• ISSN 0258-2724
  • CN 51-1277/U
  • EI Compendex
  • Scopus
  • Indexed by Core Journals of China, Chinese S&T Journal Citation Reports
  • Chinese S&T Journal Citation Reports
  • Chinese Science Citation Database
Volume 21 Issue 6
Dec.  2008
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Article Contents
GAO Qingping, YAN Qipeng, LIN Yu, LUO Yu. Bi-level Programming for Optimal Inventory Control with Offsetting Replenishment Cycles[J]. Journal of Southwest Jiaotong University, 2008, 21(6): 703-708.
Citation: GAO Qingping, YAN Qipeng, LIN Yu, LUO Yu. Bi-level Programming for Optimal Inventory Control with Offsetting Replenishment Cycles[J]. Journal of Southwest Jiaotong University, 2008, 21(6): 703-708.

Bi-level Programming for Optimal Inventory Control with Offsetting Replenishment Cycles

  • Received Date: 15 Jan 2008
  • Publish Date: 25 Dec 2008
  • The inventory strategy for multiple products sharing a warehouse in a logistics system was studied.The hypotheses were that the mean total inventory cost consisted of constant ordering cost per order,fixed cost determined by the required warehouse space and variable cost determined by the stored product quantity.The offsets for replenishment cycles of multiple products were used to reduce warehouse space and the relevant cost.The upper and lower programming models are to minimize the mean total inventory cost and necessary inventory spaces,respectively;and their decision variables are the replenishment cycles and the offsets for replenishment cycles,respectively.A particle swarm optimization algorithm was designed to solve the model and calculate the optimal replenishment cycles and offsets.The effectiveness of the model and its algorithm were illustrated with a numerical example.

     

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