CAJ | 학술논문

针对鳞板输送机失效的影响因素复杂且具用模糊性，提出了模糊故障树分析方法。首先分析出导致鳞板输送机故障的主要原因：牵引链不动、牵引链走轮脱轨、链片断裂及张紧装置拉坏，并逐层找出导致这些原因发生的其它因素从而建立鳞板输送机失效故障树；其次通过定性与定量相结合的分析方法分别求出各底事件的结构重要度、顶事件发生概率、概率重要度及临界重要度，尤其在定量分析过程中，采用模糊集理论与专家综合评判相结合的方法求出模糊不确定因素的底事件失效概率；最后通过鳞板输送机事故树的分析得到了该设备的薄弱环节，从而可以对其采取有效措施，以降低事故发生的概率及提高系统可靠性。
침대린판수송궤실효적영향인소복잡차구용모호성，제출료모호고장수분석방법。수선분석출도치린판수송궤고장적주요원인：견인련불동、견인련주륜탈궤、련편단렬급장긴장치랍배，병축층조출도치저사원인발생적기타인소종이건립린판수송궤실효고장수；기차통과정성여정량상결합적분석방법분별구출각저사건적결구중요도、정사건발생개솔、개솔중요도급림계중요도，우기재정량분석과정중，채용모호집이론여전가종합평판상결합적방법구출모호불학정인소적저사건실효개솔；최후통과린판수송궤사고수적분석득도료해설비적박약배절，종이가이대기채취유효조시，이강저사고발생적개솔급제고계통가고성。
Due to the influence of complexity and fuzziness on the failure of apron conveyer,a new method based on fuzzy fault tree analysis was proposed. There were four factors were analysed which led to the failure: traction chain failure, walking round traction chain derailment, Chains breaking and Pull bad tensioning device, and in order to build the fault tree of apron conveyer failure , we figured out the reasons of these events step by step;then we worked out the structural importance degree coefficient, the probability of the top event, the probability importance degree coefficient and the critical importance degree coefficient in quantitative and qualitative analysis, especially, in quantitative analysis, it combined fuzzy set theory with the expert comprehensive evaluation method to get failure probability of the basic events, which were fuzzy and uncertain;at last, combined with the fault tree analysis ,the weak links of apron conveyer could be found, and thus effective measures can be taken to decrease the probability of accident occurrence and increase the reliability of apron conveyer.