机械工程与自动化
機械工程與自動化
궤계공정여자동화
MECHANICAL ENGINEERING & AUTOMATION
2014年
1期
189-190,193
,共3页
故障诊断%液压系统%混凝土泵车
故障診斷%液壓繫統%混凝土泵車
고장진단%액압계통%혼응토빙차
fault diagnosis%hydraulic system%concrete-pump truck
针对泵车液压系统结构复杂、故障不易发现的特点，提出了一种基于故障树最小割集的故障诊断方法。以泵送主油路无压力这一典型故障为顶事件，建立故障树模型，再通过最小割集的求解和重要度分析对其进行定性和定量的分析，并以此为依据从大到小排序，确定故障诊断的最优程序。
針對泵車液壓繫統結構複雜、故障不易髮現的特點，提齣瞭一種基于故障樹最小割集的故障診斷方法。以泵送主油路無壓力這一典型故障為頂事件，建立故障樹模型，再通過最小割集的求解和重要度分析對其進行定性和定量的分析，併以此為依據從大到小排序，確定故障診斷的最優程序。
침대빙차액압계통결구복잡、고장불역발현적특점，제출료일충기우고장수최소할집적고장진단방법。이빙송주유로무압력저일전형고장위정사건，건립고장수모형，재통과최소할집적구해화중요도분석대기진행정성화정량적분석，병이차위의거종대도소배서，학정고장진단적최우정서。
It is difficult to find the reason for faults of hydraulic system of a concrete-pump truck because of its complex structure . This paper proposed a new fault diagnosis method based on minimal cut sets of fault tree .For no pressure in main oil circuit which was a typical fault of the hydraulic system ,a fault tree model was set up ,and qualitative analysis and quantitative analysis were carried out through minimum cut set solving and importance analysis .Then we could prioritize these units and find the best program to remove the fault .
