吸能盒在低速撞击情况下的仿真与分析  

Simulation and analysis on low speed collision of crash boxes

作　　者：曲明[1] 柳艳杰 夏春艳 李晓阳[1] 

机构地区：[1]哈尔滨工程大学机电工程学院,黑龙江哈尔滨150001

出　　处：《应用科技》2008年第8期59-64,共6页Applied Science and Technology

基　　金：黑龙江大学青年创新基金资助项目(QJ200633)

摘　　要：以吸能盒的低速正面碰撞试验为例,利用Hypermesh软件建立了由壳单元组成的吸能盒有限元模型,应用LS-DYNA软件进行了正面碰撞的模拟,结果与试验以及理论数据对比,验证了仿真模型的可靠性.根据试验和仿真结果,确定了吸能盒结构耐撞性方面的影响因素,以此改进吸能盒耐撞性的方法.This paper is mainly devoted to the analysis of a front collision of crash box at low speed. A finite element model of crash box was built up with shell element of Hypermesh software package. Both the experiment and theoretical analysis verified the feasibility of simulation model. Therefore the factors affecting the crashworthiness of crash box were determined. The aspects for improving the crashworthiness of crash box are pointed out.

关 键 词：吸能盒 正面碰撞 低速 耐撞性 

分 类 号：TH122[机械工程—机械设计及理论]