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The optimal repair policy for an unreliable production system with limited available spare parts

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  • Brieditis, Ludwig
  • Kiesmüller, Gudrun P.
  • Malmberg, Filip

Abstract

In this study, a serial production system consisting of two machines and an intermediate finite buffer is considered. The machines have random processing times, and each machine contains one unit of a common critical component that is subject to random breakdown. Broken components must be replaced from an inventory of ready-for-use spare parts to restore machine functionality. This inventory is replenished according to a one-for-one replenishment policy with an externally given base stock level. Due to the limited availability of spare parts, the sequence in which the machines are to be repaired and whether they should be repaired immediately must be decided. The objective of our study is the maximization of the expected total discounted revenue per time unit over an infinite planning horizon.

Suggested Citation

  • Brieditis, Ludwig & Kiesmüller, Gudrun P. & Malmberg, Filip, 2026. "The optimal repair policy for an unreliable production system with limited available spare parts," European Journal of Operational Research, Elsevier, vol. 330(3), pages 800-815.
    • Handle: RePEc:eee:ejores:v:330:y:2026:i:3:p:800-815
    DOI: 10.1016/j.ejor.2025.09.007
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