掘进机截割系统的故障树-层次分析法诊断分析

发布时间：2018-04-01 09:28

本文选题：掘进机　切入点：故障树　出处：《煤炭科学技术》2017年03期

【摘要】：为解决EBZ-160型掘进机故障源快速查找与确定困难的问题,通过对常见典型故障形成原因的分析,建立了故障树模型,并通过定性分析求得故障树中底事件的概率重要度。在解决故障树定性分析时,底事件故障概率获取困难,结合层次分析法的基本原理,由专家根据故障发生频率的高低给出判断矩阵,由此矩阵求取底事件的相对概率。并以EBZ-160型掘进机截割系统故障为例,采用故障树与层次分析法相结合的方法,求算出导致掘进机截割部故障源发生的相对概率与底事件的概率重要度。该结果对确定掘进机设计的薄弱环节,掘进机故障源的快速查找与掘进机可靠性设计具有指导作用。
[Abstract]:In order to solve the problem of fast finding and determining the fault source of EBZ-160 type roadheader, the fault tree model is established by analyzing the causes of common typical faults, and the probability importance degree of the bottom event in the fault tree is obtained by qualitative analysis.In order to solve the problem of fault tree qualitative analysis, it is difficult to obtain the fault probability of bottom event. Combined with the basic principle of analytic hierarchy process (AHP), the judgment matrix is given by experts according to the frequency of fault occurrence, and the relative probability of bottom event is obtained from the matrix.Taking the fault of the cutting system of EBZ-160 type roadheader as an example, the relative probability and the probability importance of the bottom event caused by the fault source of the cutting part of the roadheader are calculated by the method of combining the fault tree with the analytic hierarchy process (AHP).The results can be used to determine the weak link of roadheader design, to find the fault source of roadheader quickly and to design the reliability of roadheader.
【作者单位】：中国矿业大学(北京)机电与信息工程学院;石家庄煤矿机械有限责任公司;
【基金】：国家重点基础研究发展计划(973计划)资助项目(2014CB046306)
【分类号】：TD421.5

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