RV减速器可靠性优化设计方法  

Reliability Based Design Optimization of RV Reducer

作　　者：楼嘉彬 杜雪松[1] 朱才朝[1] LOU Jia-bin;DU Xue-song;ZHU Cai-chao(The State Key Laboratory of Mechanical Transmission,Chongqing University,Chongqing 400030,China)

机构地区：[1]重庆大学机械传动国家重点实验室,重庆400030

出　　处：《机械设计与制造》2021年第7期207-211,共5页Machinery Design & Manufacture

基　　金：国家自然科学基金资助项目(51575060);重庆市科委重点研发项目(cstc2017rgzn-zdyfX0038)。

摘　　要：根据RV减速器的结构特点,建立了主要承载部件的时变模糊可靠性分析模型,讨论了相关零件在服役期间内的可靠度变化规律,结果表明摆线轮是影响整机可靠性的最薄弱零件。根据最薄弱环节原则,以摆线轮的可靠度和整机的体积为优化目标,提出了RV减速器可靠性优化设计方法。对样机分别进行了常规优化和可靠性优化设计,对比优化结果,显示后者能在减少体积的同时保证高可靠度,优化效果显著,验证了该方法的有效性,为RV减速器的参数优化提供了一种新方法。The established the time-varying fuzzy reliability analysis model with main load bearing components and analyzed the reliability variation rules of relevant parts during service according to the structural characteristics of RV reducer.Results showed that the cycloid wheel is the weakest part which affects the reliability of the whole machine.Aimed at optimizing the reli ability of cycloid wheel and the volume of the whole machine,the reliability optimization design method of RV reducer was pro posed based on the principle of the weakest link.The optimization design and reliability based optimization design were carried out for the living example.The comparison showed that the latter has a significant improvement on high reliability with reducing of volume.Those results verified the correctness of the method which provided a new perspective for parameter optimization of RV reducer.

关 键 词：RV减速器 摆线针轮 可靠性分析 可靠性优化设计 

分 类 号：TH16[机械工程—机械制造及自动化] TH123