The method of mission reliability allocation for complex system based on simulation

Reliability has become a greater concern in recent years, because high-tech industrial processes with ever increasing levels of sophistication comprise most engineering systems today. Reliability Allocation Method currently used has corresponding advantages in different aspects, but there are still some limitations in practical engineering applications. It is difficult to establish the mission reliability models for large and complex system while facing the degradation use in function, dynamic correlation between structural composition and faults not meeting the independent assumptions, and other cases. Based on the analysis of the advantages and disadvantages of the traditional reliability allocation methods, this paper described in details the mission reliability allocation method of complex system by applying simulation. It can not only conduct a great deal of iteration calculation but also can weigh different allocation schemes without adding additional work, using simulation calculations after the initial establishment of system simulation models. This is suitable for the mission reliability allocation of complex systems in engineering projects. Finally, this paper provided practical cases applying this method into achieving mission reliability allocation of a warship system.