Copyright © 2010 SciRes. AM Semi-Markovian Model of Monotonous System Maintenance with Regard to its Elements’ Deactivation and Age

An explicit form of reliability and economical stationary performance indexes for monotonous multicompo-nent system with regard to its elements ’ maintenance has been found. The maintenance strategy investigated supposes preventive maintenance execution for elements that has attained certain operating time to failure. Herewith for the time period of elements ’ maintenance or restoration operable elements, functionally con-nected with the failed ones, are deactivated. The problems of maintenance execution frequency optimization have been solved. For the model building the theory of semi-Markovian processes with a common phase field of states is used