摘要
建立了某CT/1250型缝焊机C型焊接小车的有限元模型,基于ANSYS Workbench软件首先在多工况静力学分析基础上进行拓扑优化分析,然后对优化改进后的模型相关结构参数进行敏感性分析,最后以模型质量最小为目标,以最大形变位移小于1mm为约束条件,对结构参数进行优化设计。结果表明,通过拓扑优化及参数优化,原模型总质量、最大形变位移、最大等效应力分别减小了10.7%、51.8%、68.1%。从而消除了原模型因刚度不足引起焊缝质量下降及原模型加工下料较困难的问题,同时降低了制造成本。这里为同类型产品的结构设计提供了有价值的参考。
A finite element model was established for the C-type welding tractor on a CT/1250 welding machine. Firstly,the topology optimization analysis was performed based on the static analysis under multiple working conditions by ANSYS Workbench software. And then,the sensitivity analysis to pertinent structural parameters was carried out for the improved model. Finally the structural parameters were optimized for minimum mass and maximum deformation displacement being lower than 1 mm. The result shows that the total mass,the maximum deformation displacement and maximum equivalent stress of the original model were reduced by 10.7%,51.8% and 68.1%,respectively. Consequently,the decline of welding quality due to lack of rigidity and processing difficulty was eliminated for the original model and hence the manufacturing cost was reduced. The present method provides a valuable reference for the design of similar structures.
作者
王洋
王克用
李培超
张旭
WANG Yang,WANG Ke-yong, LI Pei-chao, ZHANG Xu(College of Mechanical Engineering,Shanghai University of Engineering Science,Shanghai 201620, Chin)
出处
《机械设计与制造》
北大核心
2018年第8期56-58,共3页
Machinery Design & Manufacture
基金
国家自然科学基金(51205246)
关键词
焊接小车
有限元分析
拓扑优化
参数优化
Welding Tractor
Finite Element Analysis
Topology Optimization
Parametric Optimization
