Reliability Analysis of Repairable System with Multiple Closed-Loop Feedbacks Based on GO Method

Abstract

In order to solve the problem of reliability modeling and the analysis of complex systems with multiple closed-loop feedbacks, a new reliability analysis method for repairable systems with multiple closed-loop feedbacks is proposed based on the goal-oriented (GO) methodology. Firstly, the basic theories and advantages of GO method are introduced. Secondly, a type-24B multiple closed-loop feedback structure operator is proposed through GO method with its operation formula given, which expands the types of GO method operators and the application scope of their reliability analysis. Finally, taking a certain type of diesel engine fuel supply system an example, the quantitative and qualitative analysis is carried out through GO method, Monte Carlo simulation as well as FTA respectively. The availability results verify the availability of the proposed type-24B operator in the reliability analysis of multiple closed-loop feedback systems. The qualitative analysis results indicate the accuracy and usability of the GO method as a qualitative analysis method.

Keywords

multiple closed-loop feedback / goal-oriented (GO) method / operator / reliability analysis