轻型货车正面碰撞吸能结构的设计与分析  

Research of frontal energy-absorbing structure of light truck

作　　者：曾鑫[1] 

机构地区：[1]黄冈职业技术学院交通学院,黄冈438002

出　　处：《现代制造工程》2012年第8期36-40,75,共6页Modern Manufacturing Engineering

摘　　要：轻型货车发生正面碰撞时,保险杠与车架是主要的变形吸能结构。为防止正面碰撞时保险杠失效导致车架过度变形,基于某轻型货车车架前端缓冲空间进行吸能结构设计,通过VPG和LS-DYNA软件的联合动态仿真,对比不同截面形状吸能结构的效率,得出高效的车架前端吸能结构。当某轻型货车发生正面碰撞时,吸能结构大量吸收冲击能量,缓解了传递给车架与车身的巨大加速度,起到了保护乘员和车辆本身的作用。The bumper and frame are the main energy-absorbing deformation structure,while the light truck is colliding from the front. In order to prevent an excessive deformation of the frame for the invalidation of the bumper,based on the buffer space in front of frame,the energy absorbing structural is designed. Through the dynamic co-simulation with VPG and LS-DYNA,compa- ring the energy-absorbing efficiency of different cross-section structure, elicited the high-efficiency energy-absorbing structure. When a light truck has a frontal collision,the energy-absorbing structure absorbs the impact energy in quantity, relieves the tre- mendous acceleration transferring to the frame, plays the role of protecting the user and the truck.

关 键 词：吸能结构 车架 动态仿真 被动安全 

分 类 号：U463.99[机械工程—车辆工程]