The invention belongs to the technical field of
system reliability analysis and design, and particularly discloses a
nuclear power equipment
system reliability assessment method, which comprises the following steps: firstly, carrying out fault mode and
influence analysis on equipment according to functional structure
decomposition and related fault information of
nuclear power equipment; establishing a fault tree model of the equipment based on a
fault tree analysis method; then, establishing a reliability prediction and
distribution model of the equipment; establishing a reliability analysismodel considering
common cause failure; On the basis of previous analysis, after maintenance factors in the service period are considered, a
maintenance strategy analysis model based on reliability isestablished to formulate a
periodic maintenance strategy; and finally, based on a human factor
engineering simulation platform, establishing an equipment inspection and maintenance
simulation model to analyze a specific inspection and maintenance process. The model established by the invention can provide important reference and guidance for actual
nuclear power equipment design, operation,
maintenance planning and the like.