Preventive maintenance is conducted to keep a device working and extend its life. In this chapter we present a simple semi-Markov model of preventive maintenance. The constructed model allows us to formulate a problem of optimizing the time to preventive maintenance. The theorem formulates and proves a sufficient condition that an optimal time exists for preventive service.
Limiting probabilities of state
We can determine preventive maintenance as maintenance of devices, machines, or systems before a failure occurs. The main goal of maintenance is to avoid or to mitigate the consequences of an object failure. Very often, ...
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