探討(n+1)次配送給多個顧客對不良品全部報廢 之生產系統的生產批量與配送次數之最佳決策

Determining the optimal policies of (n+1) deliveries strategy for single-vendor multi-buyer integrated system with all defective items scrapped.

陳永忠(Yung-chung Chen)

指導教授 ： 邱元錫

朝陽科技大學/理工學院/工業工程與管理系/碩士(2011年)

摘要

本研究於在不完美生產系統中探討(n+1)次配送至多顧客，生產過程中所產生之不良品均全數報廢之生產批量與配送次數之最佳決策。因經濟生產批量(EPQ)所假設之需求為連續配送，而一般存貨管理課程之案例，均以完美生產或一次配送等單一情況做探討，此情況與業界差距甚大，實際的生產上一定有不良品產生，而配送的方式並非都以全部生產完成後才進行一次配送。故本研究為符合實際狀況，探討分次配送模式，期望求得最佳生產批量及最佳配送次數，使年存貨成本最小化。
本研究之配送方式，製造商於 時間生產後，先進行第一次配送，以滿足多顧客在 時間內之需求，後再以定量方式進行n次配送至多顧客。包含製造端與顧客端之存貨持有成本為數學模式建構之考量，而進行推導，在期望年存貨總成本最小化之情形下，求得最佳生產批量與最佳配送次數，以實例驗證分析，期望本研究之模式能夠因應實際狀況，提供業界在配送決策上可供參考之依據。

關鍵字

不完美生產系統 ； 最佳配送次數 ； 最佳生產批量 ； 多顧客 ； 不良品全數報廢 ； (n+1)次配送

並列摘要

This paper determining the optimal policies of (n+1) deliveries strategy for single-vendor multi-buyer integrated system. with all defective items scrapped. The economic production quantity (EPQ) assumed a continuous distribution , Inventory Management Program and the general case, are a perfect production or distribution of such single situation, and so this situation with great differences in the industry, The actual production will produce bad products, and distribution, not all the way to full production after the completion of a distribution. Therefore , this study is in line with the actual situation, of sub-sub-distribution model, expected the optimal lot size and shipments, to make annual inventory costs are minimized.
The study of distribution methods, manufacturers at the time of production, the first for a delivery to meet customer demand at the time, then a quantitative way up to n times and distribution customers. Including manufacturers and customers of inventory holding costs for the construction of mathematical models to consider, and to derive the expected total inventory costs are minimized in the case, obtain the optimal lot size and shipments, exemplify the analysis , hope that this study will respond to the actual situation, providing the industry distribution of decision-making basis for reference.

並列關鍵字

Best delivery times ； Optimal production quantity ； All defective items scrapped ； multi-buyer ； (n+1) deliveries strategy ； Imperfect production system

參考文獻

[1] Aderohunmu, R., Mobolurin, A., and Bryson, N. “Joint vendor-buyer policy in JIT manufacturing,” Journal of the Operational Research Society, 46 (3), pp.375-385 (1995).

[3] Agnihothri, S.R.and Kenett, R.S., “Integrated production-inventory models for imperfect production processes under inspection schedules”, Computers and Industrial Engineering, Vol. 44, Issue 4, pp.633-650 (2003).

[4] Beatriz Abdul-Jalbar, Jose’ M. Gutie’ rrez, Joaquı’n Sicilia, “An integrated inventory model for the single-vendor two-buyer problem”, Int. J. Production Economics, 108, pp.246–258 (2007).

[5] Cheng, T.C.E., “An economic order quantity model with demand-dependent unit production cost and imperfect production process,” IIE Transactions, Vol. 23,No. 1, pp.23-28 (1991).

[6] Chiu, Y.P. and Chiu, S.W., “An economic production quantity model with the rework process of repairable defective items”, Journal of information & optimization sciences, Vol. 24, No. 3,pp.569-582 (2003).