Abstract

The integrated problem of preventive maintenance and job scheduling has drawn much attention during the past several decades. However, few researches have taken both the operating condition (OC) of jobs and imperfect maintenance (IM) into account. The OC of jobs can impact the degradation speed of machines; hence, the expected completion time of jobs. This research considers a single machine non-preemptive earliness-tardiness job scheduling problem, takes the sum of the earliness-tardiness penalty cost and maintenance cost as the objective, proposes an integrated model of job scheduling and PM considering both OC and IM. A small-scale example conducted by a total enumeration method is presented to reveal the necessity of considering the OC and IM.

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