GO-FLOW方法及其改进的精确算法

GO FLOW方法是一种有效的系统可靠性分析方法,直接进行系统可靠性定量计算是GO FLOW方法的优点。但对于包含共有信号的复杂系统,不能直接按GO FLOW方法提供的算法计算,必须保留共有信号项并对其进行修正才能得到精确的计算结果。给出对共有信号进行修正的计算公式推导过程,提出了有共有信号的复杂系统中GO FLOW新的定量精确算法,并用算例加以说明和验证。算例结果表明该方法是精确而有效的。

GO-FLOW methodology and improved exact algorithm

The GO-FLOW methodology is an effective method for system reliability analysis. Its excellence is that it can directly calculate the system reliability, but the analysis by GO-FLOW is more difficult for complex systems with shared signals. A method for analyzing shared signals by modifying the logic operator formulas is presented and a new exact algorithm to calculate the reliability of complex systems with shared signals is put forward. Results from an example show that the algorithm is accurate, effective, simple and practicable. The algorithm proposed will further develop the GO-FLOW methodology for more practical applications.