Bayesian method applied to analyzing reliability of engineering machinery engine

摘要

Based on the complexity of the construction machinery system and the complicated characteristics of its reliability analysis, we put Bayesian Network to use in reliability analysis. Taking construction machinery engine as an example, the first thing to do is to construct a Fault Tree of engine system; then, a Bayesian Network model of reliability assessment of engine system is established according to the transforming principle of the Fault Tree and Bayesian network; followed by an reliability analysis of construction engine system and its operation system. By the way of analyzing the known node failure rate of system reliability, the known system at its place of failure and the failure rate of each node at its known system failure mode. An effective method is provided to carry out a reliability analysis of construction engine.