汽车后下部防护装置碰撞相容性因素分析与结构改进  

Impact Compatibility Factor Analysis and Structure Improvement on Vehicle Rear Underrun Protection Device

作　　者：马瑞雪[1] 周从荣 王欣[1] 

机构地区：[1]重庆车辆检测研究院国家客车质量监督检验中心,重庆401122

出　　处：《客车技术与研究》2015年第5期26-28,33,共4页Bus & Coach Technology and Research

基　　金：国家质量监督检验检疫总局科研计划项目(201310116)

摘　　要：分析确定追尾事故中碰撞相容性的影响因素,对某商用货车的后防护装置进行碰撞性能仿真分析,通过TOSCA拓扑优化软件设计新型后下部防护装置。通过CAE仿真分析和实车试验表明,改进后的后下部防护装置满足GB 11567.2-2001的动态试验要求,其阻挡及吸能功能有显著提高。The authors analyze the influence factors of impact compatibility in the rear- end crash, simulate the collision performance of a truck rear underrun protection device, and through the TOSCA topology optimization software to design a new type of rear underrun protection device. The simulation analysis and the real vehicle test show that the improved rear underrun protection device meet the requirements of GB 11567.2- 2001, and its block and energy absorption functions are also improved obviously.

关 键 词：后防护装置 碰撞相容性 仿真分析 优化设计 

分 类 号：U467.14[机械工程—车辆工程]