Reliability evaluation for complex system based on connectivity reliability of network model

A new kind of reliability calculation method for complex system was proposed in this paper. Taking the components as the nodes, the reliability of complex system was represented by the connectivity reliability of shortest path in the network model of complex system. According to the differences of connecting types, different reliability calculation models were constructed. Finally, taking the bogie system of high-speed as the example, the method proposed in this paper was applied and verified. Results showed that the method can effectively analyze and estimate the reliability of the high speed train, providing a new kind of research idea for reliability calculation.