挖掘机液压系统的故障树分析  

Failure tree analysis for the hydraulic system on excavators

作　　者：孙亚山[1] 陈金水[2] 

机构地区：[1]天津城建学院 [2]天津大学

出　　处：《工程机械》1997年第9期32-35,2,共4页Construction Machinery and Equipment

摘　　要：建立挖掘机“铲斗挖掘无力的故障树”，定义了系统故障树最小割集矩阵和不交化最小割集矩阵，利用微机辅助故障树分析软件对铲斗液压缸系统的可靠性进行了分析研究。A 'Failure tree for lack of cutting force on the bucket'has been established, the failure tree minimum cutrsets'matrix and the non-intersect minimum cut-sets' matrix aredefined. The rcliability of the bucket hydraulic system isanalyzed and studied using a PC analysis software for thefailure tree.

关 键 词：故障树 最小割集 概率重要度 挖掘机 液压系统 

分 类 号：TU621.03[建筑科学—建筑技术科学] TU621.07