基于小偏置碰撞的轿车车身优化设计  

Body Optimization of a Sedan Based on Small Overlap Impact

作　　者：梁锐 胡远志[2] 刘西[2] 张治龙 唐学帮 LIANG Rui;HU Yuanzhi;LIU Xi;ZHANG Zhilong;TANG Xuebang(School of Automobile and Traffic Engineering,Guilin University of Aerospace Technology,Guilin 541004,China;Key Laboratory of Advanced Manufacture Technology for Automobile Parts,Ministry of Education,Chongqing University of Technology,Chongqing 400054,China)

机构地区：[1]桂林航天工业学院汽车与交通工程学院,广西桂林541004 [2]重庆理工大学汽车零部件先进制造技术教育部重点实验室,重庆400054

出　　处：《重庆理工大学学报（自然科学）》2020年第8期55-62,共8页Journal of Chongqing University of Technology：Natural Science

基　　金：重庆市基础与前沿研究计划资助项目(cstc2015jcyj A00048)。

摘　　要：为了研究某轿车的小偏置碰撞结构耐撞性,根据美国公路安全保险协会(IIHS)的相关规定建立了某轿车的小偏置碰撞有限元模型。基于仿真结果总结该轿车结构耐撞性存在的问题,评估其小偏置碰撞结构耐撞性评级为"差"。从结构件优化设计和悬架系统安全性设计2个角度提出了该轿车的小偏置碰撞结构耐撞性优化方案。仿真结果表明:该轿车乘员舱侵入量显著降低,其结构耐撞性评级提升至"良"。该结果证明了优化方案的可行性。In this paper,a small overlap impact finite element model was established according to the Insurance Institute for Highway Safety(IIHS)evaluation rating protocol,to study the crashworthiness of a sedan in small overlap impact.Then,according to simulation results,the problems of its structure were summarized,and the crashworthiness rating of the sedan was concluded as poor.The structure optimization was proposed through the structural design and suspension system safety design.The simulation results of the modified vehicle show that the intrusion was decreased obviously and the crashworthiness evaluation rating of the sedan was upgraded to acceptable which confirms the effectiveness of the optimization.

关 键 词：车身优化 轿车 小偏置碰撞 有限元模型 结构耐撞性 

分 类 号：TQ171.77[化学工程—玻璃工业]