Analysis of car crash simulation data with nonlinear machine learning methods

Bastian Bohn, Jochen Garcke, Rodrigo Iza-Teran, Alexander Paprotny, Benjamin Peherstorfer, Ulf Schepsmeier, Clemens August Thole

Research output: Contribution to journalConference article

Abstract

Nowadays, product development in the car industry heavily relies on numerical simulations. For example, it is used to explore the influence of design parameters on the weight, costs or functional properties of new car models. Car engineers spend a considerable amount of their time analyzing these influences by inspecting the arising simulations one at a time. Here, we propose using methods from machine learning to semi-automatically analyze the arising finite element data and thereby significantly assist in the overall engineering process. We combine clustering and nonlinear dimensionality reduction to show that the method is able to automatically detect parameter dependent structure instabilities or reveal bifurcations in the time-dependent behavior of beams. In particular we study recent nonlinear and sparse grid approaches, respectively. Our examples demonstrate the strong potential of our approach for reducing the data analysis effort in the engineering process, and emphasize the need for nonlinear methods for such tasks.

Original languageEnglish (US)
Pages (from-to)621-630
Number of pages10
JournalProcedia Computer Science
Volume18
DOIs
StatePublished - 2013
Event13th Annual International Conference on Computational Science, ICCS 2013 - Barcelona, Spain
Duration: Jun 5 2013Jun 7 2013

Keywords

  • Analysis of FEM data
  • Car crash simulation
  • Machine learning
  • Nonlinear dimensionality reduction
  • Sparse grids

ASJC Scopus subject areas

  • Computer Science(all)

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    Bohn, B., Garcke, J., Iza-Teran, R., Paprotny, A., Peherstorfer, B., Schepsmeier, U., & Thole, C. A. (2013). Analysis of car crash simulation data with nonlinear machine learning methods. Procedia Computer Science, 18, 621-630. https://doi.org/10.1016/j.procs.2013.05.226