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An Integrated model for preventive maintenance and spare part inventory planning
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Date
2014
Author
Bülbül, Pınar
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The machine in any production environment is subject to failure. Although the frequency of failures can be managed through preventive maintenance activities, it is impossible to get out of failures entirely. Firms need to carry spare parts inventory to cope with failure and ensure smooth operations through preventive maintenance. In other words, preventive maintenance and uncertain failures can be considered as the major reasons of spare part inventory. Therefore, planning preventive maintenance activities and managing spare part inventory should be handled together. In this study, we present a Dynamic Programming formulation of the joint problem of the preventive maintenance and spare parts inventory planning. The aim is to minimize the total expected cost over a finite planning horizon. Since the Dynamic Programming formulation is computationally intractable for long planning horizons and a system with a large number of machines, three heuristic approaches are proposed: (i) Myopic approach, (ii) Stationary policy and (iii) Steady-State approximation. Through computational analyses, effects of problem parameters on the performances of the proposed heuristics are investigated.
Subject Keywords
Maintenance.
,
Inventory control.
,
Maintainability (Engineering).
URI
http://etd.lib.metu.edu.tr/upload/12617735/index.pdf
https://hdl.handle.net/11511/23910
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Graduate School of Natural and Applied Sciences, Thesis
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P. Bülbül, “An Integrated model for preventive maintenance and spare part inventory planning,” M.S. - Master of Science, Middle East Technical University, 2014.
