Abstract

This paper studies the effectiveness of repairman on system consisting of two operating repairable units. The system fail due to external factor like Poisson shocks that occur in different times. The arrivals of the shocks follow a Poisson process and the magnitude of a shock is an independent random variable following a known distribution. Repair time, the length of repairman’s vacation and recall time are arbitrary distributions. Certain important results have been derived: the reliability, mean time to failure, steady-state availability and steady-state frequency of the system using supplementary variable technique. Special case is derived from the system.

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