焊点布局的结构多目标拓扑优化设计  

Multi-objective Structural Topology Optimization for Spot-welded Layout

作　　者：周泽斌[1] 斋藤和弘[2] 杨建国[1] 

机构地区：[1]东华大学机械工程学院,上海201620 [2]密歇根大学机械系,安娜堡48105

出　　处：《农业机械学报》2011年第8期189-194,共6页Transactions of the Chinese Society for Agricultural Machinery

基　　金：国家自然科学基金资助项目(50975046);国家高技术研究发展计划(863计划)资助项目(2008AA04Z123)

摘　　要：针对结构优化设计中先分解后组合的重复优化问题,提出一种焊点布局的结构多目标拓扑优化方法。在连续设计域中,给定载荷和约束的情况下,同时优化整个结构的拓扑空间和几何造型,并决定子结构间的连接位置和布局形态。通过有限元分析和基于几何学交叉过程的多目标遗传算法得到Pareto解集,可根据不同需求确定权重,选择最优方案。To solve the two-step process optimization problem,a method for synthesizing multi-objective structural topology optimization based on spot-welded layout was presented.Given an extended design domain with boundary and loading condition,the topology and geometry of an entire structure and the location and configuration of joints was optimized.A multi-objective genetic algorithm coupled with FEM analyses was used to obtain Pareto optimal solutions,the decision could be made for different demands.

关 键 词：面向制造设计 焊点布局 拓扑优化 多目标遗传算法 

分 类 号：U463.32[机械工程—车辆工程] TP182[交通运输工程—载运工具运用工程]