A restless bandit approach for capacitated condition based maintenance scheduling

Ece Zeliha Demirci (), Joachim Arts and Geert-Jan van Houtum ()
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Ece Zeliha Demirci: TED University
Geert-Jan van Houtum: Eindhoven University of Technology

Flexible Services and Manufacturing Journal, 2025, vol. 37, issue 1, No 7, 179-207

Abstract: Abstract This paper considers the maintenance scheduling problem of multiple non-identical machines deteriorating over time. The deterioration gradually decreases a machine’s performance, which results in revenue losses due to lower output quality. The maintenance cost is dependent on the degradation state, and the number of maintenance activities that can be carried out simultaneously is restricted by the number of maintenance workers. Our main goal is to propose a heuristic with low complexity that consistently produces solutions close to the optimal strategy for problems of real size. We cast the problem as a restless bandit problem and propose an index based heuristic (Whittle’s index policy) which can be computed efficiently. We also provide a lower bound that can be computed by linear programming. We numerically compare the performance of the index heuristic with alternative policies. In addition to achieving superior performance over failure-based and threshold policies, Whittle’s policy numerically converges to our lower bound when the number of machines is moderately high and/or maintenance workload is high.

Keywords: Maintenance; Restless bandit; Whittle’s index heuristic (search for similar items in EconPapers)
Date: 2025
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Working Paper: A restless bandit approach for capacitated condition based maintenance scheduling (2022)
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DOI: 10.1007/s10696-024-09544-y

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