存貨模型大多使用微積分的方式進行求解,因為算出的結果能有很精準的數值,但微積分的求解方式,除了具有不容易理解的狀況外,還有是否能真實反映出現實狀況等問題。在實務下,我們所購買的產品,因為運輸等相關問題,必須要大量購買,或是具有最低購買量以及單位需為整數等狀況產生,這時原本的答案只能夠給予最適合的變數結果,而無法符合真實情況,本研究將討論,使用差分方法,讓其結果是否能更加符合現實的需求,是否能增加更多的產出,讓公司創造更多利潤。 本研究模型根據Teng et al. (2013) 所發表的三階整合生產與庫存之供應鏈系統為基礎進行計算,其結果的四個決策變數,取前後各5筆的數值進行檢驗,並且針對結果是否如同過去所認定的四捨五入觀念,來判斷訂購的數量。再與陳竑廷(2013)以微積分方法針對此三階模型為基礎進行推導,並對此結果採用交付次數取整數解方式,比較各變數與差分方法後的結果是否相同。 研究結果發現,部份情況能滿足算術幾何平均不等式及微積分方式四捨五入的變數結果,但有範例顯示雖然差分方法的成本會提高,卻能夠提高變數的數量,像是買家最大允許缺貨量從範例的結果來看,普遍下都會提升,此時對公司而言是有利的,將能夠為公司未來創造更多的利潤。
Calculus method is often used to solve inventory model, because the results are calculated to have an accurate value. Except calculus method have not easy to understand the situation, and it can't truly reflect the real situation and other issues. In the reality, we must purchase a lot of products, because transportation cost or a minimum purchase cost is required for the integer unit and other conditions to produce. When the answer can only be given to the optimal solution, but doesn't conform to the real situation. This research will explore to use difference method to solve the model, whether the results are found to more compliance with realistic demand, and add more output, so that the company can create more profit. Our model is according to Teng et al. (2013) by the "Optimal economic order quantity for buyer-distributor-vendor supply chain with backlogging derived without derivatives" as the basis for calculation. Four decision variables are used before and after taking five units doing the count. We compare this research's results with Chen's results using calculus method for this model that are the same or different. The results find that most cases to meet the variable results of the arithmetic and geometric mean inequality and calculus equations rounding mode. Although there are examples show that although the difference method's cost will increase. But it can increase the number of variables, such as the maximum allowable Out of the amount of buyers from the results of examples, the general will be under the promotion, the company at this time is beneficial, and can create more profits for the company in the future.
為了持續優化網站功能與使用者體驗,本網站將Cookies分析技術用於網站營運、分析和個人化服務之目的。
若您繼續瀏覽本網站,即表示您同意本網站使用Cookies。