### Abstract

Lingua originale | English |
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Stato di pubblicazione | Published - 2012 |

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**A Multi-Objective Approach to Optimize a Periodic Maintenance Policy.** / Enea, Mario; Galante, Giacomo Maria; Lupo, Toni; Certa, Antonella.

Risultato della ricerca: Paper

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TY - CONF

T1 - A Multi-Objective Approach to Optimize a Periodic Maintenance Policy

AU - Enea, Mario

AU - Galante, Giacomo Maria

AU - Lupo, Toni

AU - Certa, Antonella

PY - 2012

Y1 - 2012

N2 - The present paper proposes a multi-objective approach to find an optimal periodic maintenance policy for a repairable and stochastically deteriorating multi-component system over a finite time horizon. The tackled problem concerns the determination of the system elements to replace at each scheduled and periodical inspections ensuring the simultaneous minimization of both the expected total maintenance cost and the expected global system unavailability time. It is assumed that the failed system elements are repaired by means of minimal repair actions in order to rapidly restore the system. A non-linear integer mathematical programming model is developed to solve the treated multi-objective problem while the Pareto optimal frontier is described by the Lexicographic Goal Programming and the ε-constraint methods. To explain the whole procedure a numerical application related to a case study is given.

AB - The present paper proposes a multi-objective approach to find an optimal periodic maintenance policy for a repairable and stochastically deteriorating multi-component system over a finite time horizon. The tackled problem concerns the determination of the system elements to replace at each scheduled and periodical inspections ensuring the simultaneous minimization of both the expected total maintenance cost and the expected global system unavailability time. It is assumed that the failed system elements are repaired by means of minimal repair actions in order to rapidly restore the system. A non-linear integer mathematical programming model is developed to solve the treated multi-objective problem while the Pareto optimal frontier is described by the Lexicographic Goal Programming and the ε-constraint methods. To explain the whole procedure a numerical application related to a case study is given.

KW - Periodic Maintenance; Multi-Component System; Non-Homogeneous Poisson Process; Multi-Objective Optimization

UR - http://hdl.handle.net/10447/75712

M3 - Paper

ER -