Priority setting in closed-loop supply chain with periodic review inventory system

週期訂購模式下封閉迴圈供應鏈之優序設定

林昀墝(Yun-Chiao Lin)

指導教授 ： 蘇哲平

國立清華大學/工學院/工業工程與工程管理學系/碩士(2010年)

https://doi.org/10.6843/NTHU.2010.00125

摘要

ABSTRACT
Priority Setting In Closed-Loop Supply Chain With Periodic Review inventory system
Yun-Chiao Lin, Advisor: Professor Jack C.P.Su
Master of Industrial Engineering and Engineering Management,
National Tsing Hua University, Hsin-Chu City, Taiwan
Literature in closed loop supply chain often assumed that when new and recycle part are both available, the system should utilize recycle part first so that the system would not overly rely on the new part and defy the purpose of closed looped supply chain. The other assumption made by many closed loop supply chain literature using cycle time for assembly (CTA) as performance measurements is that when the assembly and disassembly task are both available, the assembly job is given higher priority . In this paper, we seek to investigate these assumptions.
We consider two closed-loop supply chain structures, Parallel and Mix. In the Parallel structure, the assembly and disassembly lines are separated while in Mix structure they are performed by the same production line. We study how the priority of inventory type(to use which type of inventory first) and job type(to process which type of job first) impact the mean and variance of the CTA. We find that assembly first indeed reduce the mean and variance of CTA. However, the story is quite different regarding the inventory type priority. In fact, using new part first not only significantly reduces the mean and variance of CTA but also consumes less new part. Because using new part first make the system more stable, consequently the system can achieve the same CTA with less new part inventory.
In addition, we compare the effectiveness of several alternatives to reduce CTA except priority setting including usage of common component, increase of disassembly process rate, and reduction of variation in disassembly time. The results show that setting the priority correctly is more effective than other alternatives.
Keywords: Design Chain, Priority Setting , Closed-Loop Supply Chain

關鍵字

供應鏈設計 ； 優序參數設定 ； 封閉迴圈供應鏈

並列摘要

無資料

並列關鍵字

Design Chain ； Priority Setting ； Closed-Loop Supply Chain

參考文獻

Baker, K.R., Magazine, M.J., Nuttle, H.L.W., “The effect of commonality on safety stock in a simple inventory model”, Management Science, Vol. 32,No. 8, 1986, pp 982-988.

Chung, C. J., Wee, H.M., “Green-component life-cycle value on design and reverse manufacturing in semi-closed supply chain”, International Journal of Production Economics, Vol. 113, 2008, pp 528-545.

Collier, D.A., “Aggregate safety stock levels and component part commonality”, Management Science, Vol. 28, No. 11, 1982, pp 1296–1303.

DeCroix, G.A., Zipkin, P.H., “Inventory management for an assembly system with product or component returns”, Management Science, Vol. 51, No. 8, 2005, pp 1250-1256.

Eynan, A., Rosenblatt, M.J., “Component commonality effects on inventory costs”, IIE Transactions,Vol. 28, 1996, pp 93–104.