Lennart Frie

black: published, green: accepted for publication, orange: submitted for publication

• Frie, L.; Eberhard, P.: Efficient optimization of surrogate subsystems to approximate coupled mechanical systems.
• Frie, L.; Könecke, T.; Hanss, M.; Eberhard, P.: Possibilistic Uncertainty Quantification for Parametrically Reduced Models of Dynamic Systems with Many Inputs. In Proceedings of the 49th European Rotorcraft Forum, Bückeburg, 2023. [Link]
• Frie, L.; Dieterich, O.; Eberhard, P.: Surrogate Mass Optimization for Helicopter Vibration Tests. In Proceedings of the 11th ECCOMAS Thematic Conference on Multibody Dynamics, Lisbon (Portugal), 2023. [Link]
• Frie, L.; Eberhard, P.: On shift selection for Krylov subspace based model order reduction. Multibody System Dynamics, 2023.
  [DOI: 10.1007/s11044-022-09872-7]
• Könecke, T.; Hose, D.; Frie, L.; Hanss, M.; Eberhard, P.: Analysis of Mixed Uncertainty through Possibilistic Inference by using Error Estimation of Reduced Order Surrogate Models. In Proceedings of USD2022, Leuven (Belgium), 2022. [Link]
• Frie, L.; Dieterich, O.; Eberhard, P.: Parametric Model Order Reduction for Speed-Controlled Elastic Rotors. In Proceedings of ISMA2022, Leuven (Belgium), 2022. [Link]
• Frie, L.; Dieterich, O.; Eberhard, P.: Model Order Reduction for Elastic Multibody Systems with Fast Rotating Flexible Bodies. Proceedings of the 10th ECCOMAS Thematic Conference on Multibody Dynamics, Budapest (Hungary), pp. 432 - 443, 2021.
  [DOI: 10.3311/ECCOMASMBD2021-121]
• Frie, L.: Statistical Inference in Parametrically Reduced Surrogate Models of Mechanical Systems on the Basis of Possibility Theory, Masterthesis MSC-302. Stuttgart: Institute of Engineering and Computational Mechanics, 2020.

• March 7th, 2024: YMMOR Conference 2022, Münster, "Model Order Reduction for Partitioned Linear FSI Systems"
• September 7th, 2023: 49th European Rotorcraft Forum, Bückeburg, "Possibilistic Uncertainty Quantification for Parametrically Reduced Models of Dynamic Systems with Many Inputs"
• July 25th, 2023: ECCOMAS Multibody Dynamics Conference 2023, Lisbon, "Surrogate Mass Optimization for Helicopter Vibration Tests"
• July 17th, 2023: ITM Statusseminar, Hösbach, "Model Order Reduction of Mechanical Systems Used in Coupled Multi-Domain Simulations"
• March 22nd, 2023: 33rd Aeromechanics Workshop, Meudon (online), "Rotor Surrogate Mass Optimization Using Parametric Model Order Reduction"
• September 13th, 2022: ISMA Conference on Noise and Vibration, Leuven, "Parametric Model Order Reduction for Speed-Controlled Elastic Rotors"
• July 25th, 2022: ITM Statusseminar, Hösbach, "Toward Coupled Helicopter Simulations for Vibration Prediction"
• July 21st, 2022: YMMOR Conference 2022, Münster, "Model Order Reduction for Large Scale Mechanical Systems with Many Inputs Using the Example of a Helicopter Model"
• December 15th, 2021: ECCOMAS Multibody Dynamics Conference 2021, Budapest (online), "Model Order Reduction for Elastic Multibody Systems with Fast Rotating Flexible Bodies"
• November 26th, 2021: ITM Statusseminar, Monbachtal, "Model Order Reduction for Helicopters - Challenges and Approaches"
• October 12th, 2021: 30th Aeromechanics Workshop, Stuttgart, "Modeling of Elastic Multibody Systems with Rotating Bodies"
• September 23rd, 2021: GMA-Fachausschuss 1.30, "Modellbildung, Identifikation und Simulation in der Automatisierungstechnik", Salzburg, "Identifikation unsicherer Parameter in parametrisch reduzierten Ersatzmodellen mechanischer Systeme"

• Identification of non-measurable parameters of mechanical systems from experimental data using reduced order models. Institute of Engineering and Computational Mechanics, University of Stuttgart, 2024. (on-going)
  In co-supervision with Tom Könecke, M.Sc.
• Development and implementation of a multi-physics co-simulation environment with model order reduction using the example of a thermoelastic disc brake, Forschungsarbeit. Institute of Engineering and Computational Mechanics, University of Stuttgart, 2023. (on-going)
  In co-supervision with Johannes Rettberg, M.Sc.
• Modeling and model order reduction of parametric systems for identification of geometry parameters, Bachelor thesis. Institute of Engineering and Computational Mechanics, University of Stuttgart, 2023.
  In co-supervision with Manuel Vierneisel, M.Sc.
• Model Reduction of Connected Components of a Braking System and Experimental Validation, Master thesis.  Institute of Engineering and Computational Mechanics, University of Stuttgart, 2022.
  In co-supervision with Fabian Matter, M.Sc.
• Projection-Based Parametric Model Order Reduction for Modern Rotorcrafts, Bachelor thesis. Institute of Engineering and Computational Mechanics, University of Stuttgart, 2021.
  In co-supervision with Manuel Vierneisel, M.Sc.
• Investigations on the Applicability of Error Estimators for Possibilistic Inference in Parametrically Reduced Surrogate Models of Mechanical Systems, Master thesis. Institute of Engineering and Computational Mechanics, University of Stuttgart, 2021.
  In co-supervision with Dominik Hose, M.Sc.

• supervision of the seminar in Applied Mechanics II (ST 2024)
• supervision of experiment Robot with Flexible Links (ST 2021 - ST 2024)
• exercises and teaching assistant of the lecture Nonlinear Oscillations (WT 2020 - ST 2024)
• organization of post-exam review (WT 2020 - ST 2024)
• Vortragsübungen und Betreuung der Vorlesung Oscillations (ST 2024)

• maintenance and development of the MOR software MatMorembs
• maintenance and development of the MOR software Morembs++