Abstract
With failures of dual stages of progress to complete failure from potential failure taken into account, reliability analysis is made in this paper with dual stage control method of making repair of failures as classified into two stages and preventive maintenance. Especially, repair is not immediately made on ocurrence of a failure, the waiting time for repair caused on extreme drop in the availability of the system. We successfully analyzed reliavility for a one-unit system under some suitable assumptions using Markov renewal process. Finally we show some numerical examples as the availability.
