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Joint production and preventive maintenance scheduling for a single degraded machine by considering machine failures
Authors:Ali Salmasnia  Danial Mirabadi-Dastjerd
Institution:1.Department of Industrial Engineering, Faculty of Engineering and Technology,University of Qom,Qom,Iran;2.Department of Industrial Engineering, Faculty of Engineering,Eyvanekey University,Eyvanekey,Iran
Abstract:Production scheduling and maintenance planning are two interdependent issues that most often have been investigated independently. Although both preventive maintenance (PM) and minimal repair affect availability and failure rate of a machine, only a few researchers have considered this interdependency in the literature. Furthermore, most of the existing joint production and preventive maintenance scheduling methods assume that machine is available during the planning horizon and consider only a possible level for PM. In this research, an integrated model is proposed that coordinates preventive maintenance planning with single-machine scheduling to minimize the weighted completion time of jobs and maintenance cost, simultaneously. This paper not only considers multiple PM levels with different costs, times and reductions in the hazard rate of the machine, but also assumes that a machine failure may occur at any time. To illustrate the effectiveness of the suggested method, it is compared to two situations of no PM and a single PM level. Eventually, to tackle the suggested problem, multi-objective particle swarm optimization and non-dominated sorting genetic algorithm (NSGA-II) are employed and their parameters are tuned Furthermore, their performances are compared in terms of three metrics criteria.
Keywords:
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