Automotive Crashworthiness Optimization Using Energy Flow Based Variable Screening

Li Feng Jiang; Dong Xiang; Duo Zeng; Hong Lei Wang; Guang Hong Duan

doi:10.4028/www.scientific.net/KEM.450.133

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HomeKey Engineering MaterialsKey Engineering Materials Vol. 450Automotive Crashworthiness Optimization Using...

Automotive Crashworthiness Optimization Using Energy Flow Based Variable Screening

Abstract:

A variable screening method based on energy flow analysis is provided for significant variables selection in crashworthiness optimizing. Two quantities, significance and specific energy absorption, are used to screen design variables. These quantities are calculated from energy relation matrix and energy absorption of parts. Energy relation matrix is built from finite element crash simulation result to describe energy flow path in parts during impact. The method is applied in the case of a car engine room under frontal impact. Optimization for lightweight using response surface method is performed on the reduced variable set at a relatively low computational cost.

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Periodical:

Key Engineering Materials (Volume 450)

Pages:

133-136

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.450.133

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Online since:

November 2010

Authors:

Li Feng Jiang, Dong Xiang, Duo Zeng, Hong Lei Wang, Guang Hong Duan

Keywords:

Car Crashworthiness, Energy Flow Analysis, Structure Design

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