IJSR - International Journal of Scientific Research

Dr. B. Venkata Ramudu; Dr. G.S. Devasena

Volume : VIII, Issue : V, May - 2019

An Optimal replacement policy for a deteriorating system with increasing repair times using Alpha Series Processes

Dr. B. Venkata Ramudu, Dr. G. S. Devasena

Abstract :

This paper studies an optimal maintenance policy for a reparable deteriorating system subject to random shocks. It assumes that the successive repair time form an increasing alpha series process and the failure mechanism by a generalized –shock process. Based on these assumptions, an explicit expression for the long–term average cost per unit time under a threshold type replacement policy is determined and minimized the long run average cost per unit time such that an optimal replacement policy N* is obtained analytically. Finally, numerical results are provided to strengthen the obtained theoretical results.