摘要
应用Hypermesh软件构建某国产微型车座椅骨架的有限元模型,根据GB 15083—1994《汽车座椅系统强度要求及试验方法》的有关规定对座椅靠背进行强度及碰撞仿真分析,利用Nastran计算静强度,用Ls_dyna计算碰撞冲击强度,找出该座椅靠背的应力集中位置。经过分析表明座椅靠背在受到静载荷及外来冲击力时,应力分布较均匀,最大应力处属局部应力集中,最大变形位置对座椅的安全性影响不大。
A finite element model of an automobile seat structure is established using Hypermesh. The statics and dynamics of the seat structure are performed through simulation based on GB 15083-1994, which is a motor vehicles-seat system-strength regulation and test method. The static stress tensor is calculated using Nastran. The dynamic stress tensor is calculated using Ls_dyna. The strain concentration position of this type of seat structure is found. The results show that the strain is well-proportioned. The strongest force is brush-fired, and the distortion from the strain has little influence on the seat.
出处
《重庆大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2009年第5期512-515,共4页
Journal of Chongqing University
基金
重庆市科委科技计划项目重点自然科学基金资助项目(CSTC
2006BA6017)
关键词
汽车
座椅
有限元
强度
碰撞
automobile
seat
finite element method
stress tensor
impact
作者简介
徐中明（1963-），男，重庆大学教授，博士生导师，主要从事车辆振动舒适性及系统动力学研究，（E-mail）xuzm@cqu．edu．cn。
