Exact algorithm for complex system reliability using the GO methodology

The GO methodology is a useful method for system reliability analysis since the method can directly calculate a reliability for simple systems, but the analysis is more difficult for complex systems with shared signals. This paper presents a method for analyzing shared signals by modifying the logic operator formulas and presents a new exact algorithm to calculate the reliability of complex systems. Iterative solutions of the simple GO methodology for various state combinations of the shared signals are used to calculate all the signal state probabilities of complex systems. Results of an example show that the algorithm is effective and accurate. The exact algorithm in this paper will further develop the GO methodology for more practical applications.