Abstract

The reliability modeling of dynamic correlation system with multi-failure modes is studied in this paper. Firstly, Patton model, one of the time-varying copula models, is introduced. Secondly, multi-dimensional time-varying copula function of multi-failure modes correlation system is transformed into two-dimensional time-varying copula functions based on vine Copula function, and then reliability modeling and solution procedure of multi-failure modes correlation system is presented based on time-varying copula model. Finally, the above reliability modeling and solution procedures are demonstrated through a vehicle suspension system engineering case, and their correctness are proved by the results obtained in engineering case.

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