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Modelling and analysis of service parts logistics systems

Author

Listed:
  • Fernando Tovia
  • Robert M. Brooks
  • C. Richard Cassady
  • Manuel D. Rossetti

Abstract

Many organisations purchase equipment that is subject to unpredictable failures to carry out their services. When these breakdowns occur, maintenance technicians restore the equipment in a timely fashion either through repair or the installation of spare parts. In this research, the behaviour of the service parts logistics system (SPLS) is approximated with a modified M/G/1 HOL queuing model. Then, the costs structure of the SPLS is defined and approximated with a mathematical model that captures the interdependence of the inventory policy and the technician assignment. A heuristic 'assign locations' is implemented based on the modified M/G/1 HOL queuing, the costs model and a genetic algorithm to search for the near-minimum cost technician assignment given a fixed technician's vehicle inventory policy.

Suggested Citation

  • Fernando Tovia & Robert M. Brooks & C. Richard Cassady & Manuel D. Rossetti, 2011. "Modelling and analysis of service parts logistics systems," International Journal of Operational Research, Inderscience Enterprises Ltd, vol. 10(1), pages 60-81.
    • Handle: RePEc:ids:ijores:v:10:y:2011:i:1:p:60-81
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