Discussion on Repairable Systems Analysis Through Simulation

Even though the examples and explanations presented in this chapter were deterministic, the sequence of events and logic used to view the system is the same as the one that would be used during simulation. The difference is that the process would be repeated multiple times during simulation and the results presented would be the average results over the multiple runs.

Additionally, multiple metrics and results were presented and defined. Many of these results can also be used to obtain additional metrics not explicitly given in BlockSim's Simulation Results Explorer. As an example, to compute mean availability with inspections but without PMs, the explicit downtimes given for each event could be used. Furthermore, all of the results given were for operating times starting at zero to a specified and time (although the components themselves could have been defined with a non-zero starting age). Results for a starting time other than zero could be obtained by running two simulations and looking at the difference in the detailed results where applicable. (Note: This is not applicable for derived metrics. It is applicable to time and event counts.) As an example, the difference in uptimes and downtimes can be used to determine availabilities for a specific time window.

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