A two-unit standby system with regular repairman and waiting time of skilled repairman

Abstract

The paper deals with a stochastic behavior of a two-identical unit cold standby system model assuming the two modes of a unit. Two repairmen are considered to repair a failed unit. One is regular repairman who is always available with the system and other is skilled repairman who is arranged from the outside. The skilled repairman takes some significant time to reach at the system. As soon as a unit fails, it is attended immediately by regular repairman, who is able to complete the repair of the failed unit within a specified time limit with probability p, otherwise with probability q the skilled repairman is intimated to reach at the system in order to complete the repair of the failed unit. The system model is analyzed by using regenerative point technique in order to obtainvarious measures of systemeffectiveness.