复杂产品协同优化设计中耦合因素的研究  

RESEARCH ON THE COUPLED FACTORS IN MDO FOR COMPLEX PRODUCTS

作　　者：陈柏鸿[1] 肖人彬[1] 刘继红[1] 钟毅芳[1] 

机构地区：[1]华中科技大学机械学院CAD中心,武汉430074

出　　处：《机械工程学报》2001年第1期19-23,共5页Journal of Mechanical Engineering

基　　金：国家自然科学基金! (5 963 5 15 0 );华中科技大学科学研究基金重点资助项目! (J10 0 10 1)

摘　　要：耦合关系的存在是复杂系统进行多学科设计优化产生困难的根本原因。为此 ,讨论了耦合因素的组成及影响关系 ,将耦合因素分为三类。根据全局灵敏度方程GSE(Globalsensitivityequations) ,对子系统之间耦合因素的性质进行分析 ,得到判断耦合因素是否为冗余的依据 ,并根据耦合性质的不同提出处理耦合因素的策略。给出一实例验证消除冗余耦合的效果。In the complex product optimization,it is difficult to use any approaches of multidisciplinary design optimization(MDO) because of the existence of coupled factors.In order to help solve this problem, the components and affection of coupling factors are discussed. The coupled factors are divided into three classes. According to the global sensitivity equations (GSE), the properties of couplings between sub systems are analyzed. The criterion that can determine a redundant coupled factor is gotten. And some strategies for handling the couplings are presented on the basis of coupled properties. An example is given to show the results achieved.

关 键 词：耦合系统 GSE 求解策略 协同寻优 协同设计 

分 类 号：TP391.72[自动化与计算机技术—计算机应用技术] TB472[自动化与计算机技术—计算机科学与技术]