基于GB20071-2006的侧面碰撞MDB数值模型设计开发  

The Design of Side Impact Mobile Deformable Barrier Numerical Model Based on GB 20071—2006

作　　者：王丽娟[1] 范子杰[2] 桂良进[2] 王青春[2] 

机构地区：[1]南昌大学 [2]清华大学

出　　处：《汽车技术》2008年第7期18-21,共4页Automobile Technology

基　　金：国家高技术研究发展计划863课题(项目编号:2006AA11A102)。

摘　　要：基于GB20071—2006法规对移动变形壁障(MDB)的性能要求,建立了MDB数字化模型。基于渐进式吸能块结构,采用弹塑性与可压溃泡沫材料组合模型模拟吸能块的变形行为,根据法规规定的碰撞块力-变形曲线,进行吸能块各层材料刚度特性分配并构造了满足法规要求的碰撞块材料参数。进行了碰撞性能校核,在保证计算结果符合法规要求的同时获得了很高的计算效率。A MDB numerical model is established based on the requirement of GB 20071-2006 regulation concerning mobile deformable barrier performance.Based on the structure of progressive barrier,the combined model made of plastic and collapsible foam material is used to simulate deformation of barrier,and rigidity characteristic of different layer＇s material is distributed and the material parameters of barrier are constructed according to the force-deformation curve of MDB.The check of impact performance is carried out,the simulation results satisfy the regulation requirements,and the model obtains high computing efficiency.

关 键 词：侧面碰撞 移动变形壁障 有限元 校核 

分 类 号：U461.9[机械工程—车辆工程]