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Technical University of Munich

Dr.-Ing. Patrick Langer

Research Associate

Modeling in vibroacoustics

This research concentrates on virtual prototyping of vibroacoustic problems. The case study is the engine-transmission unit in a vehicle, with a special focus on bolted assemblies. An assembly is the combination of monolith components that are joined together. The joint area is a vulnerable point in structural dynamics and has to be carefully investigated. Therefore, the vibroacoustic analysis of such complex structures must be done in two parts: ‘component’ and ‘assembly’. For each part, it is necessary to find a simplified model that is computationally inexpensive while providing sufficiently accurate results. Experimental tests are constantly performed to verify the numerical models and the proposed method.

Quelle: BFS-Projekt: INNOMOVA
Quelle: BFS-Projekt: INNOMOVA
Quelle: BFS-Projekt: INNOMOVA
Quelle: BFS-Projekt: INNOMOVA
Quelle: BFS-Projekt: INNOMOVA
Quelle: BFS-Projekt: INNOMOVA

Publications

2023

  • Wagner, Philipp; Langer, Patrick; Mäder, Marcus; Marburg, Steffen: Challenges in experimental and numerical characterization of passenger seat vibration. Proceedings of the International Congress on Sound and Vibration - ISCV, 2023 more… BibTeX
  • Wagner, Philipp; Langer, Patrick; Mäder, Marcus; Marburg, Steffen: Experimental and simulation‐based modeling of a vehicle seat. PAMM, 2023 more… BibTeX Full text ( DOI )

2021

  • Langer, Patrick; Jelich, Christopher; Guist, Christian; Peplow, Andrew; Marburg, Steffen: Simplification of Complex Structural Dynamic Models: A Case Study Related to a Cantilever Beam and a Large Mass Attachment. Applied Sciences 11 (12), 2021, 5428 more… BibTeX Full text ( DOI )

2019

  • Geweth, Christian A.; Langer, Patrick; Saati, Ferina; Sepahvand, Kheirollah; Marburg, Steffen: INFLUENCE OF DIFFERENT TYPES OF SUPPORT ON EXPERIMENTALLY DETERMINED DAMPING VALUES. Proceedings of the 3rd International Conference on Uncertainty Quantification in Computational Sciences and Engineering (UNCECOMP 2019), Institute of Structural Analysis and Antiseismic Research School of Civil Engineering National Technical University of Athens (NTUA) Greece, 2019 more… BibTeX Full text ( DOI )
  • Kiesel, Theo; Langer, Patrick; Marburg, Steffen: Numerical Study on the Effect of Gravity on Modal Analysis of Thin-Walled Structures. Acta Acustica united with Acustica 105 (3), 2019, 545-554 more… BibTeX Full text ( DOI )
  • Schneider, A.; Hoppe, A.; Langer, P.; Guist, C.; Marburg, S.: Einfluss von Vernetzungsparametern auf die Modalanalyse geometrisch unterschiedlich komplexer Strukturen mittels der Finite-Elemente-Methode. Fortschritte der Akustik - DAGA 2019, 45. Deutsche Jahrestagung für Akustik, 18.-21. März 2019 in Rostock, DEGA, 2019Rostock,Deutschland more… BibTeX

2018

  • Hoppe, K. -A. H.; Langer, P.; Marburg, S.: Efficient bolted joint modeling for industrial applications - empirical and analytical approaches. Proceedings of International Conference on Noise and Vibration Engineering and International Conference on Uncertainty in Structural Dynamics, KU Leuven, 2018Leuven more… BibTeX
  • Langer, P.; Sepahvand, K.; Guist, C.; Bär, J.; Peplow, A.; Marburg, S.: Matching experimental and three dimensional numerical models for structural vibration problems with uncertainties. Journal of Sound and Vibration 417, 2018, 294-305 more… BibTeX Full text ( DOI )
  • Langer, Patrick; Hoppe, Alexander; Guist, Christian; Marburg, Steffen: From Theory to Three-Dimensional Finite Element Models: An Innovative Method for Validation. SAE Technical Paper Series, SAE International, 2018Graz, Austria more… BibTeX Full text ( DOI )
  • Langer; P.; Schmid,J. M.; Guist,C.; Marburg,S.: Einfluss von Dichtungen auf das vibroakustische Verhalten von verschraubten Strukturen in Experiment und Simulation. Fortschritte der Akustik - DAGA 2018 - 44. JAHRESTAGUNG FÜR AKUSTIK,, DEGA e.V., 201819.-22. MäRZ 2018, München more… BibTeX

2017

  • Geweth, C. A.; Langer, P.; Sepahvand, K.; Marburg, S.: Investigation of various damping measurement techniques. The Journal of the Acoustical Society of America 141 (5), 2017, 3576-3576 more… BibTeX Full text ( DOI )
  • Langer, P.; Guist, C.; Marburg, S.: Experimentelle und numerische Modalanalyse an verschraubten Strukturen. Fortschritte der Akustik - DAGA 2017 : 43. Jahrestagung für Akustik, 06. bis 09. März 2017 in Kiel, DEGA e.V., 2017 more… BibTeX
  • Langer, P.; Guist, C.; Sepahvand, K.; Marburg, S.: Modal analysis of vehicle engine-transmission unit: Finite element model and experimental investigation. The Journal of the Acoustical Society of America 141 (5), 2017, 3908-3908 more… BibTeX Full text ( DOI )
  • Langer, P.; Jelich, C.; Hoppe, A.; Schneider, A.; Guist, C.; Sepahvand, K. and S. Marburg: Finite element model for modal analysis of engine-transmission unit: numerical and experimental investigations. Proceedings of the 46th International Congress and Exposition on Noise Control Engineering, 2017HongKong more… BibTeX
  • Langer, P.; Maeder, M.; Guist, C.; Krause, M.; Marburg, S.: More Than Six Elements Per Wavelength: The Practical Use of Structural Finite Element Models and Their Accuracy in Comparison with Experimental Results. Journal of Computational Acoustics, 2017, 1750025 more… BibTeX Full text ( DOI )
  • Langer, P.; Sepahvand, K.; Guist, C.; Marburg, S.: Finite element modeling for structural dynamic analysis of bolted joints under uncertainty. Procedia Engineering 199, 2017, 954 - 959 more… BibTeX Full text ( DOI )
  • Langer, Patrick; Hoppe, Alexander; Guist, Christian; Marburg, Steffen: Bolted Joints: Eigenfrequencies from non-linear FE-models and experimental modal analysis. INTER-NOISE and NOISE-CON Congress and Conference Proceedings 255 (5), 2017, 2967-2977 more… BibTeX

2016

  • Langer, P.; Guist, C.; Marburg, S.: Effiziente Metriken zur Modellbildung von Finite-Element-Modellen mit der Betrachtung von Unsicherheiten und dem Vergleich zur experimentellen Modalanalyse. Fortschritte der Akustik - DAGA 2016 : 42. Jahrestagung für Akustik, 14. bis 17. März 2016 in Aachen, DEGA e.V, 2016 more… BibTeX
  • P. Langer, C. Guist; Marburg, S.: Efficient modeling of vibroacoustic systems with consideration of and comparison with experimental measurements. Proceedings of the 45th International Congress and Expositionon Noise Control Engineering, 201645th International Congress and Exposition on Noise Control Engineering: Towards a Quieter Future, INTER-NOISE 2016; Hamburg; Germany; more… BibTeX

2015

  • Langer, P.; Sepahvand, K.; Krause, M.; Marburg, S.: Experimentally uncertainty quantification in numerical and analytical beam models. , Institute of Noise Control Engineering, 2015 more… BibTeX
  • Langer, P.; Sepahvand, K.; Marburg, S.: Einfluss und Diskussion von Unsicherheiten auf das dynamische Verhalten von einfachen Strukturen in Simulation und Experiment. Fortschritte der Akustik, DEGA e.V, 2015 more… BibTeX
  • Langer, P.; Sepahvand, K.; Marburg, S.: Uncertainty quantification in numerical and experimental models of structural vibration problems. Proceedings of Internoise 2015, 2015Internoise more… BibTeX
  • Langer, Patrick; Sepahvand, Kheirollah; Krause, Michael; Marburg, Steffen: Simple vibroacoustic systems - Influence of uncertainties in simulation and experiment. Proceedings of NOVEM 2015, 2015 more… BibTeX

2014

  • Langer, P.; Krause, M.; Sepahvand, K.; Marburg, S.: Experimentally uncertainty quantification in numerical and analytical beam models. Internoise and Noise Congress and Conference Proceedings, 2014 more… BibTeX
  • Langer, P.; Sepahvand, K.; Marburg, S.: Beschreibung und Diskussion von Unsicherheiten in der Modellbildung am Beispiel von scheinbar sehr einfachen Strukturen. , 2014 more… BibTeX
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