Dynamic Reliability Analysis of RV Reducer Considering Strength Degradation and Dependent Failure

Du Xuesong; Lou Jiabin; Huang Yucheng; Liu Hao

doi:10.16578/j.issn.1004.2539.2020.02.014

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Dynamic Reliability Analysis of RV Reducer Considering Strength Degradation and Dependent Failure

Test·Analysis | 更新时间：2022-10-25

- Dynamic Reliability Analysis of RV Reducer Considering Strength Degradation and Dependent Failure
- Journal of Mechanical Transmission Vol. 44, Issue 2, Pages: 98-103(2020)
- 作者机构：
  
  1.重庆大学机械传动国家重点实验室，重庆 400030
- 作者简介：
- 基金信息：
- DOI：10.16578/j.issn.1004.2539.2020.02.014
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杜雪松,楼嘉彬,黄玉成等.考虑强度退化与失效相关性的RV减速器动态可靠性分析[J].机械传动,2020,44(02):98-103.

Du Xuesong,Lou Jiabin,Huang Yucheng,et al.Dynamic Reliability Analysis of RV Reducer Considering Strength Degradation and Dependent Failure[J].Journal of Mechanical Transmission,2020,44(02):98-103.
杜雪松,楼嘉彬,黄玉成等.考虑强度退化与失效相关性的RV减速器动态可靠性分析[J].机械传动,2020,44(02):98-103. DOI： 10.16578/j.issn.1004.2539.2020.02.014.

Du Xuesong,Lou Jiabin,Huang Yucheng,et al.Dynamic Reliability Analysis of RV Reducer Considering Strength Degradation and Dependent Failure[J].Journal of Mechanical Transmission,2020,44(02):98-103. DOI： 10.16578/j.issn.1004.2539.2020.02.014.

摘要

强度退化和失效相关性对机械系统的可靠度有显著影响，目前尚无同时考虑上述因素的RV减速器动态可靠性分析方法。根据RV减速器的结构特点，建立了基于强度退化理论的RV减速器零件动态可靠度分析模型，分析了强度退化对RV减速器零件可靠度的影响规律；通过推导出的耦合两级传动子部件可靠度的Copula函数描述零部件间的失效相关性，建立了RV减速器系统动态可靠性分析模型，研究了失效相关性对系统可靠性的影响规律；对影响RV减速器可靠性的主要设计参数进行了灵敏度分析，获得了各参数的灵敏度排序，为RV减速器的可靠性优化设计奠定了基础。

Abstract

The strength degradation and dependent failure， which have not been taken into account yet in the existing RV reducer reliability analysis methods， have a significant impact on the reliability of mechanical systems. According to the structural characteristics of the RV reducer， a dynamic reliability analysis model with main load bearing components based on strength degradation theory is established and the rule of the effect of strength degradation on the dynamic reliability is analyzed. The Copula function is derived to describe the dependent failure among the components of the RV reducer. The dynamic reliability analysis model of RV reducer is established， the rule of the influence of the dependent failure on the RV reducer reliability is studied. The sensitivity sequence of each parameter is obtained by adopting the sensitivity analysis on the main design parameters that affecting the RV reducer reliability. The research results lay a foundation for the optimal reliability design of the RV reducer.

关键词

RV减速器失效相关性强度退化动态可靠性灵敏度分析

Keywords

RV reducerDependent failureStrength degradationDynamic reliabilitySensitivity analysis

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