基于铝合金前端结构的白车身模态仿真分析及试验研究  

Modal simulation analysis and experimental study of Body-in-White based on aluminum alloy front end structure

作　　者：徐陈运 张代胜 汪永嘉 谷先广 XU Chenyun;ZHANG Daisheng;WANG Yongjia;GU Xianguang(Institute of Intelligent Manufacturing Technology,Hefei University of Technology,Hefei 230009,Anhui,China)

机构地区：[1]合肥工业大学智能制造技术研究院,安徽省合肥市230009

出　　处：《农业装备与车辆工程》2023年第7期56-58,75,共4页Agricultural Equipment & Vehicle Engineering

基　　金：安徽省新能源汽车暨智能网联汽车产业技术创新工程项目。

摘　　要：为达到汽车轻量化要求,在某款纯电动汽车白车身设计开发过程中,保险杠、副车架和仪表盘横梁以铝合金精密铸件替换钢制部件进行减重,对白车身模态性能进行了分析。利用HyperMesh、Nastran、HyperView等仿真软件建立纯电动汽车白车身有限元模型,并进行模态分析;同时结合试验测试对有限元分析结果进行校核修正,仿真精度满足要求。2种方法相结合可以为汽车的设计和优化提供行之有效的解决方案。In order to meet the requirements of vehicle lightweight,in the design and development process of a pure electric vehicle body in white,aluminum alloy precision castings were used to replace the steel parts to reduce the weight,which needed to analyze the modal performance of the body in white.HyperMesh,Nastran,HyperView and other simulation software were used to establish the BIW finite element model of pure electric vehicle,and the modal analysis was carried out.Meanwhile,the finite element analysis results are checked and modified by combining with experimental tests,and the simulation accuracy meets the requirements.The combination of the two methods can provide effective solutions for the design and optimization of automobile design schemes.

关 键 词：轻量化 白车身 模态分析 精密铸件 

分 类 号：U463.82[机械工程—车辆工程]