The aim of this paper is to propose an adequate condition-based maintenance policy to a gradually deteriorating system using on-line detection algorithms. The originality of this work is due to the fact that the parameters defining the deterioration mode can be unknown. The main purpose is to estimate these unknown parameters in order to propose an adoptive condition based maintenance policy an...

Maintenance has gained in importance as a support function for ensuring equipment availability, quality products, on-time deliveries, and plant safety. Cost-effectiveness and accuracy are two basic criteria for good maintenance. Reducing maintenance cost can increase enterprise profit, while accurate maintenance action can sustain continuous and reliable operation of equipment. As instrumentati...

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. ...

We present a maintenance scheduling problem arising from semi-conductor manufacturing which is characterized by low resource contention and multiple complex objectives and preferences. Since semi-conductor manufacturing involves a very high degree of uncertainty at the level of detailed operations, such as machine availability, yield, and processing times, generating a maintenance schedule whic...

Condition monitoring is the foundation of a condition based maintenance (CBM). To relate the information obtained from the condition monitoring to the actual state of the system, it is usually required a stochastic model. On the other hand, considering the interactions and similarities that exist between CBM and statistical process control (SPC), the integrated models for CBM and SPC have been ...

Abstract. New “enlightened” and holistic maintenance strategies are shaping the industrial world from inside, providing intelligent focused solutions where high availability, reliability safety required. Maintenance planning scheduling is an extremely daunting multi-faceted task which involves competences fairly different fields: customer support, quality, engineering, production, RAMS, cost es...

This paper deals with a condition-based maintenance policy for continuously degrading system to reduce the excessive environment degradation. This maintenance policy consists on maintaining the system with respect to a given threshold level of degradation. Such a level is measured by sequential inspections. According to statistical knowledge of degradation level, a preventive maintenance action...