We study an inspection and replacement policy for a system when maintenance actions are executed at times or “visits” with fixed, periodic schedule. Then, the novel focus of paper is not to schedule but what known times. Violations (defaults) may occur because time resource limited. The model motivated by typically used high-value, engineered systems e.g. windfarms, transportation systems, manu...

In this article we give an overview of the literature on multi-component maintenance optimization. We focus on work appearing since the 1991 survey A survey of maintenance models for multi-unit systems by Cho and Parlar (1991). This paper builds forth on the review article by Dekker et al. (1996), which focusses on economic dependence, and the survey of maintenance policies by Wang (2002), in w...

In broad terms, maintenance optimization models includes the mathematical models focused on finding either the optimal balance between costs and benefits of maintenance or the most appropriate time to execute maintenance. Parameters often considered in this optimization are the cost of failure, the cost per time unit of downtime, the cost (per time unit) of corrective and preventive maintenance...

The definitions of optimal preventive and corrective maintenance of electric power distribution networks can be seen as a special case of a knapsack problem. This paper proposes a dynamic programming approach to deal with this problem. The approach is developed for one or more years of planning horizon. Case studies compare the optimal dynamic programming approach with an heuristic method.

The production system is unreliable, therefore, prone to random failures directly affecting the products quality. machine status affected by variation and its use over time. In this work a new maintenance strategy with corrective, imperfect perfect employed when process respectively in control, surveillance, critical stages. We increase reliability of subsequent reduction non-conformal items. S...

Large-scale belt conveyor systems are widely involved in medium and long distance transport of bulk material. The spatially distributed idler rolls are a great challenge to maintain the reliability of the conveyor systems. Automation of maintenance in intelligent ways provides a promising solution to replace traditional corrective maintenance. This paper further elaborates the concept of intell...

With the rapid growth of wind energy installed capacity, optimized maintenance has gained increasingly attentions from both researchers and wind farm owners. Conditionbased maintenance (CBM) has been introduced to the wind energy industry in order to ensure the availability and safety of the wind energy conversion (WEC) system, while minimize the operating and maintenance (O&M) costs. In this p...