Assessment Method of System Reliability Based on Cloud Model and Hybrid Stochastic Petri Net

Aiming at the variable environment in reliability assessment for complex systems,an assessment method of system reliability based on cloud model and hybrid stochastic Petri net is proposed.Firstly,cloud model is applied to describe the index of suitability for working conditions,which is used to control the rate of dscrete transitions.Then Monte-Carlo Method based on Petri net is used to obtain simulation simulation solution of system reliability in different environment,and the failure raets for real time are gained.Finally,a C4ISR system illuminates the feasibility of this method.