Staff

DLR German Aerospace Center
Institute of System Dynamics and Control

Personal Information (CV)

Dr. Dirk Zimmer is team leader for aircraft energy system in the Institute of System Dynamics and Control. He received his PhD degree at the Department of Computer Science of the Swiss Federal Institute of Technology (ETH). Also, he is lecturer at the Institute of Computer Science at the Technical University of Munich (TUM) and member of the Modelica Association.

Teaching

I am lecturer of the course: Virtual Physics at the TUM.

(Permanent Version of the course)
 

Research Interests

• Design and implementation of object-oriented modeling languages (e.g. Modelica)
• Aircraft energy systems in general and thermal management in particular
• Robust Modeling of comple systems in general and of mechancal and thermal systems in particular
• Modeling and simulation of variable structure systems

Journal Articles

• Zimmer, D. N. Weber, M. Meißner (2022) The DLR ThermoFluid Stream Library.  MDPI Electronics - Special Issue.
• Zimmer, D., M. Meißner, N. Weber, (2021) Robust Simulation of Stream-Dominated Thermo-FluidSystems: From Directed to Non-Directed Flows. SNE Simulation Notes Europe, 31 (4), pp 177-184
• Zimmer, D. (2020), Robust Object-Oriented Formulation of Directed Thermofluid Stream Networks . Mathematical and Computer Modelling of Dynamic Systems, Vol 26, Issue 3.
• Pollok, Alexander and Klöckner, Andreas and Zimmer, Dirk (2019)Psychological aspects of equation-based modelling. Mathematical and Computer Modelling of Dynamical Systems, 25 (2), Seiten 115-138. Taylor & Francis
• Reiner, M., D. Zimmer (2017) Object-oriented modelling of wind turbines and its application for control design based on nonlinear dynamic inversion. Mathematical and Computer Modelling of Dynamic Systems, Vol 23, Issue 3.
• Zimmer, D. (2016) Equation-Based Modeling with Modelica –
  Principles and Future Challenges. Simulation News Europe. Vol. 26, No. 2.
• Zimmer, D. (2013), A New Framework for the Simulation of Equation-Based Models with Variable Structure SIMULATION: Transactions of the Society for Modeling and Simulation International, Online-First, May 21, 2013
• Zimmer, D. and M. Otter (2010), Real-Time Models for Wheels and Tires in an Object-Oriented Modelling Framework
  Journal of Vehicle System Dynamics. Volume 48, Issue 2, pp. 189-216 .
• Zimmer, D. (2008) Multi-Aspect Modeling in Equation-Based Languages,
  Simulation News Europe, Volume 18, No. 2, pp. 54-61.
• Zimmer, D. and F.E. Cellier (2007), The Modelica Multi-bond Graph Library,
  Simulation News Europe, Volume 17, No. 3/4, pp. 5-13.
• Zimmer, D. (2007) Enhancing Modelica towards variable structure systems,
  Simulation News Europe, Volume 17, No. 2, pp. 23-28.

Software

• The DLR Thermofluid Stream Library
• Planar Mechanics Modelica Library

Awards

• 2021:Modelica Library Award (1st prize together with Michael Meissner and Niels Weber) for the DLR ThermoFluid Stream Library
• 2015:Modelica Library Award (2nd prize together with Andreas Klöckner, Frans van der Linden, and Martin Otter) for the Advanced Noise Library
• 2011: ETH Medal for an outstanding PhD Dissertation
• 2006: Modelica Library Award (1st prize) for the MultiBondLib library
• 2006: ETH Medal for an outstanding Master Thesis
• 2004: Best student-project award for the course: Physically based simulation in computer graphics

Affiliations

• Since 2019: Member of ASIM
• In 2017: General chair of the EOOLT 2017 workshop in Munich
• In 2016: Program chair of the EOOLT 2016 workshop in Milano
• In 2012: Program chair of the 9th International Modelica Conference
• Since 2010: Member of the Modelica Association
• Since 2010: Program committee member of the annual workshop: Equation-Based Object-Oriented Languages and Tools

Keynotes and Invited Talks

• D. Zimmer (2022), Mathematical modeling in Modelica: The art of compressing reality. Keynote at the North American Modelica Conference 2022, Dallas Texas
• D. Zimmer (2022), Robuste Modellierung und informationsverlustbehaftete Idealisierung in objekt-orientierter Modellierung physikalischer Systeme, Keynote at ASIM 2022 Symposium Simulationstechnik, Vienna, Austria.
• T. Bellmann, D. Zimmer (2020), From industrial applications to electric flight: Modelica as key enabler Keynote at Asian Modelica Conference 2020
• D. Zimmer (2017), Electric Flight Trends in Modelling and Simulation, Invited talks at ExpoAir, Munich, Germany.
• D. Zimmer (2017), System modelling of thermo-fluids – challenges and trends from the perspective of aviation. Invited talks at Lawrence Berkeley National Laboratory, Energy Technology Area, Berkeley, California, USA
• D. Zimmer (2016), The Modelica & FMI Technology: Modelling and simulating cyber-physical systems for smart technologies, Keynote at the Inaugural event for the center of Computational Complex Systems, TU Wien, Austria
• D. Zimmer (2016), Object-oriented modelling and simulating cyber-physical systems, Invited talks at Politecnico Milano, Italy
• D. Zimmer (2015), Model-Based Design of Aircraft Energy Systems using Methods for Specification, Control and Safety Analysis. Invited Talk at the IQPC More Electric Aircraft Conference, Hamburg, Germany
• D. Zimmer (2014), Planar Mechanics Library and Simulation, Keynote at the OpenModelica Workshop, 2014, Linköping, Sweden
• D. Zimmer (2011), Equation-Based Modeling of Variable Structure Systems, Invited Talk at the Computer Science Colloquium, TU Berlin, Germany

Further Publications

• Eschenbacher, P, D. Zimmer, N. Weber, (2022) First Principle Model of an Electric ECS Pack. IOP Publishing. 11th EASN 2021, 01.-03. Sept. 2021, Salerno, Italy
• Zimmer, D., M. Meissner, N. Weber (2021) The DLR Thermofluid Stream Library. International Modelica Conference, Linköping Sweden.
• Zimmer D, Eschenbacher P, Weber N (2020) Real-Time Simulation of an Aircraft Electric Driven Environmental Control System for Virtual Testing Purposes. Proceedings of the Asian Modelica Conference, Tokyo, Japan
• Zimmer, D. (2019) Are Differential-Algebraic Equations the Right Tool to Model Physical Systems? EOOLT 2019 Workshop, Nov. 5 Berlin, Germany.
• Zimmer, Dirk (2019): Robust Simulation of Stream-Dominated Thermo-Fluid
  Systems: From Unidirectional to Bidirectional Applications. EUROSIM 2019, Logrono, Spain.
• Zimmer, Dirk (2019) Towards Hard Real-Time Simulation of Complex Fluid Networks. In: Proceedings of the 13th International Modelica Conference, 04.-06. Mär. 2019, Regensburg, Deutschland
• Otter, Martin und Elmqvist, Hilding und Zimmer, Dirk und Laughman, Christopher (2019) Thermodynamic Property and Fluid Modeling with Modern Programming Language Construct. In: Proceedings of the 13th International Modelica Conference, 4.-6. Mrz 2019, Regensburg, Deutschland
• Arzberger, Max Josef und Zimmer, Dirk (2019) A Modelica-based environment for the simulation of hybrid-electric propulsion systems. In: Proceedings of the 13th International Modelica Conference, , 04.-06. Mär. 2019, Regensburg, Deutschland
• Kerling, Ines und Zimmer, Dirk (2018) A yaw control Approach using economic aspects. 5th International Conference Contemporary Problems of Thermal Engineering, 18.-21. Sep. 2018, Gliwice, Polen.
• Zimmer, D., D. Bender, A. Pollok (2018) Robust Modeling of Directed Thermofluid Flows in Complex Networks. Proceedings of the 2nd Japanese Modelica Conference, Tokyo, Japan
• Pollok A., D. Zimmer (2018) The Cryo-Lib - Modelling Superconductors with Modelica Proceedings of the 2nd Japanese Modelica Conference, Tokyo, Japan
• Pollok, A. A. Klöckner, D. Zimmer (2017) Representations of equation-based models are not created equal. Proceedings of the 8th International Workshop on Equation-Based Object-Oriented Languages and Tools (EOOLT) , Wessling, Germany
• Schlabe, D., D. Zimmer, A. Pollok (2017), Exploitation strategies of cabin and galley thermal dynamics. SAE Aerotech, Texas, USA
• Pollok, A., D. Bender, I. Kerling, D. Zimmer, (2017) Rapid development of an aircraft cabin temperature regulation concept. Proceeding of the 12th International Modelica Conference, Prague, Czech Republic.
• Zimmer, D. (2016), Model-based design methods for aircraft energy systems: lessons learned and future challenges. Greener Aviation 2016, Brussels, Oct 11-13.
• Reiner, M., Zimmer, D. (2015), Nonlinear Dynamic Inversion Control for Wind Turbine Load Mitigation based on Wind Speed Measurement. Proceeding of the 11th International Modelica Conference, Paris, France.
• Elmqvist, H. Olsson, H., Goteman, A., Roxling, V., Pollok, A., Zimmer, D. (2015), Automatic GPU Code Generation of Modelica Functions. Proceeding of the 11th International Modelica Conference, Paris, France.
• Pollok, A., Zimmer, D., Casella, F. (2015), Fractional-Order Modelling in Modelica. Proceeding of the 11th International Modelica Conference, Paris, France.
• van der Linden, F., Klöckner, A., Zimmer, D. (2015),  Effects of Event-Free Noise Signals on Continuous-Time Simulation Performance IFAC-Paper Online, 7th Vienna International Conference on Mathematical Modelling, Vienna, Austria
• Zimmer, D. (2014), Handling infinitely fast processes in continuous system modeling, Proceedings of the 6th International Workshop on Equation-Based Object-Oriented Modeling Languages and Tools, Berlin, Germany
• Zimmer, D., M. Otter, H. Elmqvist, G. Kurzbach (2014), Custom Annotations: Handling Meta-Information in Modelica Proceedings of the 10th International Modelica Conference , Lund, Sweden
• Klöckner, A. F. van der Linden, D. Zimmer (2014), Noise Generation for Continuous System Simulation Proceedings of the 10th International Modelica Conference , Lund, Sweden
• Zimmer, D., T. Giese, M. Crespo, S. Vial (2014), Model Exchange in Industrial Practice
  Geener Aviation 2014, Brussels, Belgium
• Zimmer, D. (2013), Using Artificial States in Modeling Dynamic Systems: Turning Malpractice into Good Practice Proceedings of the 5th International Workshop on Equation-Based Object-Oriented Languages and Tools (EOOLT) , Nottingham, United Kingdom
• Schlabe, D. and D. Zimmer (2012), Model-Based Energy Management Functions for Aircraft Electrical Systems
  Proceedings of the SAE 2012 Power Systems Conference, Phoenix, Arizona, USA
• Schlabe, D., M. Sielemann, C. Schallert, D. Zimmer, M. Kuhn, Y. Ji, J. Bals (2012), Towards a Model-Based Energy System Design Process
  Proceedings of the SAE 2012 Power Systems Conference, Phoenix, Arizona, USA
• Zimmer, D. (2012), A Planar Mechanical Library for Teaching Modelica
  Proceedings of the 9th International Modelica Conference , Munich, Germany
• Zimmer, D. and D. Schlabe (2012), Implementation of a Modelica Library for Energy Management based on Economic Models
  Proceedings of the 9th International Modelica Conference , Munich, Germany
• Zimmer, D. (2012), A Reference-Based Parameterization Scheme for Equation-Based Object-Oriented Modeling Languages
  7th Vienna International Conference on Mathematical Modelling, Vienna, Austria
• Brembeck, J., M. Otter, D. Zimmer (2011), Nonlinear Observers for Electric Vehicles based on the Functional Mockup Interface
  Proceedings of the 8th International Modelica Conference , Dresden, Germany
• Zimmer, D. (2010), Towards Improved Class Parameterization and Class Generation in Modelica
  Proceedings of the 3rd International Workshop on Equation-Based Object-Oriented Languages and Tools (EOOLT) , Oslo, Norway
• Zimmer, D. (2010), Equation-Based Modeling of Variable Structure Systems
  PhD Dissertation, ETH Zürich, 219 pages.
• Zimmer, D. (2009), An Application of Sol on Variable-Structure Systems with Higher Index
  7th International Modelica Conference , Como, Italy
• Zimmer, D. (2009), Module-Preserving Compilation of Modelica Models
  7th International Modelica Conference , Como, Italy
• Andres, M., D. Zimmer, F. Cellier (2009), Object-oriented decomposition of tire characteristics based on semi-empirical models 7th International Modelica Conference , Como, Italy
• Schmitt, T., D. Zimmer, F. Cellier (2009), A Virtual Motorcycle Rider based on Automatic Controller Design 7th International Modelica Conference , Como, Italy
• Zimmer, D. (2008) Multi-Aspect Modeling in Equation-Based Languages,
  Proceedings of the 2nd International Workshop on Equation-Based Object-Oriented Languages and Tools (EOOLT), Paphos, Cyprus. Also published in: Simulation News Europe
• Zimmer, D. (2008) Introducing Sol: A General Methodology for Equation-Based Modeling of Variable-Structure Systems Proc. 6th International Modelica Conference, Bielefeld, Germany, Vol.1 pp. 47-56
• Dshabarow, F., Cellier, F., Zimmer, D. (2008) Support for Dymola in the Modeling and Simulation of Physical Systems with Distributed Parameters
  Proc. 6th International Modelica Conference, Bielefeld, Germany, Vol.2 pp. 683-690
• Zimmer, D. (2007) Enhancing Modelica towards variable structure systems,
  Proceedings of the 1st International Workshop on Equation-Based Object-Oriented Languages and Tools (EOOLT), Berlin, Germany, pp. 61-70. Also published in: Simulation News Europe
• Zimmer, D. and F.E. Cellier (2007), Impulse-bond Graphs,
  Proc. ICBGM 07, 8th SCS Intl. Conf. on Bond Graph Modeling and Simulation, San Diego, California, pp. 3-11.
• Zimmer, D. and F.E. Cellier (2006), The Modelica Multi-bond Graph Library,
  Proc. 5th International Modelica Conference, Vienna, Austria, Vol.2, pp.559-568. Also published in: Simulation News Europe
• Cellier, F.E. and D. Zimmer (2006), Wrapping Multi-bond Graphs: A Structured Approach to Modeling Complex Multi-body Dynamics, keynote presentation,
  20th European Conference on Modeling and Simulation, Bonn, Germany, May 29-31, 2006.
• Zimmer, D. (2006), A Modelica Library for MultiBond Graphs and its Application in 3D-Mechanics,
  Master Thesis at the Inst. of Computational Science, ETH Zürich, Zürich, Schweiz.

Editorial Work

• Bachmann, B., Zimmer, D.  (2017) Proceedings of the 8th International Workshop on Object-Oriented, Equation-Based Languages and Tools (EOOLT).
• Zimmer, D., R. Krenn (2016) Institute of System Dynamics and Control: Status Report 2012-2016
• Zimmer, D. Casella F. (2016) Proceedings of the 7th International Workshop on Object-Oriented, Equation-Based Languages and Tools (EOOLT).
• Otter, M., Zimmer, D. (2012),Proceedings of the 9th International Modelica Conference