基于模糊故障树的采煤机液压制动系统可靠性分析与计算  

Reliability Analysis and Calculation of Hydraulic Braking System of Shearer Based on Fuzzy Fault Tree

作　　者：胡俊 窦昱宁 Hu Jun;Dou Yuning(Shanghai Co.,Ltd.,China Coal Technology and Engineering Group,Shanghai 200030,China;Tiandi Shanghai Mining Equipment Technology Co.,Ltd.,Shanghai 200030,China;Shaanxi Energy Fengjiata Mining Operation Co.,Ltd.,Yulin 719400,China)

机构地区：[1]中煤科工集团上海有限公司,上海200030 [2]天地上海采掘装备科技有限公司,上海200030 [3]陕西能源冯家塔矿业运营有限责任公司,陕西榆林719400

出　　处：《煤矿机械》2023年第3期180-182,共3页Coal Mine Machinery

基　　金：天地科技股份有限公司科技创新创业资金专项(2022-2-TD-ZD004)。

摘　　要：将模糊关系法与故障树分析相结合,先利用专家评判法建立影响因子隶属度关系矩阵,再模糊量化不同矿区的工况条件,与关系矩阵运算得到一个乘因子,故障树底事件平均故障率与该乘因子之积即为当前工况下的故障率,最后代入故障树定量计算出顶事件发生概率。Combined the fuzzy relation method with the fault tree analysis.Firstly,the expert evaluation method was used to establish the membership relationship matrix of the influence factors.Then the working conditions of different mining areas were fuzzy quantified,and a multiplication factor was obtained by calculating with the relationship matrix.The product of the average failure rate of the event at the bottom of the fault tree and the multiplication factor is the failure rate under the current working condition.Finally,the probability of the top event was quantitatively calculated by substituting the fault tree.

关 键 词：模糊故障树 电牵引采煤机 液压制动系统 

分 类 号：TD421.6[矿业工程—矿山机电]