Preventive maintenance is a broad term that encompasses a set of activities aimed at improving the overall reliability and availability of a system. Designers of the preventive maintenance schedules attempt to minimize the overall cost of system operation. There is no substitute for perfection in maintenance to ensure zero breakdowns in machine; therefore it is necessary to get a machinery brea...

aggregate production planning (app) is one of the most important issues carried out in manufacturing environments which seeks efficient planning, scheduling and coordination of all production activities that optimizes the company's objectives. in this paper, we develop a mixed integer linear programming (milp) model for an integrated aggregate production planning system with closed loop su...

The availability of the machine is one of the most important assumptions on many scheduling problems under any situation. However, in most actual life manufacturing settings a machine can be unavailable for many reasons, such as unforeseen scheduled preventive. In this paper, we study scheduling flowshops problem under ’condition based’ maintenance constraints to minimize the expected makespan ...

Despite the inter-dependent relationship between them, production scheduling and preventive maintenance planning decisions are generally analyzed and executed independently in real manufacturing systems. This practice is also found in the majority of the studies found in the relevant literature. In this paper, heuristics based on genetic algorithms are developed to solve an integrated optimizat...

Traditionally, optimal preventive maintenance strategies are derived under deterministic and constant rate demand. Using ‘‘option’’, a powerful financial derivative tool to tackle optimization problem under uncertain environment, this paper presents an analytical, option-based cost model for scheduling joint production and preventive maintenance when demand is uncertain. The manufacturing enter...