正流量液压挖掘机行走跑偏诊断序列决策  

Diagnosis Sequence Decision-Making of Positive Flow Hydraulic Excavator Walking Deviation

作　　者：张金戈 罗南岚 郑海涛 王高龙 章浩 ZHANG Jinge;LUO Nanlan;ZHENG Haitao;WANG Gaolong;ZHANG Hao(Sunward Intelligent Equipment Co.,Ltd.,Changsha Hunan 410100,China)

机构地区：[1]山河智能装备股份有限公司,湖南长沙410100

出　　处：《机床与液压》2023年第17期159-165,共7页Machine Tool & Hydraulics

基　　金：长沙市重大专项(Kq2102001)。

摘　　要：针对正流量液压挖掘行走跑偏的问题,提出一种基于T-S故障树的故障诊断最优序列多属性决策方法。研究正流量液压挖掘机行走液压系统,分析行走跑偏成因。最后,将基于T-S故障树的故障最优诊断序列多属性决策方法应用于正流量液压挖掘机行走跑偏分析,利用T-S故障树求解正流量挖掘机行走液压系统各元件的概率重要度作为故障诊断排序的重要依据,利用多属性决策方法生成最优诊断序列,对快速精准、最小代价定位正流量液压挖掘机行走跑偏故障源起重大作用。Aiming at the problem of positive flow hydraulic excavator walking deviation,an optimal sequence multi-attribute decision-making method for fault diagnosis based on T-S fault tree was proposed.The walking hydraulic system of positive flow hydraulic excavator was studied,and the causes of walking deviation were analyzed.Finally,the multi-attribute decision-making method of optimal fault diagnosis sequence based on T-S fault tree was applied to the walking deviation analysis of positive flow hydraulic excavator.The probability importance of each component of positive flow excavator walking hydraulic system was solved by T-S fault tree as an important basis for fault diagnosis sequencing,and the optimal diagnosis sequence was generated by multi-attribute decision-making method.It plays an important role in quickly and accurately locating the fault source of positive flow hydraulic excavator walking deviation with minimum cost.

关 键 词：正流量液压挖掘机 行走跑偏 T-S故障树 多属性决策 最优诊断序列 

分 类 号：TH137.7[机械工程—机械制造及自动化]