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Reliability and Survival Methods > Repairable Systems Simulation > Overview of the Repairable Systems Simulation Platform
Publication date: 07/30/2020

Overview of the Repairable Systems Simulation Platform

The Repairable Systems Simulation (RSS) platform enables you to simulate a repairable system and to analyze its outage time. Outage time is the total time a system is not in the On state as a result of either planned maintenance or unintentional failure.

A repairable system is represented by a system diagram. Block shapes in the system diagram represent one or more components that connect to other components. A component that is performing work in the block is said to be functional. Components can be connected in series or in parallel. When components are connected in series, the system fails if any of the components in the series fails. When components are connected in parallel, the system fails if all of the parallel components fail.

A component pathway is said to be uninterrupted when at least one path between the Start and End blocks does not pass through a block shape failure. During a simulation, the system remains in the On state as long as there is an uninterrupted component pathway. If a block shape failure interrupts the component pathway, the system is set to the Down state. If a block shape fails but the component pathway is not interrupted, the system remains in the On state.

You can add unique events and actions to characterize the repairable nature of individual components. An event is a specific occurrence within the system, such as component failure, scheduled maintenance, or the start of a simulation iteration. Events trigger the execution of one or more actions, which express how components behave. Actions can alter the state of a component or the entire system.

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