Profit Analysis of a Two Similar Unit Cold  Standby Redundant System with Different  Failure Modes with Expert Repairman

Dr. Vijay Kumar; Dr. Nitin Bhardwaj

Volume : II, Issue : VII, July - 2013

Profit Analysis of a Two Similar Unit Cold Standby Redundant System with Different Failure Modes with Expert Repairman

Dr. Vijay Kumar, Dr. Nitin Bhardwaj

Abstract :

In this paper we studied two similar unit cold standby redundant systems. Each unit has different failure modes. Initially first unit is in operative mode and second unit is in cold standby mode. First unit failed via partial failure mode and second unit cannot fail via partial failure mode. An ordinary repairman is considered to repair the failed (completely or partial) units of the system on FCFS (First come first serve) basis, if ordinary repairman is not capable to repair the unit then expert repairman repair that unit. The failure time distributions of the components are taken as exponential whereas the repair time distributions are general. Using regenerative point technique, important measures of the system effectiveness are obtained. The results are also analyzed through graphs in a particular case when repair time distributions are also exponential.