在供應鏈環境中生產多樣產品含報廢品n次配送策略之最佳生產週期決策

Optimization problem for multiple items production with scrap in supply chain environment with n delivery policy

郭奕裕(Yi-Yu Kuo)

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

現今產品均精緻化，故生產時均少量多樣化，本研究以多樣產品多次配送生產系統中，探討產品最佳生產批量與最佳配送之決策。在傳統存貨管理案例探討型中，大部分均假設生產線無瑕疵生產及一次配送等單一情況來做探討，所以傳統存貨管理之探討與業界實際上有段差距，在實際生產線上一定會有不良品產生，且配送方法並非全部生產完工後再進行一次全數配送，在多樣產品下，每樣產品均有不同的生產方式及配送，在追求最低或最佳總成本考量下，其生產與配送就有各種不同的方式。
本研究將以生產製造商在多樣產品分次生產後進行多次配送，以滿足顧客之需求，我們將以數學方法來推導建構整個模型，模型中含製造端與顧客端之存貨成本，期望存貨總成本最小或最佳化下，求得最佳生產批量與最佳生產週期，並以C造紙廠實際例子來驗證分析，提供業界在實際決策與應用上有較佳之參考。

關鍵字

最佳配送次數 ； 最佳生產批量 ； 報廢品 ； 多次配送 ； 多樣產品

並列摘要

Products are going exquisite nowadays, so a production with small amount of diversification is requested. This study reviews the delivery system of various products for many times. To evaluate the strategy to know what amount the production by batch and what way the delivery in order to reach the optimum. In the case study regarding the type of traditional inventory management, Conventional assumption is the indefectible production and one time delivery. So there are a lot of differences between traditional inventory model and practical conditions. It is impossible to produce goods without any defected in reality. To deliver all the done goods continuously is not always true and practical. The different way to produce and deliver goods is requested by various products in this study. Under the consideration of pursuiting the lowest and best total cost. There are different ways to products and delivery.

This research focuses on the study of producing the various goods by batch and delivering the goods separately to meet customer’s need. We will recommend and build up the analysis model by way of mathematics. The model includes the stock cost of manufacturing and customer’s site, and the objective is to derive the best production lot and the best production cycle. Practice examples are provided to demonstrate usages of research result, which should become good reference for practitioners in making such a decision.

並列關鍵字

Scrap ； n delivery policy ； Imperfect quality ； EPQ ； Multiple items production

參考文獻

[41] 王聖嘉，「探討經濟生產批量模式含不良品重工之最佳決策」，博士論文，中原大學工業工程研究所，台中(2003)。

[2] Goyal, S.K. “Integrated Inventory Model for a Single Supplier - Single Customer Problem”, International Journal of Production Research, 15 (1), 107-111(1977)

[3] Goyal, S.K. and Gupta, Y.P. “Integrated inventory models: The buyer-vendor coordination,” European Journal of Operational Research, 41 (3), 261-269 (1989)

[4] 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)

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