基于遗传编程的变速器行星传动方案进化设计  

Evolutionary design of planetary transmission scheme based on genetic programming

作　　者：华尔天[1,2] 何志国 沈永康 陈万前 汤守伟 HUA Ertian;HE Zhiguo;SHEN Yongkang;CHEN Wanqian;TANG Shouwei(Advanced Water Conservancy Equipment Zhejiang Engineering Research Center,Zhejiang University of Water Resources and Electric,Hangzhou 310023;Institute of Advanced Manufacturing,Zhejiang University of Technology,Hangzhou 310018)

机构地区：[1]浙江工业大学先进制造研究所,杭州310023 [2]浙江水利水电学院先进水利装备浙江省工程研究中心,杭州310018

出　　处：《高技术通讯》2022年第2期208-218,共11页Chinese High Technology Letters

基　　金：国家自然科学基金(61772469)资助项目。

摘　　要：自动变速器(AT)正向着高速、高功率密度、多挡化发展,其可行的理论传动方案数以指数函数形式增加,方案的综合及寻优变得极为困难。针对这一问题,本文结合进化设计理论,提出基于遗传编程的变速器行星传动方案进化设计方法,包括行星传动方案树型编码规则、种群初始化、基于信息公理的适应度评价、遗传操作等关键技术。在此基础上构建了原型系统,该系统包括设计知识库、设计模块、进化结果选择与转化3个模块,在实现设计流程的同时还具有机械干涉检测、挡位分析等功能,在一定程度上实现了智能设计。通过对比分析和实例应用,证实了该原型系统的有效性、合理性。Automatic transmission(AT) is developing towards high speed,high power density,and multi-gear,which leads to the increase of the number of feasible theoretical transmission schemes in the form of an exponential function,so it is very difficult to integrate and optimize the schemes.To solve this problem,in combination with evolutionary design theory,this paper proposes an evolutionary design based on genetic programming method for planetary transmission schemes,where key technologies are developed,such as tree coding rules for planetary transmission schemes,population initialization,fitness evaluation based on information axioms,and genetic operation.On this basis,a prototype system is constructed,which includes three modules:design knowledge base,design module,and selection and transformation of evolutionary results.In addition to realizing the design process,the system also has the functions of mechanical interference detection,gear analysis,etc.,which realizes intelligent design to a certain extent.The validity and rationality of the prototype system are verified by the comparative analysis and practical application.

关 键 词：行星传动方案 进化设计 遗传编程(GP) 适应度评价 原型系统 

分 类 号：TH132.46[机械工程—机械制造及自动化]