Optimal Design of Passenger Car and Truck Rear Crash Compatibility
Bai Zhong-hao1; Jiang Bin-hui 1; Zhang Qian-bin1; Wen Jia-wang2; Cao Li-bo1
1 The State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, Hunan University, Changsha, Hunan, 410082;2 Highway Traffic Police Detachment of Hunan Province, Changsha, Hunan, 410001
Abstract：A patented truck rear crash protective structure was designed based on crash compatibility .A finite element model of passenger Car - truck rear-end collision of this structure was built and validated in crash test. In order to improve its compatibility with passenger car, two optimized objective functions of SAE and DR were proposed According to the established optimized design parametric variables and range, orthogonal design test method was used to design16 groups of parameters and calculated with finite element simulation respectively. Then effective factors were analysed for two objectives. Finally, in order to verify the crash compatibility of the optimized protective structure, whole vehicle rear crash test was carried out.
2011, Vol. 30 
