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http://hdl.handle.net/10662/19407
Title: | Stochastic comparisons of imperfect maintenance models for a gamma deteriorating system |
Authors: | Mercier, Sophie Torres Castro, María Inmaculada |
Keywords: | Fiabilidad;Proceso gamma no homogéneo;(Creciente) orden convexo;Modelo de edad virtual.;Reliability;Non homogeneous gamma process;(Increasing) convex order;Virtual age model |
Issue Date: | 2019 |
Publisher: | Elsevier |
Abstract: | This paper compares two imperfect repair models for a degrading system, with deterioration level modeled by a non homogeneous gamma process. Both models consider instantaneous and periodic repairs. The first model assumes that a repair reduces the degradation of the system accumulated from the last maintenance action. The second model considers a virtual age model and assumes that a repair reduces the age accumulated by the system since the last maintenance action. Stochastic comparison results between the two resulting processes are obtained. Furthermore, a specific case is analyzed, where the two repair models provide identical expected deterioration levels at maintenance times. Finally, two optimal maintenance strategies are explored, considering the two models of repair. |
Description: | Publicado en: European Journal of Operational Research, 2019, 273 (1), pp.237-248.con DOI: https://doi.org/10.1016/j.ejor.2018.06.020 |
URI: | http://hdl.handle.net/10662/19407 |
ISSN: | 0377-2217 |
DOI: | 10.1016/j.ejor.2018.06.020 |
Appears in Collections: | DMATE - Artículos |
Files in This Item:
File | Description | Size | Format | |
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J_ejor_2018_06_020.pdf | 1 MB | Adobe PDF | View/Open |
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