基于最小割集综合排序的液压系统故障定位方法

中国机械工程 ›› 2010, Vol. 21 ›› Issue (11): 1357-1361.

基于最小割集综合排序的液压系统故障定位方法

姚成玉1;陈东宁2

1.燕山大学河北省工业计算机控制工程重点实验室,秦皇岛,066004

2.燕山大学河北省重型机械流体动力传输与控制重点实验室,秦皇岛,066004

出版日期:2010-06-11 发布日期:2010-06-23
基金资助:
国家自然科学基金资助项目(50905154)；高等学校博士学科点专项科研基金资助项目(20091333120005)
National Natural Science Foundation of China（No. 50905154）;
Specialized Research Fund for the Doctoral Program of Higher Education of China（No. 20091333120005）

Fault Localization Method of Hydraulic System Based on Minimum Cut Sets’ Comprehensive Rank

Yao Chengyu1;Chen Dongning2

1.Key Lab of Industrial Computer Control Engineering of Hebei Province,Yanshan University,Qinhuangdao,Hebei,066004

2.Key Lab of Heavy Machinery Fluid Power Transmission and Control of Hebei Province,Yanshan University,Qinhuangdao,Hebei,066004

Online:2010-06-11 Published:2010-06-23
Supported by:
National Natural Science Foundation of China（No. 50905154）;
Specialized Research Fund for the Doctoral Program of Higher Education of China（No. 20091333120005）

摘要/Abstract

摘要：

以故障树分析为基础,综合考虑最小割集的搜索成本、故障概率及影响程度等因素研究了液压系统的故障定位问题。针对系统特点确定了最小割集的数量和属性,利用权的最小平方法建立了加权规范化故障定位搜索决策矩阵,利用相对贴近度法对最小割集进行综合排序求出了搜索序列。针对充液阀故障引起压装机主缸不能工进这一工程问题,采用算法给出的搜索序列较好地实现了快速、准确的故障定位,验证了该算法的有效性。

关键词:

液压系统, 故障树分析, 故障定位, 最小割集, 搜索序列

Abstract:

On the basis of fault tree analysis, fault localization of hydraulic system was investigated by comprehensive consideration of search cost, fault probability, impact degree and other factors of the minimum cut sets. The number and attribute of minimum cut sets were determined according to the system characteristics, and weighted normalized decision matrix of fault localization was established by use of weighted least-square method, then search sequence was calculated based on minimum cut sets’ comprehensive rank by means of relative closeness method. For the master cylinder’s failure to work speed caused by charging valve faults in the engineering practice of the assembling press, rapid and accurate fault localization was realized combined with the search sequence given by the algorithm, and the effectiveness of the algorithm was verified.

Key words: hydraulic system, fault tree analysis, fault localization, minimum cut set, search sequence

中图分类号:

TH137.7

姚成玉, 陈东宁.

基于最小割集综合排序的液压系统故障定位方法

[J]. 中国机械工程, 2010, 21(11): 1357-1361.

TAO Cheng-Yu, CHEN Dong-Ning.

Fault Localization Method of Hydraulic System Based on Minimum Cut Sets’ Comprehensive Rank

[J]. China Mechanical Engineering, 2010, 21(11): 1357-1361.

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