Research on Modeling Method of System Reliability Digital Twin

In view of the problems existing in the current product development, such as poor coordination of system Reliability work, lack of effective model representation methods and supporting data, combined with the advantages of digital twin in model-driven and data-driven integration, and the requirements of Reliability integrated design, an system reliability digital twin model construction method is proposed, combines Reliability and functional characteristics elements. The concept of Reliability digital twin is defined, and the relationship between Reliability digital twin and MBSE-based Reliability is analyzed. Based on this, the construction process of product system Reliability digital twin model is given, the objects, basic models and data of relevant stages in the process are defined, and the construction idea and related basic models representation methods of system Reliability digital twin model are put forward. Finally, a case study of the power subsystem of a communication system is carried out, which lays an important foundation for the realization of forward design of product reliability based on digital twin.