某车型偏置碰撞试验问题分析
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- 英文论文题名：Analysis the Problem of Offset Crash Test
- 论文作者：杨伟 ; 乔鑫 ; 梁宇
- 英文论文作者：Yang Wei ; Qiao Xin ; Liang Yu ; Brilliance Auto R&D Center ; CAE Section
- 年：2016
- 作者机构：华晨汽车工程研究院CAE工程室;
- 论文关键词：有限元 ; 偏置碰撞 ; 纵梁 ; LS_Dyna
- 英文论文关键词：finite element ; offset crash ; longitudinal member ; LS_Dyna
- 会议召开时间：2016-10-26
- 会议录名称：2016中国汽车工程学会年会论文集
- 英文会议录名称：Proceedings of 2016 SAE-China Congress
- 语种：中文
- 分类号：U467.14
- 学会代码：QCGC
- 会议名称：2016中国汽车工程学会年会暨展览会
- 会议地点：中国上海
- 主办单位：中国汽车工程学会
- 学会名称：中国汽车工程学会
- 页数：4
- 文件大小：1439k
- 原文格式：O
- 会议级别：全国
摘要
本文基于有限元技术,针对实车偏置碰撞试验出现的碰撞盒和纵梁产生非正常变形(碰撞盒在中间位置开始向内弯曲变形、纵梁前端未压溃时中部提前弯曲变形)问题进行分析,应用与正面碰撞试验对标后的有限元模型,通过仿真找出碰撞盒、纵梁产生非正常变形的最可能原因,即整车在碰撞过程中前端承受到额外的横向载荷(由试验壁障引起),这个载荷导致碰撞盒和纵梁产生非正常变形。本文拓展了CAE技术在解决实际问题中的应用。
Based on the finite element technology,the paper analyzes the abnormal deformation problem of crash box and longitudinal member produced by physical vehicle offset crash.Application finite element model correlating with frontal impact test simulates and calculates to find out the most possible reason of crash box and longitudinal member abnormal deformation.The most possible is that,the front-end of longitudinal member subjected to additional lateral load(caused by the barrier) in collision process,which leads to crash box and longitudinal beam abnormal deformation.This paper expands the application of CAE technology in solving practical problems.
Based on the finite element technology,the paper analyzes the abnormal deformation problem of crash box and longitudinal member produced by physical vehicle offset crash.Application finite element model correlating with frontal impact test simulates and calculates to find out the most possible reason of crash box and longitudinal member abnormal deformation.The most possible is that,the front-end of longitudinal member subjected to additional lateral load(caused by the barrier) in collision process,which leads to crash box and longitudinal beam abnormal deformation.This paper expands the application of CAE technology in solving practical problems.
引文
[1]张金换,杜汇良,等.汽车碰撞安全性设计[M].北京:清华大学出版社,2010.
[2]李年卫,邵俊健,朱亚军,等.轿车侧面碰撞仿真分析[C].第五届中国CAE工程分析技术年会论文集.2009.
[3]杨伟,乔鑫,沈智达.CAE解决实车碰撞出现的问题[J].制造业自动化,2013,7:160-162.
[2]李年卫,邵俊健,朱亚军,等.轿车侧面碰撞仿真分析[C].第五届中国CAE工程分析技术年会论文集.2009.
[3]杨伟,乔鑫,沈智达.CAE解决实车碰撞出现的问题[J].制造业自动化,2013,7:160-162.