Simulation rules explained

When simulating a model, coincidental maintenance activities can arise (maintenance actions that take place at the exact same time). For example: two maintenance actions (of 1 hour) on the same system could take place simultaneously (see figure below). The total amount of maintenance would be 2 hours, while the downtime of the system would only be 1 hour. The simulation core of Asset Strategy Optimization would record both facts: the maintenance time taking up 2 hours, and the downtime taking up 1 hour. Asset Strategy Optimization uses mechanisms called ‘scoring’ and ‘decision tree’ to record the correct durations. Those mechanisms are explained here.

Not all results from the mechanisms explained here, will end up in the produced simulation reports. However, the user must be aware of these mechanisms to understand specific reporting details, e.g. why certain downtime was recorded on specific maintenance actions.