基于任意拉格朗日-欧拉算法的气帘展开数值模拟  

Numerical Simulation of Curtain Airbag Deployment Based on Arbitrary Lagrangian-Eulerian Algorithm

作　　者：陆善彬[1] 董丽萍[2] 陈光[1] 张君媛[1] 杨志超[1] 

机构地区：[1]吉林大学 汽车动态模拟国家重点实验室,长春130025 [2]同济大学汽车学院,上海201804

出　　处：《汽车工程》2009年第12期1158-1161,共4页Automotive Engineering

摘　　要：大多数气囊展开模拟采用均匀压力算法,为了更有效地模拟充气气体与袋体的相互作用,建立了基于任意拉格朗日-欧拉算法(ALE)的气帘仿真模型,详细介绍了ALE模型相关组成部件、参数设置和接触定义方法,并利用LS-DYNA软件对该模型进行了仿真验证,最后将所建的气帘ALE模型初步应用到某车侧面碰撞仿真中,以考察气帘对乘员的保护作用。The majority of airbag deployment simulation adopt uniform pressure algorithm. In order to effectively simulate the interaction between inflating gas and deploying airbag, a curtain airbag model is established based on arbitrary Lagrangian-Eulerian algorithm （ALE）. The related parts of ALE model, parameter setting and contact definition are described in detail and the model is verified by the simulation with LS-DYNA. Finally the ALE model for curtain airbag is preliminarily applied to a side impact simulation of a car to investigate the passenger protection effects of curtain bag.

关 键 词：任意拉格朗日-欧拉算法 帘式气囊展开 数值模拟 

分 类 号：U491.61[交通运输工程—交通运输规划与管理]