The optimization of strategies for the operation of technical systems with the performance of emergency and preventive restorations

The strategy of technical system operation with mismatched time distribution function elements on the developments for the rejection after emergency and preventive restorations are considered. This strategy generalizes the strategy of strictly periodic restorations which is known in the mathematical theory of reliability. The formula of availability and cost intensity is obtained. By criterion of a minimum of costs intensity or a maximum of an availability, the problem of the choice of operation strategy from considered strategies are determined. There is a strategy with carrying out of preventive restorations and strategy with carrying out of emergency restorations for exponential laws of distribution practices.