Reliability Analysis Of Hydraulic System Of Automobile Crane Based On BN

In recent years the rapid development of China’s automobile crane, increasing the amount used, expanding the scope of construction used in various fields. In China’s economic construction, infrastructure plays a crucial role. The Crane also belong to a special device, the safe and reliable operation has a very important significance. Reduce vehicle crane accidents, breakdowns and repairs can quickly provide protection for personnel safety and stable operation of the enterprise.In this paper, truck crane hydraulic lifting system for the study of the system reliability analysis. Proposed system reliability analysis method based on fuzzy set theory, T-S fuzzy fault tree and BN(Bayesian Network) combining to establish a top event can‘t be upgraded from T-S fault tree model, by expert evaluation method to calculate the bottom Fuzzy reliability probability events, the T-S fuzzy fault tree into BN, BN after bidirectional inference and polymorphic computing power system analysis, the probability of top event, the posterior probability and the degree of importance of each basic event. We found weaknesses in the system, improving the opinions put forward a comprehensive and efficient system reliability analysis.Reliability combination of the above theory, the use of ASP.NET language and SQL SERVER database management system design of hydraulic truck crane system reliability analysis and data management software, and system fault search and fault information collection, system reliability analysis, system reliability data management. Use the Internet a lot, a wide range of data collection and fault repair reliability test data, after the pass of the data analysis, and finally be able to quickly find faults and maintenance guide for truck crane hydraulic system reliability analysis provides computer-aided help.