Results 251 to 260 of about 1,230,707 (291)
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Optimal Maintenance Time Under Imperfect Preventive Maintenance

Vulnerability, Uncertainty, and Risk, 2014
The preventive maintenance (PM) is scheduled periodically to restore the system condition. However, PM activities cannot generally restore the system to as good as new condition but in an intermediate situation, which is called imperfect PM. The PM interval optimization is useful for improving system reliability.
M. A. Coque, Jr., G. F. M. Souza
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Optimal maintenance—replacement policy under imperfect maintenance

Reliability Engineering & System Safety, 1992
Abstract During a given planning period, in order to have the system working at or below a fixed failure rate, it may be necessary to replace the system to minimize the expected total cost. Preventive maintenance (PM) or replacement should be performed whenever the system reaches the maximum failure rate.
V. Jayabalan, Dipak Chaudhuri
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Optimal maintenance decisions under imperfect inspection

Reliability Engineering & System Safety, 2005
The process industry is increasingly making use of Risk Based Inspection (RBI) techniques to develop cost and/or safety optimal inspection plans. This paper proposes an adaptive Bayesian decision model to determine these optimal inspection plans under uncertain deterioration.
Maarten-Jan Kallen, Jan M. van Noortwijk
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Optimal Policies With Decreasing Probability of Imperfect Maintenance

IEEE Transactions on Reliability, 2005
This study applies periodic preventive maintenance to three repair models: major repaired, minimal repaired, or fixed until perfect preventive maintenance upon failure. Two types of preventive maintenance are performed, namely imperfect preventive maintenance, and perfect preventive maintenance.
Shey-Huei Sheu   +2 more
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IMPERFECT PRODUCTION SYSTEMS WITH IMPERFECT PREVENTIVE MAINTENANCE, INFLATION, AND TIME VALUE OF MONEY [PDF]

open access: possibleAsia-Pacific Journal of Operational Research, 2006
A model that integrates the issues of production, quality, maintenance, inspection, inflation, and time value of money is proposed in this paper. It is assumed that the production system starts in the in-control state producing items of high or perfect quality.
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An Exact Method for Solving Selective Maintenance Problems Considering Imperfect Maintenance

2016 International Conference on Intelligent Networking and Collaborative Systems (INCoS), 2016
In the past few decades, analytical models for maintenance optimization have been extensively investigated. As research continues, the cases considered during the mathematical modeling are much more practical, as well as complex, which brings many difficulties for solution. In this paper, we present an exact method for solving the selective maintenance
Wenbin Cao   +3 more
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Imperfect Preventive Maintenance Models

2000
This chapter surveys the earlier results of imperfect preventive maintenance (pm) models which could be applied to actual systems; (i) the unit after pm has the same hazard rate as before pm, (ii) the age of the unit becomes x units of time younger at pm, and (iii) the age reduces to at when it was t before pm.
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Selective maintenance optimization when quality of imperfect maintenance actions are stochastic

Reliability Engineering & System Safety, 2016
Abstract This paper addresses the selective maintenance optimization problem in a multi-component system, carrying out several missions with scheduled inter-mission breaks. To improve the probability of the system successfully completing the next mission, maintenance is performed on the system׳s components during the break. Each component is assigned
Abdelhakim Khatab, El-Houssaine Aghezzaf
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Imperfect repair models with preventive maintenance

Journal of Applied Probability, 2003
Brown and Proschan (1983) introduced the imperfect repair model, in which an item, upon failure, is replaced with a new one with probability α, and is minimally repaired with probability 1 − α. In this paper we equip the imperfect repair model with preventive maintenance, and we obtain stochastic maintenance comparisons for the numbers of failures ...
Li, Haijun, Shaked, Moshe
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Selective Maintenance for Systems under Imperfect Maintenance Policy

2014
Due to the advent of complex engineering systems in the last few decades, reliability and maintenance issues are gaining more attention than ever. Maintenance is important to keep a system running and ensure that it performs its functions satisfactorily. Often, there are limited resources to complete the maintenance of a system.
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