Numerical Simulation of Reliability of Nuclear Power Plant Repairable System with Multi-failure Behavior

To analyze the reliability of safety system having multi-failure behavior, such as sequence, redundancy and function-dependent failure behaviors, in nuclear power plant, a dynamic fault tree model based on numerical simulation approach was proposed in this paper. It is implemented to analyze the reliability of safety system having multi-failure behavior in nuclear power reactor through randomly simulating the multi-failure behavior of component and judging the success rule of dynamic logic gate. The results of the case study indicate the proposed method is applicable for evaluating the reliability of complicated system with multi-failure behavior, and offers great generality.