Depo sistemindeki sipariş toplama sürecinin iyileştirilmesi

Günümüzde depolar malların saklanması ve korunmasının dışında, müşteriye hızlı ulaşımın sağlandığı merkezler haline gelmiştir. Malları müşteriye zamanında ulaştırmak ve üretimi hızlandırmak için ürünler ve hammaddeler depolardan daha verimli ve etkin bir şekilde toplanmalıdır. Bu nedenle depolama sistemlerinin optimizasyonu sağlanmaya çalışılırken, taşıma maliyetleri ve zamanlarının da enküçüklenmesi hedeflenmiştir. Yapılan çalışmada bir firma için; depo raf sisteminden sipariş çekme politikası optimize edilmeye çalışılmıştır. Öncelikle parçaların raflar içerisindeki konumları incelenmiş, en uygun toplamayı gerçekleştirebilmek için mümkün rotalar belirlenmiştir. Taşıma zamanları ve maliyetleri en küçüklenecek şekilde optimal rotalar belirlenerek yeni bir depo sistemi önerilmiş ve sipariş toplama zamanlarında iyileştirmeler yapılmıştır.

Improvement of order picking process in warehouse system

Nowadays, warehouses are not only used for protecting and keeping materials, but also serves customers as quick distribution centers. Products and raw materials have to be picked from warehouses more effectively and efficiently to transform materials in time to customers and accelerate the production. So, while providing optimization of a warehousing system, it is aimed to reduce traveling time and traveling cost. At this study, for a chosen firm, it is tried to optimize order picking strategy. Firstly, materials’ location are observed, all optimal rotation is determined to provide optimal picking. Routes which are provided to reduce the traveling cost and time are determined, a new warehousing system is proposed and order picking time is improved.

___

  • 1. Eastman, W.L. "A Note on the multi-commodity warehouse problem", Management Science, Cilt 5, No 3, 327-331, 1959.
  • 2. Gudehus, T., Principles of order picking: Operations in distribution and warehousing systems, W. Essen, Germany (in German), 1973.
  • 3. Ratliff, H.D., Rosenthal, A.S., "Order-picking in a rectangular warehouse: A solvable case of the traveling salesman problem",Operations Research, Cilt 31, No 3, 507–521, 1983.
  • 4. Goetschalckx, M., Ratliff, H.D., "Shared storage policies based on the duration stay of unit loads", Management Science, Cilt 36, No 9, 1120–1132, 1990.
  • 5. Hall, R.W., "Distance approximation for routing manual pickers in a warehouse",IIE Transactions, Cilt 25, No 4, 76–87, 1993.
  • 6. Caron Franco, Marchet Gino, Perego Alessandro "Layout Desing Gn Manual Picking System: A Simulation Approach", Integrated Man.Sys., 94- 104 , 2000.
  • 7. Petersen, C.G., Schmenner, R.W., "An evaluation of routing and volme-based storage policies in an order picking operation", Decision Science, Cilt 30, No 2, 481–501, 1999.
  • 8. De Koster, R., Van Der Poort, E., “Routing orderpickers in a warehouse: a comparison between optimal and heuristic solutions”, IIE Transactions, Cilt 30, 469-480, 1998
  • 9. McKendall, A.,R., Noble, J.,S., Klein, C.,M., “Facility Layout Of Irregular-Shaped Departments Using A Nested Approach”, Int. J. Prod. Res., 2895-2914, 1999.
  • 10. Zhang, G.Q., Xue, J., and Lai, K.K., “A class of genetic algorithms for multiple-level warehouse layout problems”, International Journal of Production Research, Cilt 40, No 3, 731-744, 2002.
  • 11. Heragu, S.S., Du, L., Mantel, R.J., and Schuur, P.C., “Mathematical model for warehouse design and product allocation”, International Journal of Production Research, Cilt 43, No 2, 327-338, 2005.
  • 12. Kim, B.-I., Heragu, S.S., Graves, R.J., Onge, A.S., “Clustering-based order-picking sequence algorithm for an automated warehouse”, International Journal of Production Research, Cilt 41, No 15, 3445–3460, 2005.
  • 13. Roodbergen, K.J., “Storage assignment policies for warehouses with multiple cross aisles”, In: Meller, R., Ogle, M.K., Peters, B.A., Taylor, G.D., Usher, J. (Eds.), Progress in Material Handling Research, pp. 541–560, 2005.
  • 14. Charnes, A., Cooper, W., “Generalizations Of The Warehousing Model”, Operations Research, 131-272, 2006.
  • 15. Prager, W., “On Warehausing Problem”, Operations Research, 504-512, 2006.
  • 16. Bellman, R., “On The Theory Of Dynamic Programming Warehousing Problems”, Management Science, 272-275, 2006.
  • 17. Dreyfus, S. E., “An Analytic Solution Of The Warehouse Problem”, Management Science, 99- 102, 2006.
  • 18. De Koster, R., Le-Duc, T., ve Roodbergen, K.J., "Design And Control Of Warehouse Order Picking: a literature review", European Journal of Operational Research, Cilt 182, No 2, 481- 501, 2007.
  • 19. Roodbergen, K.J., De Koster, R., “Routing order pickers in a warehouse with a middle aisle”, European Journal of Operations Research, Cilt 133, 32-43, 2001.
  • 20. http://www2.isye.gatech.edu/~jjb/wh/apps/ pickpath/pickpath.html