Time dynamic mission reliability modeling of multi-state manufacturing systems based on universal generating function

Abstract

Existing studies on reliability modeling of manufacturing systems pay more attention to the basic reliability of component, while ignoring the output and input characteristics of the manufacturing system, which cannot provide the prerequisite to implement condition-based maintenance of complex manufacturing system from a system-based view. In order to resolve this dilemma, a novel method of time dynamic mission reliability modeling of multi-state manufacturing system is proposed in this paper. First, the connotation of mission reliability of the manufacturing system is given from the viewpoint of system engineering. Second, the equipment performance is represented based on the theory of multi-state. Third, the mission reliability modeling method based on the combination of performance degradation and universal generating function (UGF) is proposed. Finally, a case study is conducted to illustrate the effectiveness of the proposed method.