基于CAE技术的铝合金拖钩结构优化及分析  

Structure Optimization and Analysis of Aluminum Alloy Towing Hook Based on CAE

作　　者：李冰 王岭 王立强 王荣磊 LI Bing;WANG Ling;WANG Li-qiang;WANG Rong-lei(YingKou Institute of Technology College of Material Science and Engineering,Yingkou 115014,China)

机构地区：[1]营口理工学院材料科学与工程学院,辽宁营口115014

出　　处：《世界有色金属》2023年第9期13-15,共3页World Nonferrous Metals

基　　金：营口理工学院校级青年项目(QNL202108);营口理工学院大学生创新创业计划“基于有限元分析的汽车拖钩性能研究”。

摘　　要：以某新能源汽车拖钩为研究对象,对拖钩的铝合金加强板结构及焊缝类型进行优化:将铝合金的U型结构优化为前后两个带减重孔的L型结构,拖钩加强板减重14.7%,实现产品的轻量化;将铝合金加强板与前防撞梁的连续焊缝优化为断续焊缝,每段焊缝长度为25mm,间隔距离为20mm。焊缝的总长度减少27.8%,热输入降低34.5%,保证构件高质高效的焊接,减少对大气环境的污染,达到节能减排的目的。建立白车身及拖钩的有限元模型,运用CAE技术对优化结构的性能进行模拟校核,结果显示该优化结构满足规范要求。Taking the tow hook of a new energy vehicle as the research object,the structure and weld type of the towing hook aluminum alloy reinforcing plate are optimized:the aluminum alloy U-shaped structure is optimized into two L-shaped structures with weight reduction holes,and the weight of the reinforcement is reduced by 14.7%,realizing the lightweight of the product;the continuous weld between the reinforcement and the front anti-collision beam is optimized as intermittent weld.The length of each weld is 25mm and the spacing is 20mm.The total weld length is reduced by 27.8%and the heat input is reduced by 34.5%.It ensures high-quality and efficient welding of components,reduces the pollution to the atmospheric environment and achieves the purpose of energy conservation and emission reduction.The finite element models of BIW and towing hook are established,and the performance of the optimized structure is simulated by CAE.The results show that the optimized structure meets the specification requirements.

关 键 词：拖钩 CAE 强度 优化 焊缝 

分 类 号：TG292[金属学及工艺—铸造]