This paper proposes a condition-based maintenance approach for availability optimization problem. The system to be maintained is subject to stochastic degradations and assumed to be continuously monitored. Imperfect preventive maintenance actions are made on the basis of the hybrid hazard model and the condition to perform a preventive maintenance corresponds to a system reliability threshold. ...

This paper deals with the modeling of a preventive maintenance strategy applied to a single-unit system subject to random failures. According to this policy, the system is subjected to imperfect periodic preventive maintenance restoring it to ‘as good as new’ with probability p and leaving it at state ‘as bad as old’ with probability q. Imperfect repairs are performed following failures occurri...

The aim of this talk is to present the software tool MARS (Maintenance Assessment of Repairable Systems), developed by EDF R&D and Grenoble University. MARS implements imperfect maintenance (virtual age) models and estimates jointly the effects of ageing and maintenance (preventive and/or corrective) efficiency on real data sets from field feedback.

Preventive maintenance policies are also planned so that the overall reliability. The optimal level of preventive maintenance that maxipreventive maintenance. Maintenance policies can be further improved when they.We design an optimal preventive maintenance policy for a system of N items. An optimal maintenance policy for a system of N items, from a particular class of.Taken into considerations...

We investigate the mathematical modelling of maintenance and repair of components that can fail due to a variety of failure mechanisms. Our motivation is to build a model, which can be used to unveil aspects of the quality of the maintenance performed. The model we propose is motivated by imperfect repair models, but extended to model preventive maintenance as one of several “competing risks”. ...

scheduling has become an attractive area for artificial intelligence researchers. on other hand, in today's real-world manufacturing systems, the importance of an efficient maintenance schedule program cannot be ignored because it plays an important role in the success of manufacturing facilities. a maintenance program may be considered as the heath care of manufacturing machines and equip...

introduction: in health care services, preventing problems and failures is more efficient than concentrating on correcting them. repairs are always expensive, as they require highly specialized personnel and costly spare parts. regular inspecting and servicing, using manual services and checklists, would maximize the impact of maintenance and minimize the costs. it is thus important to introduc...

The goal of this work is to optimize a preventive maintenance policy for a multi-component system with imperfect monitoring, i.e the monitoring procedure may exhibit non-detection problems in case of failure.