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 evolution of system reliability depends on its structure as well as on the evolution of its components reliability. The latter is a function of component age during a system’s operating life. Component aging is strongly affected by maintenance activities performed on the system. In this work, we consider two categories of maintenance activities: corrective maintenance (CM) and preventive ma...

A maintenance program generated through the consideration of characteristics and failures of medical equipment is an important component of technology management. However, older technology devices and newer high-tech devices cannot be efficiently managed using the same strategies because of their different characteristics. This study aimed to generate a maintenance program comprising two differ...

This article proposes a logical support tool for maintenance management decision making. This tool is called the Graphical Analysis for Maintenance Management (GAMM), a method to visualize and analyze equipment dependability data in a graphical form. The method helps for a quick and clear analysis and interpretation of equipment maintenance (corrective and preventive) and operational stoppages....

Maintenance has during a long period of time mostly been associated with costs and stoppages and has, of this reason, acquired a connotation of being something necessary evil. Nowadays, availability, reliability and safety in the production plants are more emphasized. An increasingly number of companies replaces the current reactive, fire-fighting, maintenance strategy with proactive strategies...

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...