探討含隨機性當機，(n+1)次配送，和不良品完全重工修復之最佳生產時間

Determining production run for an (n+1) multi-delivery production-shipment system with random breakdown and perfect rework

郭鈞騏(Chun-Chi 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(2013年)

摘要

本研究探討整合單一產品含機器隨機性當機並(n+1)多次配送且完美重工之最佳生產時間，為兩次生產，兩次配送。假設在不完美的生產過程中，會產出不良品，待生產過程結束後，始可進行重工，本研究假設為完美重工，意即所有不良品皆可完全重工修復為良品。為了更符合業界實際情況，本研究將傳統EPQ(Economic Production Quantity)模型的連續配送假設為(n+1)次配送，後針對此問題建立數學模式。本研究針對上述假設建立三種數學模式：(1)情況一:當機情況發生在第一次生產過程中(第一次配送前)(2)情況二: 當機情況發生在第二次生產過程中(第一次配送後)(3)情況三:第一、二次生產過程皆不含當機情況發生。
最後整合此三種數學模式提出數值例子來驗證，並針對所需參數值做敏感度分析，期望本研究的數學模式能符合現今產業實際之情況，以供業界作為決策之參考。

關鍵字

最佳生產時間 ； 不良品完美重工 ； (n+1)多次配送 ； 機器隨機性當機

並列摘要

This study investigated the production run time of a single production containing the random machine breakdown, (n+1) multiple of delivery and perfect rework, the two-stage production and two-stage delivery. Assuming an imperfect production process that will produce defective products, and they can all be reworked and repaired at the end of the production process. In actual situation the traditional EPQ (Economic Production Quantity) model continuous distribution assumption is not practical, we adope (n+1) multiple distribution to address it and build mathematical model for this problem. We study three types of mathematical models based on the above assumptions: (1) when the machine breakdown in the first stage of the production process (before the first delivery) (2) when the machine breakdown in the second stage of the production process (after first delivery), and (3) no breakdown happens.
Finally, integration of these three models are done, and numerical examples validation are provided and sensitivity analysis for the different parameter values are conducted, this study is expected to meet the actual situation of the industry today, and the results can be provided as a reference for their decision-making.

並列關鍵字

(n +1) multi-delivery ； Randomness machine breakdown ； optimal production run time ； defective items with perfect rework

參考文獻

[50] 張智凱，「研究多樣產品不完美重工系統的配送與生產週期決策與含當機且完全重工之多次配送最佳生產策略」，碩士論文，朝陽科技大學工管所，台中(2012)。

[49] 潘農，「整合單一供應商與多個買家在不良品完美重工之生產系統下(n+1)次配送與整合多樣產品生產可重工修復並多次配送的最佳生產與配送策略」，碩士論文，朝陽科技大學工管所，台中(2011)。

[29] Kuang-Ku Chen, Yuan-Shyi Peter Chiu and Ming-Hon Hwang. Integrating a cost reduction delivery policy into an imperfect production system with repairable items. International Journal of the Physical Sciences Vol. 5(13), pp. 2030-2037, 18 October, (2010)

[1] Affisco, J.F., Paknejad, M.J., Nasri, F. Quality improvement and setup reduction in the joint economic lot size model. European Journal of Operational Research, 142 (3), 497-508. (2002)

[2] Abdul-Jalbar, B., Gutierrez, J., Sicilia, J. Integer-ratio policies for distribution/ inventory systems. International Journal of Production Economics, 93-94, pp. 407-415. (2005)