车身复杂曲线匹配优化问题研究  

Study on the problems of matching optimization for complicated body curve of vehicle profile

作　　者：罗来军[1] 来新民[1] 周志强[1] 林忠钦[1] 

机构地区：[1]上海交通大学机械工程学院,上海200030

出　　处：《机械设计》2002年第6期10-14,共5页Journal of Machine Design

基　　金：国家 8 63项目 (863 - 51 1 - 0 30 - 0 0 2 )

摘　　要：在汽车白车身的装配过程中 ,往往会遇到两个具有复杂曲面轮廓的三维零件的匹配位置优化问题 ,为此提出了一种新的解决三维曲线空间匹配位置优化的优化算法 ,通过构造适当的优化目标函数 ,提高优化求解的收敛速度 ,增强该算法的实用性和灵活性。There are many 3-D parts with complicated profile in process of Body in White assembly,which cause assembly fitting problems.In order to solve this kind of problems,a novel algorithm based on genetic algorithm to research the global optimal fitting position of two space curves is discussed in the paper,and the optimal functions are presented respectively.The solution to constrained optimization problem by applying genetic algorithm is described in detail,and the whole diagnosis flow of GA is presented.Some improved GA methods used in the constrained optimization is discussed.

关 键 词：三维匹配 遗传算法 汽车 车身 装配 优化设计 

分 类 号：U463.82[机械工程—车辆工程]