汽车追尾碰撞保险杠结构的力学特性  

Mechanical Characteristics of the Vehicle Bumper in Rear Collision

作　　者：杨艳庆[1] 田晋跃[1] 

机构地区：[1]江苏大学汽车与交通工程学院,江苏镇江212013

出　　处：《现代交通技术》2009年第5期74-76,共3页Modern Transportation Technology

摘　　要：针对交通事故中汽车的碰撞问题,运用动量守恒定理和能量守恒定律着重研究了汽车追尾碰撞情况下,汽车碰撞前部主要的结构吸能的优化方法。基于非线性ANSYS/LS-DYNA有限元软件,分析了在车辆的前纵梁部分薄壁梁表面开矩形吸能孔的可行性,取得了优化的薄壁梁的有限元模型,并利用得到的优化模型进行了保险杠碰撞的力学分析。Aiming at vehicle crash in traffic accident ,this paper analyses the optimization method of structure energy absorption of vehicle front past in vehicle rear collision based on the non-linear finite element software ANSYS/ LS-DYNA, several key factors have been analyzed in the model-building process, and the feasibility of energy absorption through retangle hole in the surface of thin-wall structure is analysed. The optimized finite element model is got and used to analyse mechanical characteristics for vehicle bumper.

关 键 词：汽车碰撞 有限元分析 保险杠 薄壁梁 

分 类 号：U463.326[机械工程—车辆工程] U461.91[交通运输工程—载运工具运用工程]