基于故障树的采煤机液压盘式制动器故障研究  

Research on Fault of Hydraulic Disk Brake for Shearer Based on Fault Tree

作　　者：周新建[1] 常青青 乔心州[1] Zhou Xinjian;Chang Qingqing;Qiao Xinzhou(College of Mechanical Engineering,Xi'an University of Science and Technology,Xi'an 710054,China)

机构地区：[1]西安科技大学机械工程学院,西安710054

出　　处：《煤矿机械》2020年第2期173-176,共4页Coal Mine Machinery

基　　金：陕西省自然科学基础研究计划(2019JLM-50)。

摘　　要：通过逻辑分析构建了采煤机液压盘式制动器故障与基本事件的故障树模型;采用二元决策图分析故障树模型,得到了导致制动器故障发生的最小割集,并通过状态枚举法计算了基本事件的结构重要度。结果表明,所列举的任一基本事件的失效均会导致制动器故障。为采煤机液压盘式制动器的故障诊断提供了理论依据。A fault tree model of the faults and basic events of the shearer hydraulic disc brake was constructed through logical analysis,the fault tree model was analyzed by using a binary decision diagram to obtain the minimum cut set that causes brake faults,and calculated structural importance of basic events by state enumeration. The results show that the failure of any basic events enumerated will cause brake failure. It provides a theoretical basis for the fault diagnosis of the hydraulic disc brake of shearer.

关 键 词：采煤机 液压盘式制动器 故障树分析 定性分析 

分 类 号：TD421.6[矿业工程—矿山机电]