汽车侧翻中车顶变形的有限元分析与优化仿真  

Finite Element Analysis and Optimization Simulation of Vehicle Roof Deformation in Rollover

作　　者：胡瑞海 HU Rui-hai(Changzhou Liuguojun Branch of Jiangsu Union Technical Institute,Changzhou Jiangsu 213025,China)

机构地区：[1]江苏联合职业技术学院常州刘国钧分院,江苏常州213025

出　　处：《林业机械与木工设备》2021年第1期26-29,共4页Forestry Machinery & Woodworking Equipment

摘　　要：汽车侧翻是一种较为常见的交通事故,侧翻导致车身严重变形是乘员受伤的主要原因之一。通过Solid Works建立汽车模型,利用Hypermesh划分有限元网格,采用LS-DYNA对有限元模型进行求解,得出不同翻滚速度对车顶变形的影响。结果表明,车以不同速度行驶发生侧翻后的翻滚速度不同,车顶的变形和乘员损伤程度也不同。给出了防止车辆发生侧翻事故的方法和技术以及优化仿真措施。Vehicle rollover is a common traffic accident.The serious vehicle body deformation caused by vehicle rollover is one of the main causes of passenger injuries.In this paper,a car model was established using SolidWorks,with finite element mesh divided using HyperMesh,the finite element model solved using LS-DYNA,the influence of different rolling speeds on roof deformation obtained.The results show different roof deformation and occupant injury degrees at different car running speeds after rollover,with methods for preventing rollover accidents and some measures for optimizing the simulation put forward.

关 键 词：侧翻 有限元 翻滚速度 变形 

分 类 号：U467[机械工程—车辆工程]