计算力学学报Issue(4)：474-479,6.DOI:10.7511/jslx201404010
考虑车辆高速和低速耐撞性的多目标优化设计
Multi-objective optimization and design considering automotive high-speed and low-speed crashworthiness
摘要
Abstract
The main purpose of the design in frontal high-speed crashworthiness is to ensure the safety of occupants and minimize the passengers body damage .Meanwhile ,in the frontal low-speed crashworthi-ness design ,it requests to reduce automotive collision damage and possess good economic performance in the collision damage repair .According to the characteristics above ,the vehicle frontal crashworthiness of high-speed and low-speed positive crashworthiness combined ,and considering the lightweight of automo-bile body parts ,an optimization design method is proposed .That is ,thicknesses of frontal bumper ,crash-box inner and outer plates ,frontal longitudinal beam internal and external plates are selected as five de-sign variables ,and the energy of frontal longitudinal beam absorbed in the low-speed collision is taken as the basis of w hether the large deformation ,the agent model and genetic algorithm are used to calculate . Finally the method had been applied to a vehicle crashworthiness design .关键词
高速耐撞性/低速耐撞性/轻量化/多目标优化Key words
high-speed crashworthiness/low-speed crashworthiness/light weight/multi-objective optimi-zation分类
数理科学引用本文复制引用
姜潮,邓善良..考虑车辆高速和低速耐撞性的多目标优化设计[J].计算力学学报,2014,(4):474-479,6.基金项目
国家自然科学优秀青年基金（51222502）；国家自然科学基金（11172096）；教育部新世纪优秀人才支持计划（NCET-11-0124）；湖南省杰出青年基金（14JJ1016）资助项目． （）
