Abstract

The paper deals with cost benefit analysis of a two identical unit standby system model with two possible modes- Normal (N) and Total failure (F). Initially one unit is operative and other is kept into cold standby. A switching device is used to put the repaired unit into operation and it may be perfect or imperfect at the time of need with fixed known probabilities q and q respectively (q + q =1) . A single repairman is always available with the system to repair the failed switching device and failed unit. The failure and repair times of unit and switching device are taken as independent random variables of discrete nature having geometric distributions with different parameters.

Author: Rakesh Gupta and Arti Tyagi

Received on: April, 2013

Accepted on: August, 2013