在供應鏈環境下探討製造商於不完美生產系統下之配送策略與配送至多個購買者的最佳批量與配送次數

Determining the optimal lot size and frequency of deliveries strategy and single-manufacturer-multi-buyer in the supply chain environment with imperfect production system

劉國村(Kuo-Tsun Liu)

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

中文摘要
本研究在供應鏈環境下探討製造商於不完美生產系統下之配送策略與配送至多個購買者的最佳批量與配送次數，並且考量生產過程中有部份不良品產生，所產生的不良品無法重工修復需全部報廢。
另有關產品配送的部份，由於過去傳統基本經濟生產批量模式常假設需求為連續配送，惟該項假設並非符合所有實際情況，因為當製造商將產品配送至購買者時，除連續配送外亦經常使用定量批次的配送方式，本研究考量亦有製造商採用定量批次的運送方式，故針對該情形建立一存貨模式為單一製造商於生產後配送至多個購買者的多次配送策略存貨模式，並使用海珊矩陣（Hessian Matrix Equations）證明本研究所建構數學模式成本函數存在極小值，得到「最佳生產批量」與「最佳配送次數」兩個決策變數。並提出相關數值假設進行決策變數驗證，最後並針對相關參數值進行敏感度分析與相關模式之比較，期望本研究所建立的模式能夠提供業界作為實務上決策的參考。

關鍵詞：不良品、報廢品、定量多次配送、多個購買者、最佳生產批量、最佳配送次數。

關鍵字

不完美生產系統

並列摘要

Abstract
This study is concerned with determining the optimal lot size and frequency of deliveries strategy for a single-manufacturer multiple buyers in supply chain environment with imperfect production. That is there are some defective items produced, and they cannot be repaired and become scrap.
As to the product delivery policy, traditional economy production quantity (EPQ) model assumes continuous deliveries. However this assumption doesn’t match with actual situation. While Product delivery from producer to consumer, they’ll use fixed-amount quantity multiple deliveries method. This study considers a single-producer multiple-customers with multi-delivery policy. Hessian Matrix Equations are used to prove this constructs math model’s cost exist minimum value, and derive the best production amount and best delivery times strategies accordingly. It offers relative value assumption to prove strategy variable.
Finally, use relative parameter to proceeds sensitive analysis and relative mode comparison. We expect this research can offer the practical policy-making for companies.

Key words: Defective product, Unusable product, Mulit-delivery in a fixed-amount quantity, multi-purchasers, The best production amount, Best delivery times.

並列關鍵字

imperfect production system

參考文獻

[50] 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)。

[3] Porteus, E.L., “Optimal lot sizing, process quality improvement, and setup cost reduction”, Operations Research, 34, 137-144 (1986)

[4] Zhang, X. and Gerchak, Y., “Joint lot sizing and inspection policy in and EOQ model with random yield”, IIE Transactions, Vol. 22, pp. 41 (1990)

[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] Rosenblatt, M.J. and Lee, H.L. , “Economic production cycles with imperfect production processes”, IIE Transactions, Vol. 18, pp. 48-55 (1986)