客车蒙皮对侧翻碰撞仿真结果的影响  

Influence of Bus Skin on Rollover Crash Simulation Outcomes

作　　者：李强[1] 申福林[2] 于宏伟[3] 朱丽莎[4] 韩东[1] 

机构地区：[1]交通运输部公路科学研究院,北京100088 [2]长安大学汽车学院,陕西西安710064 [3]中国兵器科学研究院,北京100089 [4]东北大学机械工程与自动化学院,辽宁沈阳110004

出　　处：《公路交通科技》2011年第2期149-153,共5页Journal of Highway and Transportation Research and Development

基　　金：国家科技支撑计划项目(2009BAG13A04);交通运输部西部交通建设科技项目(2009318000043)

摘　　要：参照ECE/R66法规和我国GB/T17578-1998法规中的相关试验要求,建立了某6120型高床大客车车身骨架有限元模型和带蒙皮的整车车身有限元模型,通过车身立柱变形量和能量吸收情况两项指标,对比分析客车蒙皮对侧翻碰撞仿真分析结果的影响程度。仿真分析结果表明:客车蒙皮在侧翻碰撞仿真分析中对车身前后端立柱的变形量影响程度较大,故在利用有限元仿真分析方法检验客车上部结构强度时,不能忽略客车蒙皮的影响。According to the test requirements stipulated in ECE/R66 and GB/T17578-1998,a finite element model of body frame and a finite element model of body with skin for Type 6120 high-bed bus were established,then the influences of bus skin on the simulation result of rollover crash were comparatively analysed based on body column deformation and energy absorption.The simulation result shows that bus skin has a greater influence on the deformation of front and rear body columns in rollover crash simulation.Thus,the impact of bus skin cannot be ignored in testing strength of bus superstructure by finite element analysis method.

关 键 词：汽车工程 侧翻碰撞 仿真精度 有限元分析 客车蒙皮 

分 类 号：U463.822[机械工程—车辆工程]