微客车架结构抗撞性能的分析与优化研究  

Crashworthiness analysis and optimization for chassis frame structure of mini-bus

作　　者：赵婷婷[1] 王军杰[1] 

机构地区：[1]上海交通大学CIMS研究所,上海200240

出　　处：《机械设计与制造》2011年第6期73-75,共3页Machinery Design & Manufacture

摘　　要：通过有限元分析软件LS-DYNA进行碰撞仿真分析,研究了某新开发的微型客车的100%正面碰撞性能。根据相应的国家正碰法规CMVDR294和GB 11551-2003对仿真结果进行评价,发现正碰仿真中车架变形量、车门框变形量以及前壁板入侵量过大,不满足设计要求。针对上述问题,结合车身具体结构特性提出了车架结构优化方案。采用仿真技术进行优化方案的筛选和验证。验证结果表明优化方案有效地提高了车身、车架结构的抗撞性能。为此类微型客车正面碰撞性能的分析与优化提供方法和理论基础。The front crash simulation based on LS-DYNA software is built to analyze the structural crashworthiness of mini-bus,which result evaluated according to the national frontal crash standard CMVDR294 and GB 11551-2003,indicates that the deformation of the frame,doorframe and front panel are too excessive in the simulation to meet the design requirements.In order to improve the crashworthiness of the bus,the optimization plans about the frame structure are proposed based on the structure characteristics of the body,which are selected and verified by simulation that the crashworthiness of the frame is enhanced efficiently.It provides approach and theoretical reference for crashworthiness analysis and design optimization of the mini-bus structure.

关 键 词：微型客车 正面碰撞 CAE 车架结构优化 

分 类 号：TH16[机械工程—机械制造及自动化] U463.32[机械工程—车辆工程]