Please use this identifier to cite or link to this item: 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

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