par Clavareau, Julien ;Labeau, Pierre-Etienne
Référence Safety, Reliability and Risk Analysis: Theory, Methods and Applications: Volume 1, CRC Press, Vol. 1, page (455-462)
Publication Publié, 2020-01
Partie d'ouvrage collectif
Résumé : All systems are subject to aging. When a component is aging, its global performances are decreasing. In order to reduce the effect of aging on a system, preventive maintenance actions can be performed. Yet the rejuvenation of a unit that can be achieved thanks to these interventions is most of the time not total, and does not correspond to the classical as-good-as-new assumption. Imperfect maintenance models have been proposed in the literature in order to embody the partial efficiency of preventive actions. This paper reviews the approaches that are available in the literature to model imperfect maintenance. It also proposes to extend and modify some of them, in order to obtain a simple and mathematically exploitable model, associated with a more realistic time-dependent behavior of the component than that corresponding to the application of previous imperfect maintenance models.