Investigation, optimal design and uncertainty analysis of crash- Absorbing, extruded aluminum structures

Erich Josef Wehrle, Q. Xu, H. Baier

Research output: Contribution to journalConference articlepeer-review

7 Scopus citations

Abstract

To absorb the energy of an automotive crash, extruded aluminum sections can be used in the so-called crumple zone. The dynamic impact loads of these incidents are uncertain from their nature. Accordingly, the derived load collectives for the design of crashworthiness-relevant structures are imprecise and vague. First, an investigation is conducted on different triggering geometry for crash-absorbing longitudinal members. An adaptive surrogate optimization method is used to increase efficiency in design optimization. Uncertainty analysis using a fuzzy method is then employed to access the scattering of the structural responses at the optimal design. These methods are shown on a front crash system of extruded aluminum sections.

Original languageEnglish
Pages (from-to)27-32
Number of pages6
JournalProcedia CIRP
Volume18
DOIs
StatePublished - 1 Jan 2014
Event1st International Conference on Manufacture of Lightweight Components, ManuLight2014 - Dortmund, Germany
Duration: 3 Apr 20144 Apr 2014

Keywords

  • Adaptive surrogating
  • Crash simulation
  • Extruded aluminum sections
  • Fuzzy analysis
  • Structural design optimization
  • α-level optimization

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