Optimal preventive maintenance warranty policy for repairable products with periodically increasing failure rate
type: Item
instance of: scholarly article
title: Optimal preventive maintenance warranty policy for repairable products with periodically increasing failure rate
zbMATH Open document ID: 1198.90101
DOI: 10.1504/IJOR.2010.035046
author: Syed N. Mujahid
author: Md. Abdur Rahim
published in: International Journal of Operational Research
publication date: 2010-11-12T00:00:00Z
review text: Summary: In this paper, a preventive maintenance warranty (PMW) policy for repairable products is investigated. The objective is to determine the optimal number of preventive maintenance (PM) actions, the degree of maintenance and the length of each PM interval; while minimising the total expected warranty cost. The failure rate of repairable products is assumed to be periodically increasing over time. A unique relationship between successive PM intervals is determined. For a special case of failure rate and minimal repair cost, a relationship among the PM intervals is derived. A unique property is inferred from this special case, which relates the maximum failure level in the adjoining PM intervals. The derived relations are illustrated by a numerical example. Yeh and Lo presented a mathematical model for the optimal determination of a PMW policy under similar periodic failure rates. The present study is an extension of their work and shows that unequal PM intervals provide an economic benefit.
Mathematics Subject Classification ID: 90B25
zbMATH DE Number: 5815553
zbMATH Keywords: periodically increasing failure rate
zbMATH Keywords: preventive maintenance
zbMATH Keywords: warranty
zbMATH Keywords: repairable products
zbMATH Keywords: unequal intervals
MaRDI profile type: Publication
description: scientific article; zbMATH DE number 5815553