协同优化方法的改进及应用  

Reformed collaborative optimization method and its application

作　　者：李邦国[1] 陈潇凯[2] 林逸[2] 

机构地区：[1]中国铁道科学研究院机车车辆研究所,北京100081 [2]北京理工大学电动车辆国家工程实验室,北京100081

出　　处：《吉林大学学报（工学版）》2010年第6期1497-1501,共5页Journal of Jilin University:Engineering and Technology Edition

基　　金：'863'国家高技术研究发展计划项目(2006AA04Z119)

摘　　要：针对协同优化方法在应用中存在的计算困难,分析了导致协同优化方法计算困难的原因,并指出了常用的改进方法。从改进系统层二次相容性约束出发,提出了一种基于系统层动态约束的协同优化方法,新方法改进了系统层约束,能够避免原协同优化中系统层约束导致的计算困难的问题。并首次使用改进的协同优化方法对减速器进行了优化设计。结果表明,改进的协同优化方法具有很高的稳定性、可靠性,并且能够提高求解效率。The COM is characterized by some computational difficulties in its application.The sources of the computational difficulties were analyzed and several alleviators were reviewed.An improved COM was suggested by modifying the quadratic compatibility in the system level,might be called as the COM based on the dynamic constraints in the system level.The new method updated the constraints in the system level,can avoid the computational difficulties from the system level constraints of the original COM.The improved COM was used to the optimal design of a gear reducer.The results showed that the improved COM is characterized by high robustness,reliability and anvergence speed.

关 键 词：车辆工程 多学科设计优化 协同优化方法 动态约束 

分 类 号：U463.21[机械工程—车辆工程]