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Optimal production output and frequency of rest-breaks for a worker subjected to fatigue

Author

Listed:
  • Adel E. Alshayji
  • Mohammad A. Darwish
  • Khaled A. Alali

Abstract

It is reported by many researchers that the quality of a produced item deteriorates and work-related incidents increase when a worker is subjected to high level of fatigue at the workplace. As a direct consequence, the daily production yield of the worker decreases which, in turn, reduces the profit of a company. Some authors suggested short breaks at workplace so that the worker overcomes fatigue and improve productivity. In this paper, we mathematically study this relationship and develop a model that finds the optimal work-rest schedule such that the daily production output of a worker is maximised. We assume that the worker fatigue increases exponentially during work. Unlike the models used in the literature, the reduction in the worker fatigue level is modelled by utilising concepts in the preventive maintenance engineering literature. This simplifies the solution method significantly.

Suggested Citation

  • Adel E. Alshayji & Mohammad A. Darwish & Khaled A. Alali, 2022. "Optimal production output and frequency of rest-breaks for a worker subjected to fatigue," International Journal of Operational Research, Inderscience Enterprises Ltd, vol. 45(1), pages 125-139.
    • Handle: RePEc:ids:ijores:v:45:y:2022:i:1:p:125-139
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