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ji yu mo hu bei ye si li lun de qi che qi zhong ji qi sheng xi tong ke kao xing fen xi
Author(s): 
Pages: 69-73
Year: Issue:  4
Journal: Haisting and Conveying Machinery

Keyword:  truck lifting systemT -S fuzzy fault treeBN networkfuzzy set theoryreliability;
Abstract: In view of the problem regarding reliability of the jacking hydraulic system of the truck crane,the paper puts forward the system reliability analysis method based on fuzzy set theory,T -S fuzzy fault tree and BN network.The paper converts T -S fuzzy fault tree to the BN network and transforms experts’subjective evaluations on basic events to the fuzzy number with the fuzzy set theory to get the precise failure probability.Through bi-direction reasoning calculation ca-pacity of the BN network,the probability of top event occurrence,post-checking probability and importance degree of each basic event are obtained.Through analysis of the jacking system of the truck crane,the system weak link is found,which can perform reliability analysis for the system in a comprehensive and effective way.
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