故障树分析法在某型扬弹机锁定机构曲柄断裂故障中的分析应用

Analysis and Application of Fault Tree Analysis in Crank Fracture Fault of Certain Type Locking Mechanism of Projectile Hoist

为有效解决装备出现的问题,采用故障树分析法,对在调试中出现的扬弹机锁定机构曲柄断裂故障进行分析,找到造成故障的原因,绘制故障树,找出影响故障各原因之间的逻辑关系。通过定性分析和定量计算,确定故障树的最小割集,计算顶事件发生的概率和各割集发生的概率等参数,并分析各原因故障的影响程度。该研究可为高效解决故障提供依据。

In order to effectively solve the problems of equipment,the fault tree analysis method is used to analyze the crank fracture fault of the locker locking mechanism that appears in the commission.Find the cause of the failure,draw a fault tree,and find out the logical relationship between the causes of the failure.Through qualitative analysis and quantitative calculation,the minimum cut set of the fault tree is determined,the probability of occurrence of the top event and the probability of occurrence of each cut set are calculated,and the influence degree of each cause fault is analyzed.This research can provide a basis for efficient troubleshooting.