摘要
基于壳体有限元理论,在满足车身设计规范前提下,进行车身外覆盖件轻量化定量仿真研究.以发动机罩板为对象,根据车身结构安全性能要求,建立抗弯和抗扭刚度仿真模型.以ST14传统钢板材料仿真结果为比较基准,进行以BH340高强度烘烤硬化钢板为替代材料的发动机罩板轻量化开发.结果表明:在满足车身刚度设计规范前提下,该方案能实现发动机罩板减重14.28%,满足轻量化设计要求.
Based on shell finite element theory and auto-body design standards, numerical material lightweight simulation of auto-body cover panel is presented by using high strength baked hardening steel on engine hood. Bending stiffness and torsion stiffness analysis model on structural simulation is constructed. By replacing the traditional carbon steel ST14 with high strength steel BH340, the weight of engine hood panel can be reduced by 14.28% while the requirement of auto-body stiffness design standard is satisfied. BH340 is recommanded for engine hood as new lightweight material.
出处
《同济大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2009年第7期943-947,共5页
Journal of Tongji University:Natural Science
基金
国家自然科学基金资助项目(50605048)
上海市数字化汽车车身工程重点实验室基金资助项目(2008008)
关键词
车身刚度
轻量化
高强度钢
数值仿真
auto-body stiffness
lightweight
high strength steel
numerical simulation
