东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2009, Vol. 30 ›› Issue (4): 589-592.DOI: -

• 论著 • 上一篇    下一篇

动作可靠性分析评价方法

何恩山;孙志礼;李良巧;   

  1. 东北大学机械工程与自动化学院;中国兵器工业系统总体部;
  • 收稿日期:2013-06-22 修回日期:2013-06-22 出版日期:2009-04-15 发布日期:2013-06-22
  • 通讯作者: He, E.-S.
  • 作者简介:-
  • 基金资助:
    国防科工委可靠性技术基础资助项目(Z102006B001)

Analysis and evaluation of motion reliability

He, En-Shan (1); Sun, Zhi-Li (1); Li, Liang-Qiao (2)   

  1. (1) School of Mechanical Engineering and Automation, Northeastern University, Shenyang 110004, China; (2) North China System Engineering Institute, Beijing 100089, China
  • Received:2013-06-22 Revised:2013-06-22 Online:2009-04-15 Published:2013-06-22
  • Contact: He, E.-S.
  • About author:-
  • Supported by:
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摘要： 机构动作失效形式多,各失效之间存在相关性,同时,基于数值计算法很难进行系统动作可靠性的分析计算.为解决这一问题,利用动作可靠性仿真数据获得各失效参数之间的相关系数,并给出了联合密度法、界限法和条件概率法求解系统可靠度的公式,进行了机构动作可靠性的综合评价.所提方法较之独立假设条件下的系统可靠度计算结果,更接近实际.

关键词: 机构, 动作, 可靠性, 分析, 评价

Abstract: Many failure modes were found in mechanism motion and there is a correlation between different failure modes. In addition, numerical computation is hard to analyze and calculate the system motion reliability. To solve the problem, the correlation coefficients between different failure parameters are acquired according to the data from the simulation of motion reliability, thus giving the formulae of different method to solve the system reliability, including the joint probability density, bounded and conditional probability methods. Then, a comprehensive evaluation was carried out by any of the methods for the motion reliability of a mechanism, and the result showed that the system reliability thus calculated is more accurate in comparison to that calculated with parameters assumed separately.

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