 2020}, pages = {Th2A.24}, publisher = {Optical Society of America}, title = {Enabling the Scalability of Industrial Networks by Independent Scheduling Domains}, url = {http://www.osapublishing.org/abstract.cfm?URI=OFC-2020-Th2A.24}, year = 2020 }
  Link
  http://www.osapublishing.org/abstract.cfm?URI=OFC-2020-Th2A.24
2. Hinze, Christoph ; Wnuk, Markus ; Zürn, Manuel ; Lechler, Armin ; Verl, Alexander: Daten-integrierte Simulation. In: inVision, inVision. (2020)
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  @article{hinze2020datenintegrierte, author = {Hinze, Christoph and Wnuk, Markus and Zürn, Manuel and Lechler, Armin and Verl, Alexander}, journal = {inVision}, title = {Daten-integrierte Simulation}, url = {https://invision-news.de/allgemein/daten-integrierte-simulation-2/}, year = 2020 }
  Link
  https://invision-news.de/allgemein/daten-integrierte-simulation-2/
3. Lechler, Armin ; Schmidt, Alexander ; VDI-Verlag (Hrsg.) ; VDI-Verlag (Hrsg.): iSrv – Intelligentes Servicesystem, Reihe 2. Bd. Fortschritt-Berichte VDI. Erste. : VDI-Verlag, 2020 — ISBN 978-3-18-370302-9
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  @book{lechler2020intelligentes, author = {Lechler, Armin and Schmidt, Alexander}, edition = {Erste}, editor = {VDI-Verlag}, isbn = {978-3-18-370302-9}, language = {deutsch}, number = 703, publisher = {VDI-Verlag}, series = {Reihe 2}, title = {iSrv – Intelligentes Servicesystem}, volume = {Fortschritt-Berichte VDI}, year = 2020 }
4. Hinze, Christoph ; Zürn, Manuel ; Wnuk, Markus ; Lechler, Armin ; Verl, Alexander: Nonlinear Trajectory Control for Deformable Linear Objects based on Physics Simulation. In: IECON 2020 The 46th Annual Conference of the IEEE Industrial Electronics Society, IECON 2020 The 46th Annual Conference of the IEEE Industrial Electronics Society, 2020, S. 310–316
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  @inproceedings{9254923, abstract = {The handling of deformable linear objects (DLOs), such as cables or hoses, with industrial robots is hardly industrially automated due to the underactuated material behavior. Increasing computing power and decreasing cost of processors over the last decades are now allowing the online computation of more complex handling processes. Within this paper, DLOs are approximated as a multibody chain with a finite number of degrees of freedom. Based on that model, a nonlinear, partially IO-linearizing controller is derived to control an underactuated end point on a trajectory when grasped by a robot arm at the other end. The controller is verified in simulation for high dynamics and shown to significantly reduce the tracking error. A practical evaluation finally shows the qualitative suitability of the multibody approximation and is used to validate the functionality of the controller in an open-loop experiment.}, author = {Hinze, Christoph and Zürn, Manuel and Wnuk, Markus and Lechler, Armin and Verl, Alexander}, booktitle = {IECON 2020 The 46th Annual Conference of the IEEE Industrial Electronics Society}, doi = {10.1109/IECON43393.2020.9254923}, issn = {2577-1647}, month = {10}, pages = {310-316}, title = {Nonlinear Trajectory Control for Deformable Linear Objects based on Physics Simulation}, url = {https://ieeexplore.ieee.org/document/9254923/}, year = 2020 }
  Link
  https://ieeexplore.ieee.org/document/9254923/
5. Wnuk, Markus ; Hinze, Christoph ; Zürn, Manuel ; Lechler, Armin ; Verl, Alexander: Roboterdemonstrator kombiniert Simulation und Bildverarbeitung. In: Robotik und Produktion, Robotik und Produktion. (2020), Nr. 3
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  @article{wnuk2020roboterdemonstrator, author = {Wnuk, Markus and Hinze, Christoph and Zürn, Manuel and Lechler, Armin and Verl, Alexander}, journal = {Robotik und Produktion}, number = 3, title = {Roboterdemonstrator kombiniert Simulation und Bildverarbeitung}, url = {https://www.robotik-produktion.de/allgemein/deformiert-kein-problem/}, year = 2020 }
  Link
  https://www.robotik-produktion.de/allgemein/deformiert-kein-problem/
6. Friedl, Sebastian ; Heinemann, Tonja ; Lechler, Armin: Designentscheidungen für OPC-UA-Informationsmodelle/Design Decisions for OPC UA Information Models. In: wt Werkstattstechnik online, wt Werkstattstechnik online. Bd. 110, VDI Fachmedien GmbH and Co. KG (2020), Nr. 05, S. 289--294
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  @article{Friedl_2020, author = {Friedl, Sebastian and Heinemann, Tonja and Lechler, Armin}, doi = {10.37544/1436-4980-2020-05-21}, journal = {wt Werkstattstechnik online}, number = 05, pages = {289--294}, publisher = {{VDI} Fachmedien {GmbH} and Co. {KG}}, title = {Designentscheidungen für {OPC}-{UA}-Informationsmodelle/Design Decisions for {OPC} {UA} Information Models}, url = {https://doi.org/10.37544%2F1436-4980-2020-05-21}, volume = 110, year = 2020 }
  Link
  https://doi.org/10.37544%2F1436-4980-2020-05-21
7. Friedl, Sebastian ; von Arnim, Christian ; Lechler, Armin ; Verl, Alexander: Generation of OPC UA Companion Specification with Eclipse Modeling Framework. In: 2020 16th IEEE International Conference on Factory Communication Systems (WFCS), 2020 16th IEEE International Conference on Factory Communication Systems (WFCS), 2020, S. 1--7
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  @inproceedings{friedl2020generation, author = {Friedl, Sebastian and von Arnim, Christian and Lechler, Armin and Verl, Alexander}, booktitle = {2020 16th IEEE International Conference on Factory Communication Systems (WFCS)}, notes = {Sourced from Microsoft Academic - https://academic.microsoft.com/paper/3034858113}, pages = {1--7}, title = {Generation of OPC UA Companion Specification with Eclipse Modeling Framework}, year = 2020 }
8. Schulte, Alexander ; Lechler, Armin ; Verl, Alexander: Geschwindigkeitssprünge an Vorschubachsen. In: atp magazin, atp magazin. Bd. 62, Vulkan-Verlag GmbH (2020), Nr. 11–12, S. 86–93
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  @article{Schulte_2020, author = {Schulte, Alexander and Lechler, Armin and Verl, Alexander}, doi = {10.17560/atp.v62i11-12.2517}, journal = {atp magazin}, month = {11}, number = {11-12}, pages = {86-93}, publisher = {Vulkan-Verlag {GmbH}}, title = {Geschwindigkeitssprünge an Vorschubachsen}, url = {https://doi.org/10.17560%2Fatp.v62i11-12.2517}, volume = 62, year = 2020 }
  Link
  https://doi.org/10.17560%2Fatp.v62i11-12.2517
9. Brenner, Felix ; Verl, Alexander ; Lechler, Armin: Störgrößenschätzung in Zahnstange-Ritzel-Antrieben. In: Maschinenmarkt, M. (Hrsg.) Maschinenmarkt, MM, Maschinenmarkt, MM. (2020), Nr. 19, S. 74–77
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  @article{brenner2020strgrenschtzung, abstract = {Abtriebsseitige Beschleunigungsdaten an elektromechanischen Vorschubantriebssystem eröffnen neue Möglichkeiten zur Steigerung der Bewegungsdynamik. Um den Einfluss von reibungs- und prozessbedingte Störkräften zu reduzieren, wird am Institut für Steuerungstechnik (ISW) der Univer-sität Stuttgart an regelungstechnischen Verfahren zur Störgrößenschätzung und -kompensation mittles MEMS Beschleunigungssensoren geforscht.}, author = {Brenner, Felix and Verl, Alexander and Lechler, Armin}, editor = {Maschinenmarkt, MM}, journal = {Maschinenmarkt, MM}, language = {deutsch}, month = {11}, number = 19, pages = {74-77}, title = {Störgrößenschätzung in Zahnstange-Ritzel-Antrieben }, url = {https://www.maschinenmarkt.vogel.de/stoergroessenschaetzung-in-zahnstange-ritzel-antrieben-a-976503/}, year = 2020 }
  Link
  https://www.maschinenmarkt.vogel.de/stoergroessenschaetzung-in-zahnstange-ritzel-antrieben-a-976503/
10. Eger, Florian ; Reiff, Colin ; Lechler, Armin ; Verl, Alexander: Weniger Ausschuss bei der Fertigung rotierender Bauteile. In: fachmedien, V. (Hrsg.) wt WerkstattsTechnik, wt WerkstattsTechnik. (2020), Nr. 5, S. 271–275
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  @article{eger2020weniger, abstract = {Bei mehrstufigen Produktionssystemen rotierender Bauteile kann bereits ein kleiner Fehler zu Ausschuss führen. Um die Wettbewerbsfähigkeit europäischer Unternehmen zu gewährleisten, wird eine Null-Fehler Fertigung angestrebt. Wir stellen dafür eine Web-App vor, welche Bauteilvariationen automatisch erkennen und Fehlerkompensationsstrategien ableiten kann. Das Potential des mehrstufigen Produktionssystems wird genutzt um Fehler am Bauteil im Produktionsfluss durch eine geeignete Steuerung und Regelung zu beheben.}, author = {Eger, Florian and Reiff, Colin and Lechler, Armin and Verl, Alexander}, editor = {fachmedien, VDI}, journal = {wt WerkstattsTechnik}, language = {Deutsch}, month = {Mai}, number = 5, pages = {271-275}, title = {Weniger Ausschuss bei der Fertigung rotierender Bauteile}, url = {https://e-paper.vdi-fachmedien.de/webreader-v3/index.html#/2603/1}, year = 2020 }
  Link
  https://e-paper.vdi-fachmedien.de/webreader-v3/index.html#/2603/1
11. Schütz, Andreas ; Helfesrieder, Nico ; Lechler, Armin ; Verl, Alexander: Automatisierte Werkstückfixierung - Formadaptive Aufspannung von Schalenelementen für Bearbeitungsaufgaben mit Industrierobotern. In: wt Werkstattstechnik online, wt Werkstattstechnik online. Bd. 110 (2020), Nr. 01–02, S. 80–85
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  @article{Schuetz2020, author = {Schütz, Andreas and Helfesrieder, Nico and Lechler, Armin and Verl, Alexander}, journal = {wt Werkstattstechnik online}, language = {Deutsch}, month = {02}, number = {01-02}, pages = {80-85}, title = {Automatisierte Werkstückfixierung - Formadaptive Aufspannung von Schalenelementen für Bearbeitungsaufgaben mit Industrierobotern}, url = {https://www.werkstattstechnik.de/wt/currentarticle.php?data[article_id]=92636}, volume = 110, year = 2020 }
  Link
  https://www.werkstattstechnik.de/wt/currentarticle.php?data[article_id]=92636
12. Eger, Florian ; Reiff, Colin ; Tempel, Philipp ; Magnanini, Maria Chiara ; Caputo, Davide ; Lechler, Armin ; Verl, Alexander: Reaching zero-defect manufacturing by compensation of dimensional deviations in the manufacturing of rotating hollow parts. In: Procedia Manufacturing, Procedia Manufacturing. Bd. 51, Elsevier (2020), S. 388–393. — 30th International Conference on Flexible Automation and Intelligent Manufacturing, FAIM 2021 ; Conference date: 15-06-2021 Through 18-06-2021
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  BibTeX
  @article{6f6da48ad3484f158ea738841e3dddd0, abstract = {In many sectors such as the aerospace industry, the manufacturing of rotating components is based on multi-stage production systems to achieve the complex requirements of high quality products. Even in the presence of Industry 4.0 and the increasing connectivity, these systems are very prone to failure due to the high level of potential influences of both the system and the products, ultimately leading to defects. The project “ForZDM”, funded by the EU under Horizon2020, envisions reducing scrap rate by avoiding and compensating defects at an early stage thus guaranteeing a high quality product. This paper presents an approach using an existing manufacturing line to compensate the dimensional deviations of an inner contour of a turbine shaft at an early stage. Based on measurements of the inner contour, a new rotation axis for the subsequent manufacturing processes is calculated in order to avoid unbalances at the end-of-line control. Different algorithms are developed and integrated in a web-based application to find an optimal rotation axis under consideration of the to-be-manufactured outer contour in an operator-friendly usage on the shop floor. The application is connected with the measurement system and the subsequent CNC machine which enables automatic execution and data transfer.}, author = {Eger, Florian and Reiff, Colin and Tempel, Philipp and Magnanini, Maria Chiara and Caputo, Davide and Lechler, Armin and Verl, Alexander}, doi = {10.1016/j.promfg.2020.10.055}, issn = {2351-9789}, journal = {Procedia Manufacturing}, language = {English}, note = {30th International Conference on Flexible Automation and Intelligent Manufacturing, FAIM 2021 ; Conference date: 15-06-2021 Through 18-06-2021}, pages = {388-393}, publisher = {Elsevier}, title = {Reaching zero-defect manufacturing by compensation of dimensional deviations in the manufacturing of rotating hollow parts}, url = {https://doi.org/10.1016%2Fj.promfg.2020.10.055}, volume = 51, year = 2020 }
  Link
  https://doi.org/10.1016%2Fj.promfg.2020.10.055
13. Henke, Torben ; Frick, Florian ; Lechler, Armin ; Verl, Alexander: Adaptive PWM Modulation for an Increased Energy Efficiency of Industrial Drives. In: 2020 International Symposium on Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM), 2020 International Symposium on Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM), 2020, S. 237–242
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  @inproceedings{9161851, abstract = {Switching losses in inverters for industrial electric drives have a noticeable impact on their energy consumption and lifetime. In order to fulfill the accuracy requirements of electric drives for production equipment, a high switching frequency is typically used. This results in high switching losses which are proportional to the switching frequency. However, a high accuracy is not always required. Therefore, a method for adapting the switching frequency of the drive inverter during runtime when high accuracy is not required is presented in this paper. The method includes the identification of operating states of the machine tool, automatic calculation of the controller parameters and strategies for changing the PWM frequency during runtime. Experimental results validate this novel approach.}, author = {Henke, Torben and Frick, Florian and Lechler, Armin and Verl, Alexander}, booktitle = {2020 International Symposium on Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM)}, doi = {10.1109/SPEEDAM48782.2020.9161851}, month = {06}, pages = {237-242}, title = {Adaptive PWM Modulation for an Increased Energy Efficiency of Industrial Drives}, url = {https://ieeexplore.ieee.org/document/9161851/}, year = 2020 }
  Link
  https://ieeexplore.ieee.org/document/9161851/
14. Neubauer, Michael ; Mesmer, Patrick ; Lechler, Armin ; Verl, Alexander: Dynamisches Verhalten von Industrierobotern - Über das Potenzial von Secondary Encodern zur Vermessung. In: wt Werkstatttechnik online, wt Werkstatttechnik online. Bd. 110 (2020), Nr. 3, S. 130–134
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  @article{neubauer2020dynamisches, author = {Neubauer, Michael and Mesmer, Patrick and Lechler, Armin and Verl, Alexander}, journal = {wt Werkstatttechnik online}, month = {03}, number = 3, pages = {130-134}, title = {Dynamisches Verhalten von Industrierobotern - Über das Potenzial von Secondary Encodern zur Vermessung}, volume = 110, year = 2020 }
15. von Arnim, Christian ; Lechler, Armin ; Riedel, Oliver ; Verl, Alexander: Fragmentation in Reconfigured Real-time Production Networks. In: Annals of Scientific Society for Assembly, Handling and Industrial Robotics, Annals of Scientific Society for Assembly, Handling and Industrial Robotics : Springer, 2020. — Open Access — ISBN 978-3-662-61755-7, S. 105--115
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  @inproceedings{vonArnim2020fragmentation, abstract = {A reconfigurable production is able to adapt to a new product in a short time. This can be built up from cyber-physical production systems (CPPS) which exchange various data with several devices simultaneously via a convergent network. In these future production systems, convergent networks will connect more participants than real-time production networks do today. In order to enable uninterrupted operation, reconfigurations must not affect existing communication. Due to this limitation, fragmentation of the configuration can occur, restricting future operations. This paper investigates fragmentation caused by reconfigurations using a simulation to determine whether fragmentation can lead to problems in future production networks.}, author = {von Arnim, Christian and Lechler, Armin and Riedel, Oliver and Verl, Alexander}, booktitle = {Annals of Scientific Society for Assembly, Handling and Industrial Robotics}, doi = {https://doi.org/10.1007/978-3-662-61755-7_10}, isbn = {978-3-662-61755-7}, note = {Open Access}, pages = {105--115}, publisher = {Springer}, title = {Fragmentation in Reconfigured Real-time Production Networks}, url = {https://link.springer.com/chapter/10.1007/978-3-662-61755-7_10}, year = 2020 }
  Link
  https://link.springer.com/chapter/10.1007/978-3-662-61755-7_10
16. Mesmer, Patrick ; Neubauer, Michael ; Lechler, Armin ; Verl, Alexander: Drive-based Vibration Damping Control for Robot Machining. In: IEEE Robotics and Automation Letters, IEEE Robotics and Automation Letters. Bd. 5 (2020), Nr. 2, S. 564–571
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  BibTeX
  @article{8936926, author = {Mesmer, Patrick and Neubauer, Michael and Lechler, Armin and Verl, Alexander}, doi = {10.1109/LRA.2019.2960723}, issn = {2377-3774}, journal = {IEEE Robotics and Automation Letters}, month = {04}, number = 2, pages = {564-571}, title = {Drive-based Vibration Damping Control for Robot Machining}, url = {https://ieeexplore.ieee.org/document/8936926/}, volume = 5, year = 2020 }
  Link
  https://ieeexplore.ieee.org/document/8936926/
17. Tinsel, Erik-Felix ; Fur, Shan ; Lechler, Armin ; Riedel, Oliver: Durchgängigkeit von Steuerungstests. In: wt Werkstattstechnik online, wt Werkstattstechnik online. Bd. 110 (2020), Nr. 5/2020, S. 277–281
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  @article{tinsel2020durchgngigkeit, author = {Tinsel, Erik-Felix and Fur, Shan and Lechler, Armin and Riedel, Oliver}, journal = {wt Werkstattstechnik online}, language = {deutsch}, month = {Mai}, number = {5/2020}, pages = {277-281}, title = {Durchgängigkeit von Steuerungstests}, url = {https://e-paper.vdi-fachmedien.de/webreader-v3/index.html#/2603/9}, volume = 110, year = 2020 }
  Link
  https://e-paper.vdi-fachmedien.de/webreader-v3/index.html#/2603/9
18. Mesmer, Patrick ; Neubauer, Michael ; Lechler, Armin ; Verl, Alexander: Ansätze zur Genauigkeits- und Dynamiksteigerung von Industrierobotern mit abtriebsseitiger Winkelerfassung. In: GmbH, V. F. (Hrsg.) Antriebstechnik, Antriebstechnik. Bd. Sonderausgabe Marktübersicht (2020), S. 20–22
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  @article{mesmer2020anstze, author = {Mesmer, Patrick and Neubauer, Michael and Lechler, Armin and Verl, Alexander}, editor = {GmbH, Vereinigte Fachverlage}, journal = {Antriebstechnik}, month = {11}, pages = {20-22}, title = {Ansätze zur Genauigkeits- und Dynamiksteigerung von Industrierobotern mit abtriebsseitiger Winkelerfassung}, volume = {Sonderausgabe Marktübersicht}, year = 2020 }
19. Schulte, Alexander ; Lechler, Armin ; Verl, Alexander: Eckenfahrt durch schlagartige Beschleunigung. In: Antriebstechnik, Antriebstechnik. Bd. 09 (2020), S. 58–59
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  @article{schulte2020eckenfahrt, author = {Schulte, Alexander and Lechler, Armin and Verl, Alexander}, journal = {Antriebstechnik}, month = {09}, pages = {58-59}, title = {Eckenfahrt durch schlagartige Beschleunigung}, volume = 09, year = 2020 }
20. Zürn, Manuel ; Hinze, Christoph ; Wnuk, Markus ; Lechler, Armin ; Verl, Alexander: Modellbasierte Regelung. In: Robotik und Produktion, Robotik und Produktion. (2020)
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  @article{zurn2020modellbasierte, author = {Zürn, Manuel and Hinze, Christoph and Wnuk, Markus and Lechler, Armin and Verl, Alexander}, journal = {Robotik und Produktion}, month = {11}, title = {Modellbasierte Regelung}, url = {https://www.industrial-production.de/industrieroboter/bilder/modellbasierte-regelung-1.htm}, year = 2020 }
  Link
  https://www.industrial-production.de/industrieroboter/bilder/modellbasierte-regelung-1.htm
21. Wnuk, Markus ; Hinze, Christoph ; Lechler, Armin ; Verl, Alexander: Kinematic Multibody Model Generation of Deformable Linear Objects from Point Clouds. In: 2020 International Conference on Intelligent Robots and Systems (IROS), 2020 International Conference on Intelligent Robots and Systems (IROS), 2020, S. 9545–9552
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  @inproceedings{wnuk2020kinematic, author = {Wnuk, Markus and Hinze, Christoph and Lechler, Armin and Verl, Alexander}, booktitle = {2020 International Conference on Intelligent Robots and Systems (IROS)}, doi = {10.1109/IROS45743.2020.9340887}, month = {10}, pages = {9545-9552}, title = {Kinematic Multibody Model Generation of Deformable Linear Objects from Point Clouds}, year = 2020 }
22. Helfesrieder, Nico ; Lechler, Armin ; Verl, Alexander: Method for generating manufacturable, topology-optimized parts for Laminated Layer Manufacturing. In: Procedia CIRP, Procedia CIRP. Bd. 93 (2020), S. 38--43
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  @article{Helfesrieder.2020, abstract = {The great flexibility provided by generative manufacturing offers immense potential for the structural component optimization. However, this freedom needs to be utilized by appropriate CAx tools. In this paper, we present a novel slicing method, enabling the automatic generation of topology-optimized Laminated Layer Manufacturing (LLM) parts. With this method a part of arbitrary shape can be automatically sliced and equipped with a uniform virtual grid that is suitable for manufacturing. The optimal density distribution is then mapped onto the individual slices and locally approximated through the introduction of variably shaped cavities. By using 3D modeling techniques all LLM sheets are modeled parametrically and assembled automatically. To verify the functionality of the presented method, it is applied to two practical parts and compared with a conventional topology optimization method.}, author = {Helfesrieder, Nico and Lechler, Armin and Verl, Alexander}, doi = {10.1016/j.procir.2020.04.048}, issn = {22128271}, journal = {Procedia CIRP}, pages = {38--43}, title = {Method for generating manufacturable, topology-optimized parts for Laminated Layer Manufacturing}, url = {http://www.sciencedirect.com/science/article/pii/S2212827120306144}, volume = 93, year = 2020 }
  Link
  http://www.sciencedirect.com/science/article/pii/S2212827120306144
23. Tasci, Timur ; Walker, Moritz ; Lechler, Armin ; Verl, Alexander: Towards Modular and Distributed Automation Systems – Leveraging Software Containers for Industrial Control. In: GmbH, V. W. (Hrsg.) ; GmbH, V. W. (Hrsg.): Automation 2020, Automation 2020. Bd. 2375. 1. Aufl. Düsseldorf : VDI Verlag, 2020. — PrefaceOur future is the world we are going to live in,attracting our fantasies, speculations, fears and hopes. We reallywould like to know something about it and want to be prepared.Therefore, we observe trends. An obvious trend is that our world getsmore and more connected. Information is seamlessly following and doingthis quickly. We learn that data can build business and inﬂuencespeople and society.AUTOMATION brings people together who areinterested in the future of automation. Many of us already shape thisfeld in factory automation and process automation, we create methodsand synergies, digital business models, we use artifcial intelligenceand autonomous systems and latest communication technologies like 5Gin automation.Let us learn together how existing businesses can bechanged and new businesses can be created by a couple of enablersclearly at sight when you know how and why to look for them. Let uschallenge our minds, our behaviors and get ready for our fut...
  - BibTeX
  BibTeX
  @incollection{2020:vdi_wissensforum_gmbh:automation, address = {Düsseldorf}, author = {Tasci, Timur and Walker, Moritz and Lechler, Armin and Verl, Alexander}, booktitle = {Automation 2020}, edition = 1, editor = {GmbH, VDI Wissensforum}, note = {PrefaceOur future is the world we are going to live in,attracting our fantasies, speculations, fears and hopes. We reallywould like to know something about it and want to be prepared.Therefore, we observe trends. An obvious trend is that our world getsmore and more connected. Information is seamlessly following and doingthis quickly. We learn that data can build business and inﬂuencespeople and society.AUTOMATION brings people together who areinterested in the future of automation. Many of us already shape thisfeld in factory automation and process automation, we create methodsand synergies, digital business models, we use artifcial intelligenceand autonomous systems and latest communication technologies like 5Gin automation.Let us learn together how existing businesses can bechanged and new businesses can be created by a couple of enablersclearly at sight when you know how and why to look for them. Let uschallenge our minds, our behaviors and get ready for our fut...}, publisher = {VDI Verlag}, series = {VDI-Berichte}, title = {Towards Modular and Distributed Automation Systems – Leveraging Software Containers for Industrial Control}, volume = 2375, year = 2020 }
2019
1. Helfesrieder, Nico ; Neubauer, Michael ; Lechler, Armin ; Verl, Alexander: Hochautomatisierte Roboterzelle mit adaptiver Werkstückaufspannung für die komplexe Holzbearbeitung. In: agt agile technik verlag (Hrsg.) HOB Die Holzbearbeitung, HOB Die Holzbearbeitung. (2019), Nr. 3/2019, S. 57–58
  - BibTeX
  BibTeX
  @article{helfesrieder2019hochautomatisierte, author = {Helfesrieder, Nico and Neubauer, Michael and Lechler, Armin and Verl, Alexander}, editor = {agt agile technik verlag}, journal = {HOB Die Holzbearbeitung}, number = {3/2019}, pages = {57-58}, title = {Hochautomatisierte Roboterzelle mit adaptiver Werkstückaufspannung für die komplexe Holzbearbeitung}, year = 2019 }
2. von Arnim, Christian ; Friedl, Sebastian ; Lechler, Armin ; Verl, Alexander: Automated OPC UA address space generation from existing data structures. In: 2019 IEEE 17th International Conference on Industrial Informatics (INDIN), 2019 IEEE 17th International Conference on Industrial Informatics (INDIN). Bd. 1, 2019, S. 959–964
  - BibTeX
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  @inproceedings{vonArnim_2019_OpcUaAddressSpaceGeneration, abstract = {If existing communication systems are converted to OPC UA, an OPC UA information model is required for the existing data structures. In small systems, an information model can be created manually with reasonable effort. In systems with numerous data structures, however, the effort for manual creation is too demanding. In order to continue using the existing data structures in the code without having to handle OPC UA-specific data structures, a transformation between the existing data structures and the OPC UA information model is necessary. This article presents a possibility of generating an OPC UA information model by a description of the existing data structures, e.g. generated based on ROS messages. The description of data structures is evaluated at runtime and linked with the existing data structures. The different representations for the different access types (read, request/response) in the OPC UA information model are discussed. In addition, an OPC UA client can read the information model from the descriptions of the data structures and write the read data back to the original data structure. In this way, both the provision of the data via OPC UA and the reception are possible. The adaptation effort of the existing software is minimal, since the existing structures are automatically populated and can still be used as usual.}, author = {von Arnim, Christian and Friedl, Sebastian and Lechler, Armin and Verl, Alexander}, booktitle = {2019 IEEE 17th International Conference on Industrial Informatics (INDIN)}, doi = {10.1109/INDIN41052.2019.8972189}, issn = {1935-4576}, month = {07}, pages = {959-964}, title = {Automated OPC UA address space generation from existing data structures}, url = {https://ieeexplore.ieee.org/document/8972189/}, volume = 1, year = 2019 }
  Link
  https://ieeexplore.ieee.org/document/8972189/
3. König, Timo ; Verl, Alexander ; Lechler, Armin: Motion superimposition for machine tool trajectories using asynchronous axis interpolation. In: 13th IFAC Workshop on Intelligent Manufacturing Systems IMS 2019, 13th IFAC Workshop on Intelligent Manufacturing Systems IMS 2019. Bd. Volume 52 : ELSEVIER - ScienceDirect, 2019, S. 300–305
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  @inproceedings{noauthororeditor, abstract = {This paper presents a method for reducing non-productive times in the planning and interpolation of lift movements during 2.5D machining. At the moment, this mostly vertical lift movement is executed separately from the position changing in the operating plane. This sequential processing of motions increases the non-productive time in processes with frequent changes of operating height, such as laser cutting. The reduction is realized by superimposing the planar path movements with lift motion. An asynchronous axis interpolation is applied to make use of the maximum machine dynamics. In addition, known obstacles can be taken into account by further parameters in the planning.}, author = {König, Timo and Verl, Alexander and Lechler, Armin}, booktitle = {13th IFAC Workshop on Intelligent Manufacturing Systems IMS 2019}, doi = {https://doi.org/10.1016/j.ifacol.2019.10.046}, eventdate = {12. August 2019}, eventtitle = {13th IFAC Workshop on Intelligent Manufacturing Systems IMS 2019}, language = {englisch}, number = 10, organization = {IFAC}, pages = {300-305}, publisher = {ELSEVIER - ScienceDirect}, series = {IFAC-PapersOnLine}, title = {Motion superimposition for machine tool trajectories using asynchronous axis interpolation}, url = {https://www.sciencedirect.com/science/article/pii/S2405896319309012}, venue = {Oshawa, Kanada}, volume = {Volume 52}, year = 2019 }
  Link
  https://www.sciencedirect.com/science/article/pii/S2405896319309012
4. Schulte, Alexander ; Zahn, Peter ; Lechler, Armin ; Verl, Alexander: Extreme Beschleunigung von Vorschubachsen. In: MM MaschinenMarkt, MM MaschinenMarkt., Vogel Communications Group GmbH & Co. KG (2019), Nr. 24, S. 68–69
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  @article{schulte2019extreme, author = {Schulte, Alexander and Zahn, Peter and Lechler, Armin and Verl, Alexander}, journal = {MM MaschinenMarkt}, language = {deutsch}, month = {11}, number = 24, pages = {68-69}, publisher = {Vogel Communications Group GmbH & Co. KG}, title = {Extreme Beschleunigung von Vorschubachsen}, url = {https://www.maschinenmarkt.vogel.de/extremes-beschleunigungsvermoegen-von-vorschubachsen-durch-zusaetzlichen-aktor-a-880746/}, year = 2019 }
  Link
  https://www.maschinenmarkt.vogel.de/extremes-beschleunigungsvermoegen-von-vorschubachsen-durch-zusaetzlichen-aktor-a-880746/
5. Heinemann, Tonja ; Riedel, Oliver ; Lechler, Armin: Generating Smooth Trajectories in Local Path Planning for Automated Guided Vehicles in Production. In: Procedia Manufacturing, Procedia Manufacturing : Elsevier B.V., 2019, S. 98–105
  - BibTeX
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  @inproceedings{heinemann2019generating, author = {Heinemann, Tonja and Riedel, Oliver and Lechler, Armin}, booktitle = {Procedia Manufacturing}, doi = {https://doi.org/10.1016/j.promfg.2020.01.233}, language = {english}, number = {Volume 39}, pages = {98-105}, publisher = {Elsevier B.V.}, title = {Generating Smooth Trajectories in Local Path Planning for Automated Guided Vehicles in Production}, url = {https://www.sciencedirect.com/science/article/pii/S2351978920302808}, year = 2019 }
  Link
  https://www.sciencedirect.com/science/article/pii/S2351978920302808
6. Menze, Christian ; Becker, Dina ; Stehle, Thomas ; Möhring, Hans-Christian ; Helfesrieder, Nico ; Lechler, Armin ; Verl, Alexander: Spanende Bearbeitung mit Industrierobotern und Bearbeitungszentren: Vergleichende Analyse der erzielbaren Bauteilqualität in der Holzbearbeitung. In: wt Werkstattstechnik online, wt Werkstattstechnik online. Bd. 109 (2019), Nr. 9, S. 650–655
  - BibTeX
  BibTeX
  @article{Menze.2019, author = {Menze, Christian and Becker, Dina and Stehle, Thomas and M{\"o}hring, Hans-Christian and Helfesrieder, Nico and Lechler, Armin and Verl, Alexander}, journal = {wt Werkstattstechnik online}, number = 9, pages = {650-655}, title = {Spanende Bearbeitung mit Industrierobotern und Bearbeitungszentren: Vergleichende Analyse der erzielbaren Bauteilqualit{\"a}t in der Holzbearbeitung}, volume = 109, year = 2019 }
7. Hinze, Christoph ; Wnuk, Markus ; Lechler, Armin ; Verl, Alexander: Harte Echtzeit für weiche Materialien. In: atp magazin, atp magazin. Bd. 61, Vulkan-Verlag GmbH (2019), Nr. 11–12, S. 112
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  BibTeX
  @article{Hinze_2019, author = {Hinze, Christoph and Wnuk, Markus and Lechler, Armin and Verl, Alexander}, doi = {10.17560/atp.v61i11-12.2446}, journal = {atp magazin}, month = {11}, number = {11-12}, pages = 112, publisher = {Vulkan-Verlag {GmbH}}, title = {Harte Echtzeit für weiche Materialien}, url = {https://doi.org/10.17560%2Fatp.v61i11-12.2446}, volume = 61, year = 2019 }
  Link
  https://doi.org/10.17560%2Fatp.v61i11-12.2446
8. Neubauer, Michael ; Mesmer, Patrick ; Lechler, Armin ; Verl, Alexander: Industrieroboter mit offener Steuerungsplattform. In: Antriebstechnik, Antriebstechnik. (2019), Nr. 2019/10, S. 96–97
  - BibTeX
  BibTeX
  @article{neubauer2019industrieroboter, author = {Neubauer, Michael and Mesmer, Patrick and Lechler, Armin and Verl, Alexander}, journal = {Antriebstechnik}, number = {2019/10}, pages = {96-97}, title = {Industrieroboter mit offener Steuerungsplattform}, year = 2019 }
9. Mesmer, Patrick ; Neubauer, Michael ; Lechler, Armin ; Verl, Alexander: Spanende Bearbeitung mit Industrierobotern - Herausforderungen bei der Roboterbearbeitung. In: Robotik und Produktion, Robotik und Produktion. Bd. 4/2019 (2019), S. 54–55
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  BibTeX
  @article{mesmer2019spanende, author = {Mesmer, Patrick and Neubauer, Michael and Lechler, Armin and Verl, Alexander}, journal = {Robotik und Produktion}, pages = {54-55}, title = {Spanende Bearbeitung mit Industrierobotern - Herausforderungen bei der Roboterbearbeitung}, volume = {4/2019}, year = 2019 }
10. Wnuk, Markus ; Wenger, Thomas ; Lechler, Armin ; Verl, Alexander: Nachgiebigkeit ist Einstellungssache. In: Eberhard, P. (Hrsg.) handling, handling. (2019), Nr. 9, S. 20
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  BibTeX
  @article{wnuk2019tech, author = {Wnuk, Markus and Wenger, Thomas and Lechler, Armin and Verl, Alexander}, editor = {Eberhard, Peter}, journal = {handling}, month = {09}, number = 9, pages = 20, title = {Nachgiebigkeit ist Einstellungssache}, year = 2019 }
11. Hinze, Christoph ; Tomzik, David ; Lechler, Armin ; Xu, Xun ; Verl, Alexander: Control Architecture for Industrial Robotics based on Container Virtualization. In: Schüppstuhl, T. ; Tracht, K. ; Roßmann, J. (Hrsg.) ; Schüppstuhl, T. ; Tracht, K. ; Roßmann, J. (Hrsg.): Tagungsband des 4. Kongresses Montage Handhabung Industrieroboter, Tagungsband des 4. Kongresses Montage Handhabung Industrieroboter. Berlin, Heidelberg : Springer Berlin Heidelberg, 2019 — ISBN 978-3-662-59317-2, S. 64--73
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  BibTeX
  @inproceedings{10.1007/978-3-662-59317-2_7, abstract = {Current robot control is a rather static, monolithic application, where the application data has to be programmed, before the actual process starts. For the automation of more dynamical tasks, additional real-time control loops for process control and a more flexible robot control are needed. Therefore, this paper introduces a robot control architecture for real-time and separate asynchronous communication, which is able to build up local real-time control loops as well as including massively scalable cloud components. In a proof-of-concept, a multibody dynamic simulation of a robot and a controller are virtualized as separate components. The real-time suitability of the architecture is evaluated in comparison with non-virtualized and a monolithic variant of the same application.}, address = {Berlin, Heidelberg}, author = {Hinze, Christoph and Tomzik, David and Lechler, Armin and Xu, Xun and Verl, Alexander}, booktitle = {Tagungsband des 4. Kongresses Montage Handhabung Industrieroboter}, editor = {Sch{\"u}ppstuhl, T. and Tracht, K. and Ro{\ss}mann, J.}, isbn = {978-3-662-59317-2}, pages = {64--73}, publisher = {Springer Berlin Heidelberg}, title = {Control Architecture for Industrial Robotics based on Container Virtualization}, year = 2019 }
12. Heinemann, Tonja ; Lechler, Armin ; Riedel, Oliver ; Verl, Alexander: Vermeidung von Nothalten von fahrerlosen Transportfahrzeugen durch lokale Bahnplanung. In: Krüger, J. ; Uhlmann, E. ; Verl, A. ; Rieder, O. ; Brecher, C. (Hrsg.) ; Krüger, J. ; Uhlmann, E. ; Verl, A. ; Rieder, O. ; Brecher, C. (Hrsg.): Fortschritt-Berichte VDI. Reihe 2, Fertigungstechnik, Fortschritt-Berichte VDI. Reihe 2, Fertigungstechnik. Bd. Produktion 2030-Wandel in der Automatisierungstechnik. Als Manuskript gedruckt. Düsseldorf : VDI Verlag, 2019 — ISBN 3183699028, S. 151
  - BibTeX
  BibTeX
  @inbook{heinemann2019vermeidung, address = {Düsseldorf}, author = {Heinemann, Tonja and Lechler, Armin and Riedel, Oliver and Verl, Alexander}, chapter = 3, edition = {Als Manuskript gedruckt}, editor = {Krüger, Jörg and Uhlmann, Eckart and Verl, Alexander and Rieder, Oliver and Brecher, Christian}, isbn = {3183699028}, number = 699, pages = 151, publisher = {VDI Verlag}, series = {Fortschritt-Berichte VDI. Reihe 2, Fertigungstechnik}, title = {Vermeidung von Nothalten von fahrerlosen Transportfahrzeugen durch lokale Bahnplanung}, volume = {Produktion 2030 - Wandel in der Automatisierungstechnik}, year = 2019 }
13. König, Timo ; Atmosudiro, Agus ; Verl, Alexander ; Lechler, Armin: G2-stetiges Klothoidenüberschleifen. In: wt Werkstattstechnik online, wt Werkstattstechnik online. Bd. Jahrgang 109 (2019), Nr. 6, S. 489–493
  - BibTeX
  BibTeX
  @article{konig209g2stetiges, abstract = {Das Klothoidenüberschleifverfahren ermöglicht einen G2-stetigen Übergang zwischen NC (Numerical Control)-Sätzen bei linearem Krümmungsprofil. Zudem ist dieses Profil über die Verteilung der Klothoiden- und Kreissegmente steuerbar und bietet die Möglichkeit beispielsweise hinsichtlich der Vorschubgeschwindigkeit optimiert zu werden. Allgemein entstehen glattere Dynamikprofile, welche die Maschinenbelastung reduzieren oder höhere Bearbeitungsgeschwindigkeiten zulassen.}, author = {König, Timo and Atmosudiro, Agus and Verl, Alexander and Lechler, Armin}, journal = {wt Werkstattstechnik online}, language = {deutsch}, month = {06}, number = 6, pages = {489-493}, title = {G2-stetiges Klothoidenüberschleifen}, volume = {Jahrgang 109}, year = 2019 }
14. Ellwein, Carsten ; Schmidt, Alexander ; Lechler, Armin ; Riedel, Oliver: Distributed Manufacturing: A Vision About Shareconomy in the Manufacturing Industry. In: Proceedings of the 2019 3rd International Conference on Automation, Control and Robots, Proceedings of the 2019 3rd International Conference on Automation, Control and Robots. Prague, Czech Republic : ACM, 2019 — ISBN 978-1-4503-7288-6, S. 90--95
  - BibTeX
  - Link
  BibTeX
  @inproceedings{Ellwein:2019:DMV:3365265.3365270, acmid = {3365270}, address = {New York, NY, USA}, author = {Ellwein, Carsten and Schmidt, Alexander and Lechler, Armin and Riedel, Oliver}, booktitle = {Proceedings of the 2019 3rd International Conference on Automation, Control and Robots}, doi = {10.1145/3365265.3365270}, isbn = {978-1-4503-7288-6}, location = {Prague, Czech Republic}, numpages = {6}, pages = {90--95}, publisher = {ACM}, series = {ICACR 2019}, title = {Distributed Manufacturing: A Vision About Shareconomy in the Manufacturing Industry}, url = {http://doi.acm.org/10.1145/3365265.3365270}, year = 2019 }
  Link
  http://doi.acm.org/10.1145/3365265.3365270
2018
1. Mesmer, Patrick ; Lechler, Armin ; Verl, Alexander: Antriebsbasierte Schwingungsdämpfung an Industrierobotern für die spanende Bearbeitung. In: Antriebstechnik, Antriebstechnik. Bd. 10/2018, Vereinigte Fachverlage GmbH (2018), S. 96–97
  - BibTeX
  BibTeX
  @article{mesmer2018aSDaIR, author = {Mesmer, Patrick and Lechler, Armin and Verl, Alexander}, journal = {Antriebstechnik}, month = {Oktober}, pages = {96-97}, publisher = {Vereinigte Fachverlage GmbH}, title = {Antriebsbasierte Schwingungsdämpfung an Industrierobotern für die spanende Bearbeitung}, volume = {10/2018}, year = 2018 }
2. Strljic, Matthias Milan ; Korb, Tobias ; Tasci, Timur ; Tinsel, Erik-Felix ; Pawlowicz, Daniel ; Riedel, Oliver ; Lechler, Armin: A platform-independent communication framework for the simplified development of shop-floor applications as microservice components. In: 2018 IEEE International Conference on Advanced Manufacturing (ICAM), 2018 IEEE International Conference on Advanced Manufacturing (ICAM), 2018, S. 250–253
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  @inproceedings{8615044, abstract = {For flexible and highly networked industry 4.0 production processes, software components are becoming more and more significant for reconfiguring production systems or facilitating complex functionalities. Standards for communication such as OPC UA have a crucial role in the data exchange required in this context. However, these systems adopt the static properties from their domain, which have led to their success and widespread use in Industry 4.0. The most critical core difficulties with OPC UA are the definition of communication mechanisms and the data model to be used in a strictly coupled environment. Because of their central client-server architecture and missing communication patterns, these systems do not offer the necessary flexibility and platform independence to use the entire spectrum of possible software tools efficiently. Especially negatively affected is the initial effort to integrate such systems and to guarantee the scalability of the infrastructure later on. With a focus on these challenges, the message-based communication framework XSC has been developed for the shop-floor, which uses the high-performance ZeroMQ framework and the data format Google Protocol Buffers for platform independence and a high degree of efficiency. It has a scalable and distributed multi-agent architecture that provides a distributed registry for the usage and provision of microservice components. Besides, multiple communication patterns were provided to meet the requirements of both environments, shop-floor, and cloud computing applications.}, author = {Strljic, Matthias Milan and Korb, Tobias and Tasci, Timur and Tinsel, Erik-Felix and Pawlowicz, Daniel and Riedel, Oliver and Lechler, Armin}, booktitle = {2018 IEEE International Conference on Advanced Manufacturing (ICAM)}, doi = {10.1109/AMCON.2018.8615044}, month = {11}, pages = {250-253}, title = {A platform-independent communication framework for the simplified development of shop-floor applications as microservice components}, url = {https://ieeexplore.ieee.org/document/8615044/}, year = 2018 }
  Link
  https://ieeexplore.ieee.org/document/8615044/
3. Ellwein, Carsten ; Schmidt, Alexander ; Riedel, Oliver ; Lechler, Armin: Shareconomy in der Fertigungsindustrie. In: ZWF Zeitschrift für wirtschaftlichen Fabrikbetrieb, ZWF Zeitschrift für wirtschaftlichen Fabrikbetrieb. Bd. 113, Carl Hanser Verlag (2018), Nr. 11, S. 775--778
  - BibTeX
  BibTeX
  @article{ellwein2018shareconomy, author = {Ellwein, Carsten and Schmidt, Alexander and Riedel, Oliver and Lechler, Armin}, doi = {https://doi.org/10.3139/104.112010}, journal = {ZWF Zeitschrift f{\"u}r wirtschaftlichen Fabrikbetrieb}, month = {11}, number = 11, pages = {775--778}, publisher = {Carl Hanser Verlag}, title = {Shareconomy in der Fertigungsindustrie}, volume = 113, year = 2018 }
4. Strljic, Matthias Milan ; Brovkina, Daniella ; Korb, Tobias ; Riedel, Oliver ; Lechler, Armin: Platform architecture concept for the composition of collective cloud manufacturing. In: 2018 25th International Conference on Mechatronics and Machine Vision in Practice (M2VIP), 2018 25th International Conference on Mechatronics and Machine Vision in Practice (M2VIP) : IEEE, 2018, S. 1--6
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  BibTeX
  @inproceedings{strljic2018platform, author = {Strljic, Matthias Milan and Brovkina, Daniella and Korb, Tobias and Riedel, Oliver and Lechler, Armin}, booktitle = {2018 25th International Conference on Mechatronics and Machine Vision in Practice (M2VIP)}, organization = {IEEE}, pages = {1--6}, title = {Platform architecture concept for the composition of collective cloud manufacturing}, year = 2018 }
5. Henke, Torben ; Zahn, Peter ; Frick, Florian ; Lechler, Armin ; Sturm, M. (Hrsg.) ; Sturm, M. (Hrsg.): TSN and OPC UA for Industrial Automation. www.weka-fachmedien.de : WEKA FACHMEDIEN GmbH, 2018 — ISBN 978-3-645-50173-6
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  BibTeX
  @proceedings{henke2018industrial, abstract = {Convergent communication networks with a multitude of differing data flows are a promising approach to increase information consistency and device interoperability and so enable new applications and business models in industrial automation and production environments. A required key feature for the application of control applications is deterministic real-time behavior of such networks. With the presence of IEEE 802.1 TSN, there is a promising vendor and application independent networking technology available. This paper analyzes typical parameters and requirements of fieldbus technology which is used today for real-time applications and their relation to TSN mechanisms within convergent networks. Also, the potential of future realizations using TSN in conjunction with OPC UA Pub/Sub is shown. Focus is laid on specific challenges which will require some further work to enable fieldbus-like performance over such infrastructures.}, address = {www.weka-fachmedien.de}, author = {Henke, Torben and Zahn, Peter and Frick, Florian and Lechler, Armin}, editor = {Sturm, Matthias}, eventdate = {27.02 - 01.03.2018}, eventtitle = {embedded world Conference}, isbn = {978-3-645-50173-6}, language = {eng}, publisher = {WEKA FACHMEDIEN GmbH}, title = {TSN and OPC UA for Industrial Automation}, year = 2018 }
6. Zahn, Peter ; Lechler, Armin ; Verl, Alexander: Vorrichtung und Verfahren zur Erzeugung einer Relativbewegung zwischen einem Werkzeug und einem Werkstück (mittels trägheitsbasiertem Impulsaktor), Patentamt, E. (Hrsg.). , (PCT/EP2018/062608).
  - BibTeX
  BibTeX
  @patent{zahn2018vorrichtung, author = {Zahn, Peter and Lechler, Armin and Verl, Alexander}, editor = {Patentamt, Europäisches}, number = {PCT/EP2018/062608}, title = {Vorrichtung und Verfahren zur Erzeugung einer Relativbewegung zwischen einem Werkzeug und einem Werkstück (mittels trägheitsbasiertem Impulsaktor)}, year = 2018 }
7. Wnuk, Markus ; Lechler, Armin ; Verl, Alexander: Der Umgang mit Weichheit. In: Eberhard, P. (Hrsg.) handling, handling. (2018), Nr. 10, S. 34–35
  - BibTeX
  BibTeX
  @article{wnuk2018tech, author = {Wnuk, Markus and Lechler, Armin and Verl, Alexander}, editor = {Eberhard, Peter}, journal = {handling}, number = 10, pages = {34-35}, title = {Der Umgang mit Weichheit}, year = 2018 }
8. Wnuk, Markus ; Lechler, Armin ; Verl, Alexander: Formschlüssiges Spannen leicht gemacht. In: Michael, C. (Hrsg.) KEM Konstruktion, KEM Konstruktion. (2018), Nr. 12, S. 34–35
  - BibTeX
  BibTeX
  @article{wnuk2018formschlssiges, author = {Wnuk, Markus and Lechler, Armin and Verl, Alexander}, editor = {Michael, Corban}, journal = {KEM Konstruktion}, number = 12, pages = {34-35}, title = {Formschlüssiges Spannen leicht gemacht}, year = 2018 }
9. Wesseler, Peter ; Kaiser, Benjamin ; te Vrugt, Jürgen ; Lechler, Armin ; Verl, Alexander: Camera Based Path Planning for Low Quantity : High Variant Manufacturing with Industrial Robots. In: Verl, A. ; Xu, P. ; Csiszar, A. (Hrsg.) ; Verl, A. ; Xu, P. ; Csiszar, A. (Hrsg.): 2018 25th International Conference on Mechatronics and Machine Vision in Practice (M2VIP), 2018 25th International Conference on Mechatronics and Machine Vision in Practice (M2VIP) : IEEE, 2018 — ISBN 978-1-5386-7543-4 and 978-1-5386-7544-1 and 978-1-5386-7545-8, S. 260–265
  - BibTeX
  BibTeX
  @inproceedings{wesseler2018camera, address = {Piscataway, NJ}, author = {Wesseler, Peter and Kaiser, Benjamin and te Vrugt, Jürgen and Lechler, Armin and Verl, Alexander}, booktitle = {2018 25th International Conference on Mechatronics and Machine Vision in Practice (M2VIP)}, doi = {10.1109/M2VIP.2018.8600833}, editor = {Verl, A. and Xu, P. and Csiszar, A.}, eventdate = {2018-11-20/2018-11-22}, eventtitle = {2018 25th International Conference on Mechatronics and Machine Vision in Practice (M2VIP)}, isbn = {{978-1-5386-7543-4} and {978-1-5386-7544-1} and {978-1-5386-7545-8}}, language = {eng}, pages = {260-265}, publisher = {IEEE}, title = {Camera Based Path Planning for Low Quantity : High Variant Manufacturing with Industrial Robots}, venue = {Stuttgart}, year = 2018 }
10. Zahn, Peter ; Lechler, Armin ; Verl, Alexander: Vorschubantrieb für unstetige Bewegungsprofile - Konzept zur Bewegungserzeugung an Vorschubachsen mittels eines trägheitsbasierten Impulsaktors. In: Verlag, S. V. (Hrsg.) wt Werkstattstechnik online, wt Werkstattstechnik online. Bd. 108 (2018), Nr. 5, S. 295–300
  - BibTeX
  - Link
  BibTeX
  @article{zahn2018vorschubantrieb, author = {Zahn, Peter and Lechler, Armin and Verl, Alexander}, editor = {Verlag, Springer VDI}, journal = {wt Werkstattstechnik online}, number = 5, pages = {295-300}, title = {Vorschubantrieb für unstetige Bewegungsprofile - Konzept zur Bewegungserzeugung an Vorschubachsen mittels eines trägheitsbasierten Impulsaktors}, url = {https://www.werkstattstechnik.de/wt/currentarticle.php?data[article_id]=89617}, volume = 108, year = 2018 }
  Link
  https://www.werkstattstechnik.de/wt/currentarticle.php?data[article_id]=89617
11. Helfesrieder, Nico ; Lechler, Armin ; Verl, Alexander: Mehr Steifigkeit bei weniger Gewicht. In: MM Maschinenmarkt, MM Maschinenmarkt., Vogel Communications Group GmbH & Co. KG (2018), Nr. 019, S. 112–113
  - BibTeX
  BibTeX
  @article{helfesrieder2018steifigkeit, author = {Helfesrieder, Nico and Lechler, Armin and Verl, Alexander}, journal = {MM Maschinenmarkt}, month = {09}, number = 019, pages = {112-113}, publisher = {Vogel Communications Group GmbH & Co. KG}, title = {Mehr Steifigkeit bei weniger Gewicht}, year = 2018 }
12. Hinze, Christoph ; Tasci, Timur ; Lechler, Armin ; Verl, Alexander: Towards Real-Time Capable Simulations with a Containerized Simulation Environment. In: 2018 25th International Conference on Mechatronics and Machine Vision in Practice (M2VIP), 2018 25th International Conference on Mechatronics and Machine Vision in Practice (M2VIP), 2018, S. 1–6
  - BibTeX
  - Link
  BibTeX
  @inproceedings{8600827, abstract = {The handling of non-rigid objects, such as cables, with industrial robots is characterized by nonlinear, timedependent and location-dependent equations for the object's behavior. To manipulate them in a desired way, real-time capable simulations for control that are able to run in cycle-time are required as well as highly accurate and detailed simulations for path planning. We introduce a common simulation environment that is wrapped in a container with the advantages of including all dependencies and being easy to set up and orchestrate. Automated code generation is used to set up a standardized communication and virtualization in a Docker container such that only the simulation itself has to be provided by a user. The advantage of containerization, compared to the simulation running natively, is finally demonstrated with a sample robot simulation under heavy CPU load.}, author = {Hinze, Christoph and Tasci, Timur and Lechler, Armin and Verl, Alexander}, booktitle = {2018 25th International Conference on Mechatronics and Machine Vision in Practice (M2VIP)}, doi = {10.1109/M2VIP.2018.8600827}, month = {11}, pages = {1-6}, title = {Towards Real-Time Capable Simulations with a Containerized Simulation Environment}, url = {https://ieeexplore.ieee.org/document/8600827/}, year = 2018 }
  Link
  https://ieeexplore.ieee.org/document/8600827/
2017
1. Ellwein, Carsten ; Lechler, Armin ; Riedel, Oliver: Cloud-Service zur Beauftragung und Steuerung von Fertigungssystemen: Vorbehalte und Erwartungen der Industrie: Konferenzbeitrag. In: Digital Transformation Convention, Digital Transformation Convention : WEKA Fachmedien, 2017
  - BibTeX
  BibTeX
  @conference{xen.17a, address = {München}, author = {Ellwein, Carsten and Lechler, Armin and Riedel, Oliver}, booktitle = {Digital Transformation Convention}, eventdate = {24.10. - 25.10.2017}, eventtitle = {Digital Transformation Convention. Robotik, Big Data, KI & intelligente Systeme}, number = 1, publisher = {WEKA Fachmedien}, title = {Cloud-Service zur Beauftragung und Steuerung von Fertigungssystemen: Vorbehalte und Erwartungen der Industrie: Konferenzbeitrag}, venue = {München}, year = 2017 }

Armin Lechler

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