Reliability Analysis of Hydraulic System of Anchor Drilling Rigs Based on Fuzzy Fault Tree

被引：1

作者：

李庆洋 ^{[1
]}

孙洪华 ^{[1
]}

陈旭东 ^{[1
]}

机构：

[1] College of Mechanical Engineering,Inner Mongolia University of Technology

来源：

Journal of Donghua University(English Edition) | 2019年 / 36卷 / 03期

基金：

中国国家自然科学基金;

关键词：

hydraulic system; fuzzy fault tree; triangle fuzzy number; fuzzy probability importance;

D O I：

10.19884/j.1672-5220.2019.03.003

中图分类号：

TD353.6 []; TD421.3 []; O159 [模糊数学];

学科分类号：

070104 ; 0819 ;

摘要：

Considering that the fault phenomenon of the power head cannot feed under actual working conditions, fuzzy mathematics theory is introduced into fault tree analysis(FTA) according to the structural characteristics of hydraulic system of anchor drilling rigs in this paper. The triangle fuzzy number is used to describe the fault probability of the basic event, the fuzzy probability importance of the basic event is calculated, and the basic events are sorted by comparing the magnitude of the fuzzy probability importance. The results show that the gear wear of auxiliary oil pump, suction phenomena of gear pump, wear and leakage of No.1 and No.3 pumps are the key factors leading to power head failure. In order to improve the overall reliability of the hydraulic system, fault diagnosis and maintenance decisions provide a theoretical basis.

引用

页码：227 / 233

页数：7

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