摘要
为研究熔化极惰性气体保护焊(MIG焊)搭接焊缝的引入对铝合金焊接结构轻量化设计结果的影响,根据焊缝拉伸试验建立了焊缝的壳单元等效模型,并将其嵌入到基于结构参数化模型多目标优化的轻量化设计方法中。结果表明:在考虑焊缝影响后,设计结果满足目标需求并且更接近工程实际,同时还实现了焊缝处应力的合理分布以及更理想的焊缝布局,但质量有所增加。因此,考虑了MIG焊搭接焊缝影响的铝合金焊接结构轻量化设计具有更好的工程实际应用意义。
In order to study the effect of Molten inert gas welding(MIG) lap weld on the lightweight design of aluminum alloy welded structure,the equivalent model of shell element was established through tensile of welding seam,and it was applied to the lightweight design method based on multi-objective optimization of structural parameterized model.The results show that after considering the influence of weld,the results are closer to the engineering practice,the performance of each target is optimized,besides the reasonable distribution of stress at the weld and a more ideal weld layout are realized,but with increased quality.Therefore,the lightweight design method of welding structure of aluminum alloy considering the effect of MIG lap weld has better engineering practical application significance.
作者
陈鑫
张冠宸
赵康明
王佳宁
杨立飞
司徒德蓉
CHEN Xin;ZHANG Guan-chen;ZHAO Kang-ming;WANG Jia-ning;YANG Li-fei;SITU De-rong(State Key Laboratory of Automobile Simulation and Control,Jilin University,Changchun 130022,China;School of Mechanical and Traffic Engineering,Guangxi University of Science and Technology,Liuzhou 545006,China)
出处
《吉林大学学报（工学版）》
EI
CAS
CSCD
北大核心
2023年第5期1282-1288,共7页
Journal of Jilin University:Engineering and Technology Edition
基金
国家重点研发计划项目(2022YFB250350-3)
吉林大学研究生创新基金项目(101832020CX134)。
关键词
车辆工程
铝合金焊接结构
焊缝壳单元模型
参数化模型
多目标优化
vehicle engineering
aluminum alloy welded structure
weld shell element model
parametric model
multi-objective optimization
