Title
Modeling age-based maintenance strategies with minimal repairs for systems subject to competing failure modes due to degradation and shocks.
Abstract
This paper deals with maintenance strategies with minimal repairs for single-unit repairable systems which are subject to competing and dependent failures due to degradation and traumatic shocks. The main aims are to study different approaches for making a minimal repair decision (i.e., time-based or condition-based) which is a possible corrective maintenance action under the occurrence of shocks, and to show under a given situation which approach can lead to a greater saving in maintenance cost. Two age-based maintenance policies with age-based minimal repairs and degradation-based minimal repairs are modeled, and their performance is compared with a classical pure age-based replacement policy without minimal repairs. Numerical results show the cost saving of the maintenance policies and allow us to make some conclusions about their performance under different situations of system characteristic and maintenance costs. It is shown that carrying out minimal repairs is useful in many situations to improve the performance of maintenance operations. Moreover, the comparison of optimal maintenance costs incurred by both maintenance policies with minimal repairs allows us to justify the appropriate conditions of time-based minimal repair approach and condition-based minimal approach. (C) 2011 Elsevier B.V. All rights reserved.
Year
DOI
Venue
2012
10.1016/j.ejor.2011.10.025
European Journal of Operational Research
Keywords
Field
DocType
Gamma process,Non-homogeneous Poisson process,Age replacement policy,Minimal repairs,Random inspection,Dynamic environment
Inhomogeneous Poisson process,Gamma process,Optimal maintenance,Corrective maintenance,Deferred maintenance,Mathematics,Operations management
Journal
Volume
Issue
ISSN
218
1
0377-2217
Citations 
PageRank 
References 
13
0.95
2
Authors
4
Name
Order
Citations
PageRank
Khac Tuan Huynh1756.29
I. T. Castro215211.83
Anne Barros324318.42
Christophe Bérenguer426219.23