Analysis of Continuously Maintained Complex Redundancy System with CCF Based on GO-FLOW Methodology

By improving the function of GO-FLOW operators,and referring to the quantificational cal-culation model to solve the Common Cause Failure（CCF） in the continuously maintained system,a quantita-tive analysis method was developed to analyze the continuously maintained complex redundancy system reli-ability with CCF by the GO-FLOW in probability risk assessment,and a practical calculation example was presented.It shows that the GO-FLOW algorithm can effectively analyze the reliability of the complex system which contains many sorts of cause leading to CCF and multiple Common Cause Failure Component Groups（CCCGs）,and which can intuitively reflects the changing trend of failure probability in the operation process of the system.Compared with GO methodology,the GO-FLOW can effectively analyze the multi-state and complex system in quantificational calculation of the CCF.