Transactions of Materials and Heat Treatment

Title：Optimization design and analysis of crash performance for flexible roll forming auto parts

Authors： Jia Fanghui Yan Yu Wang Haibo Chen Zhengyang

Unit： North China University of Technology

KeyWords： safety parts with variable cross-section ABAQUS/ATOM FEM shape optimization

ClassificationCode：U461.91

year,vol(issue):pagenumber：2014,39(8):135-139

Abstract：

A new optimization design method for auto safety parts was put forward.According to the load distribution of safety parts when crashing and based on the module function of ABAQUS/ATOM，the crash for variable sections of safety parts was simulated and the structure features of safety parts were optimized，which makes the safety parts have lower weight and stronger capacity of energy absorption. By comparing the capacity of energy absorption and deformation before and after optimization, the optimized safety parts with energy absorption improved by 31.16% and lower weight are obtained. Finally, the energy absorption situation of optimized parts were verified through changing crashing speed, the results show that the energy absorption capacity of optimized parts is improved under higher crashing speed. But the energy absorption effect is not obvious under too high crashing speed.

Funds：

国家自然科学基金资助项目(51205004)；国家科技支撑计划项目(2011BAG03B03)

贾方辉(1989-)，男，硕士研究生

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