Abstract Large fleets of engineering assets that are subject to ongoing degradation posing the challenge how and when perform maintenance. For a given case study, this paper proposes formulation for combined scheduling planning maintenance actions. A hierarchical approach two-stage (with either uniform or non-uniform time grid) considered compared each other. The resulting discrete-time linear ...

In the process industry, plant production is completely halted every so many years for large-scale maintenance comprising inspection, repair and overhaul. It paramount that this shutdown completed according to planning, which requires timely availability of replacement parts. setting, we present a spare parts optimization model algorithm includes cost-time trade-off precedence constraints betwe...