基于事件的系统可靠性参数仿真算法

Two Event-based Simulation Algorithms to Determine System Reliability Parameters

介绍了可以用扩展可靠性框图表示的系统的可靠性参数的仿真算法。首先,对扩展可靠性框图进行了介绍,提出了利用树状结构来描述扩展可靠性框图的结构。其次,对基于扩展可靠性框图的系统行为进行了分析。然后,依据离散事件系统仿真思想,分别给出了计算可修系统可靠性参数的仿真算法与不可修系统可靠性参数的仿真算法。最后,给出了计算实例。该仿真算法不仅可以对状态独立系统进行可靠性参数计算,而且可以对具有冷储备关系以及冷储备嵌套关系的状态相关系统进行可靠性参数计算,具有很强的通用性与实用性。

In the paper,a simulation algorithm of system which can be described into extended reliability block diagram is put forth.At first,the concepts of extended reliability block diagram are discussed and we bring forward a tree structure method to depict the structure of extended reliability block diagram.Secondly,we discusses the behavior of system which can be described into extended reliability block diagram.Thirdly,according to discrete event simulation concept,we expounds two simulation algorithms to estimate reliability of non-repairable system and availability of repairable system respectively.At the end,two case-studies are introduced and analyzed using both algorithms.The eventbased simulation algorithms can be very useful when determining reliability and availability for a wide range of complex systems,especially for the state-depended system with stand-by subsystem.