生管的存貨實務與理論—以TFT-LCD產業C集團包裝材為例

The Practices and Theory for the Inventory of the Production Management -A Case of TFT-LCD Industrial C Group Packing Material

卓勝利(SHENG-LI CHO)

指導教授 ： 林賜德

中原大學/商學院/企業管理研究所/碩士(2012年)

https://doi.org/10.6840/cycu201200670

摘要

研究個案應用於TFT-LCD製成品運送之包裝材原物料，因是具有損耗特性的存貨類型，由於損耗性存貨會產生額外的成本，若不加入損耗性的因素探討，會造成存貨模式結構的不正確，而作出錯誤的決策導致更大的損失。
本研究依據G. Padmanabhan & Prem Vrat 1995 年所提出的損耗性產品的訂購策略作研究，用不同的數理推導方式，討論一個製造廠所持有的商品是具有損耗特性，在需求與存貨水準相依下，探討在影響銷售率下的損耗性存貨模式，利用分析的方法來證明單位時間最小成本函數存在，並求其最佳訂購週期時間與訂購批量。另再針對G. Padmanabhan & Prem Vrat 1995方程式(9)作進一步研究，以探討利潤的最佳值的充分條件是(d2P(T)/dT2)<0，由於T>0，方程式(9)的解值永遠為負的觀點是否完備。
本研究以最小成本的角度所建構出不含原物料儲存成本模式(Ⅰ)與含原物料儲存成本模式(Ⅱ)，設定各相關成本項目並經由數理分析後，得證其各成本模式的最小成本函數是存在的，而在G. Padmanabhan & Prem Vrat 1995方程式(9)的論證，本研究以假設如銷售價(S)=購進原物料價(C)時，經由數理分析後，亦得證當銷售價等於購進原物料價時，就會有最大利潤產生。

關鍵字

最小成本 ； 需求與存貨水準相依 ； 銷售率 ； 損耗性存貨

並列摘要

The case study used in the raw materials of the TFT-LCD semi-finished products transported packaging materials, because of the perishable characteristics of the inventory models, will incur additional costs, If not join discussion of loss factors, will result in incorrect inventory model structure and make wrong decisions lead to greater losses.

In this study, based on G.. Padmanabhan, and Prem Vrat 1995 years put forward the perishable items ordering polices for research, using different mathematical deduction, to discuss a factory held product with the perishable characteristics, under the dependency of demand and inventory levels, to explore the inventory model of stock dependent selling rate, and analysis to prove that the minimum cost function of unit time, And find the optimal order cycle time and order quantity. A further equation (9), G. Padmanabhan, and Prem Vrat, 1995, for further study to explore the sufficient condition for optimum value of profit is (d2P(T)/dT2)<0, due to T>0, Whether it is true or not, while the equation (9) solution value is always negative view.

In this study, by the point of view of the minimum cost are constructed out of the not including raw materials storage cost model (Ⅰ) and including raw materials storage cost model (Ⅱ) , are set all related to the cost of the project, and through mathematical analysis to proof that its cost model of the minimum cost function is present, while in G. Padmanabhan, and Prem Vrat 1995 equation (9) demonstrated in this study based on assumptions such as sales price (S) = the purchase of raw materials price(C), through mathematical analysis, may also permit when the sales price is greater than the purchase of raw materials price, it will generate maximum profits.

並列關鍵字

perishable inventory ； minimum cost. ； the dependency of demand and inventory levels ； selling rates

參考文獻

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