大多數的限制理論(Theory of Constraints,TOC)文獻中,都是探討瓶頸製程的限制驅導式排程方法(Drum-Buffer-Rope,DBR),本研究針對串聯生產線的產能做模擬抽樣研究,探討在產能受限制的情況下,限制理論(Theory of Constraints,TOC)對在製品存貨 (work-in-process,WIP)管理的影響與適用性。本研究採隨機抽樣來模擬生產線上製程站的產能,利用不同型態Beta分佈(beta distribution),分別模擬製程站不同類型的產能分佈。以生產網路流程圖案例代表串聯三個模擬製程站的生產線,採隨機抽樣來模擬製程站的每日產量,最後統計與分析每一個模擬製程站的在製品存貨累積量與成品產量。研究結果顯示在生產製造的系統中,隨機抽樣模擬法可以驗證限制理論還有受限制的產能對存貨的影響,同時證實生產線中的瓶頸製程站產能會造成前一個模擬製程站產出的成品有大量累積現象。
Most of the Theory of Constraints (TOC) literature are all about Drum-Buffer-Rope (DBR), a bottleneck process. This study is to simulate the production of tandem production line sampling in the case of capacity constraints. This paper discusses the influence and applicability of Theory of Constraints (TOC) on the management of work-in-process (WIP). In this study, random sampling was adopted to simulate the production capacity of process stations in the production line using different types of Beta Distributions, respectively represent the different types of capacity distribution of the simulation process station. To produce a network of flow chart case series of three analog process stations in line with the production line,take random sampling to simulate the daily production of process stations. Finally, statistics and analysis of each analog processing station in the inventory of finished products and finished product yield. The results of the study show that in the manufacturing system stochastic sampling simulations verify that the theory of restraints and the limited capacity impact on inventory, at the same time confirmed that the bottleneck in the production line process station production capacity will result in a simulation of process station output of a large number of cumulative phenomenon.