基于小偏置碰撞车辆前端结构的改进设计  

Improved Design of Vehicle Front-end Structure Based on Small Offset Collision

作　　者：崔宏伟 郝琪 刘正午 梅佳炜 Cui Hongwei;Hao Qi;Liu Zhengwu;Mei Jiawei(School of Automotive Engineering,Hubei University of Automotive Technology,Shiyan 442002,China)

机构地区：[1]湖北汽车工业学院汽车工程学院,湖北十堰442002

出　　处：《湖北汽车工业学院学报》2022年第2期1-4,8,共5页Journal of Hubei University Of Automotive Technology

基　　金：国家自然科学基金(11502075);湖北省重点实验室创新基金(2015XTZX0418)。

摘　　要：为提高小偏置碰撞下整车的耐撞性,对某微型电动车前端结构进行了优化设计。在可操作空间延长防撞横梁长度的20%,在前纵梁新增>形结构件,并对整车进行64 km·h^(-1)正面小偏置碰撞工况仿真分析。改进后前纵梁吸能量提高了128.4%,整车吸能量提高了26.3%,乘员加权综合损伤值降低50%。To improve the capacity for bearing crash of the whole vehicle under small offset collision,the front-end structure of a micro electric vehicle was optimized. The length of the anti-collision beam was extended by 20% in the operable space, and a > structural part was installed to front longitudinal beam. The whole vehicle was simulated and analyzed under the frontal small offset collision condition with the speed of 64 km·h^(-1). The results show that the energy absorption of front longitudinal beam increases by 128.4%, the energy absorption of the vehicle increases by 26.3%, and the weighted injury criterion of the occupant decreases by 50%.

关 键 词：小偏置碰撞 微型电动车 前纵梁 吸能 

分 类 号：U467.14[机械工程—车辆工程]