Multi-item Two-echelon Spare Parts Inventory Control Problem with Batch Ordering in the Central Warehouse under Compound Poisson Demand


Bayındır Z. P. , Topan E.

International Conference on Operations Research (OR 2011), Zürich, İsviçre, 30 Ağustos - 02 Eylül 2011, ss.154

  • Basıldığı Şehir: Zürich
  • Basıldığı Ülke: İsviçre
  • Sayfa Sayıları: ss.154

Özet

Multi-item Two-echelon Spare Parts Inventory Control Problem with Batch Ordering in the Central Warehouse under Compound Poisson Demand Z. Pelin Bayindir, Department of Industrial Engineering, Middle East Technical University, Engin Topan We consider a multi-item spare part two-echelon inventory system in which the central warehouse operates under an (nQ,R) policy and the local warehouses implement order-up-to S policy, each facing a compound Poisson demand. The objective is to find the policy parameters minimizing expected system-wide inventory holding and fixed ordering costs subject to an aggregate mean response time constraint at each warehouse. In this paper, we propose four alternative approximations for the steady state performance of the system; and extend a heuristic and a lower bound proposed under Poisson demand assumption to the compound Poisson setting. In a computational study, we show that the performances of the heuristic, the lower bound and the approximations are quite satisfactory