Reliability Analysis of Tracked Vehicle Gear Transmission Box Considering Component Failure Correlation

Yan Sihong; Tao Fenghe; Jia Changzhi

doi:10.16578/j.issn.1004.2539.2017.12.017

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Reliability Analysis of Tracked Vehicle Gear Transmission Box Considering Component Failure Correlation

更新时间：2022-10-20

- Reliability Analysis of Tracked Vehicle Gear Transmission Box Considering Component Failure Correlation
- Vol. 41, Issue 12, Pages: 83-88(2017)
- 作者机构：
  
  1. 陆军工程大学火炮工程系
- 作者简介：
- 基金信息：
- DOI：10.16578/j.issn.1004.2539.2017.12.017
  CLC：
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[1]闫思宏,陶凤和,贾长治.考虑部件失效相关的履带车辆传动箱可靠性分析[J].机械传动,2017,41(12):83-88.

Yan Sihong, Tao Fenghe, Jia Changzhi. Reliability Analysis of Tracked Vehicle Gear Transmission Box Considering Component Failure Correlation. [J]. 41(12):83-88(2017)
[1]闫思宏,陶凤和,贾长治.考虑部件失效相关的履带车辆传动箱可靠性分析[J].机械传动,2017,41(12):83-88. DOI： 10.16578/j.issn.1004.2539.2017.12.017.

Yan Sihong, Tao Fenghe, Jia Changzhi. Reliability Analysis of Tracked Vehicle Gear Transmission Box Considering Component Failure Correlation. [J]. 41(12):83-88(2017) DOI： 10.16578/j.issn.1004.2539.2017.12.017.

摘要

在以履带车辆传动箱为对象进行研究的过程中,考虑部件间失效相关这一重要失效形式对传动箱可靠性的影响,利用部件的动态可靠度模型计算主要失效部件的可靠度,结合部件寿命分布函数与可靠性间的关系,得到传动箱内主要部件的寿命分布函数随时间变化的曲线,进一步使用最小二乘法估算出主要零部件的寿命分布函数。在此基础上,绘制部件间的二元频率直方图,选择合适的Copula函数,建立在部件失效相关条件下的传动箱系统可靠性模型,利用Copula函数可以避免运算的繁琐性及部件间相关系数求解的复杂性。使用逐层分块分析法合理划分传动箱系统结构,并用Matlab软件估算部件间相关参数,得到了传动箱系统寿命分布函数随时间及部件失效相关参数的变化规律,对传动箱的设计与维护具有一定的指导意义。

Abstract

The influence of component failure（ an important form of failure） on the gear transmission box is taken into consideration during the study of gear transmission box of tracked vehicle. The dynamic reliability model of the main components is used to compute the reliability of the components,and the curves of life distribution function change with time are got according to the relationship between the life distribution function and the reliability of the components. Then,the least squares method is used to estimate the life distribution function of the components. On this basis,the appropriate Copula function is selected through the frequency histogram of related components,and the reliability model of gear transmission box under the condition of components failure is established. The cumbersome operation and the complexity of solving the correlation coefficient of related components can be avoided through using Copula function. The gear transmission box is reasonably divided by using the method of layer-by-layer analysis and using Matlab software to calculate the relevant parameters. Finally,the change regulation of life distribution function of gear transmission box system with time and the relevant parameters is obtained,which has a guiding significance for the design and maintenance of the transmission box.

关键词

Copula函数可靠性失效相关寿命分布函数相关参数

Keywords

Copula functionReliabilityRelevant failureLife distribution functionRelated parameter

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