TITLE:
Application of Improved RSM in the Optimization of Automotive Frontal Crashworthiness
AUTHORS:
Chunke Liu, Jianxing Li, Xiaojun Xu
KEYWORDS:
Automobile Safety, Frontal Crash, Finite Element Analysis, Response Surface Method (RSM), Optimization Design
JOURNAL NAME:
Journal of Transportation Technologies,
Vol.6 No.3,
April
28,
2016
ABSTRACT: Based on the vehicle front crash finite element analysis, it shows that there is a large acceleration, so it needs further optimization. In order to improve the performance of vehicle collision, eight parts were selected which have large impact for the result, its thickness as design variables to the right of the B-pillar acceleration peak of optimization goal; 17 sample points were selected by Latin hypercube sampling method. Many structure parameters are optimized using sequential quadratic program (SQP) based on the surrogate model. The results show that the improved RSM has high accuracy; the right B-pillar acceleration reduced approximately 22.8%, reached the expected objective and was more conducive to the occupant safety.