大客车侧翻碰撞护栏事故仿真分析及改进  

Simulation and improvement of bus rollover against barrier

作　　者：王蕊[1] 张晓云[1] 冯浩[2] 陈建国[2] 

机构地区：[1]上海交通大学机械与动力学院,上海200240 [2]司法部司法鉴定科学技术研究所,上海200063

出　　处：《振动与冲击》2014年第6期40-43,共4页Journal of Vibration and Shock

基　　金：国家自然科学基金(60970049);上海市自然科学基金(13ZR1422300)

摘　　要：建立大客车与护栏有限元模型,仿真大客车侧翻碰撞护栏型交通事故,并与我国GB/T 17578-1998及欧盟ECE R66规定对比。仿真结果表明此类侧翻事故的损害程度远超规定;进而改进大客车侧面立柱材料及厚度,仿真验证表明,此方法可减小事故损失。可供设计人员参考。Finite element models of a bus and a barrier were established.By means of mathematical operation,one special type of traffic accident,a bus rolling over and colliding with barrier,was simulated successfully.In both national standard GB/T 17578-1998 and EU’s ECE R66,the strength of bus top was stipulated.However,the simulation made in the paper indicates that the damage severity of this kind of accident is far more beyond the corresponding stipulation level. To reduce the loss of accident,new material and increased thickness were used for side posts of this vehicle,and a following simulation proves its effectiveness,although only to some extent.The results could be referred by automotive vehicle designers.

关 键 词：大客车 侧翻 护栏 生存空间 有限元 

分 类 号：TH212[机械工程—机械制造及自动化] TH213.3