东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2011, Vol. 32 ›› Issue (9): 1295-1298.DOI: -

• 论著 • 上一篇    下一篇

起重机械制动器可靠度的不确定性分析

李鹤;张杰;张磊;闻邦椿;   

  1. 东北大学机械工程与自动化学院;
  • 收稿日期:2013-06-19 修回日期:2013-06-19 发布日期:2013-04-04
  • 通讯作者: -
  • 作者简介:-
  • 基金资助:
    教育部新世纪优秀人才支持计划项目(NCET-10-0271);;

Uncertainty analysis of reliability for crane brake

Li, He (1); Zhang, Jie (1); Zhang, Lei (1); Wen, Bang-Chun (1)   

  1. (1) School of Mechanical Engineering and Automation, Northeastern University, Shenyang 110819, China
  • Received:2013-06-19 Revised:2013-06-19 Published:2013-04-04
  • Contact: Li, H.
  • About author:-
  • Supported by:
    -

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摘要： 针对传统的可靠度分析方法只是简单计算可靠度值,无法分析可靠度的准确性和每种故障因素对设备可靠度的影响问题,提出故障树和信息熵法相结合的方法对制动装置可靠度的不确定性进行分析.同时利用方差重要度的方法计算每种故障因素对系统可靠度不确定性的影响,通过提高对系统可靠度不确定性影响大的故障因素的可靠度的准确性,以提高系统可靠度估计的准确性,为起重机械制动器的可靠性分析和安全性设计提供了借鉴和参考.

关键词: 故障树, 信息熵, 起重机械, 不确定性, 可靠度方差

Abstract: Traditional analyzing methods can simply calculate the value of reliability but can not analyze its accuracy or obtain the effect of every fault factor on it. So a novel analyzing method combining fault tree with information fusion was proposed to study the uncertainty of the system reliability. Variance importance is presented to improve the accuracy of reliability. Effects on the device reliability of every fault factor are calculated, and the accuracy of the most significant factor reliability is improved to meliorate the accuracy of the system reliability. Finally, the efficiency and accuracy of the method are demonstrated through an uncertainty analysis example.

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