A Continuous-time Representation for Multi-stage Factory Design and Scheduling

Turaj Tahmassebi

Chapter 6 in Operational Research in Industry, 1999, pp 102-134 from Palgrave Macmillan

Abstract: Abstract Short-term scheduling of a multi-stage factory consisting of many parallel and competing resources is a problem encountered in many process industries, such as the fast-moving consumer goods’, pharmaceutical, food and cosmetics’ industries. In such factories, there can be from 2 to 15 packing lines, which can pack one or more formats (sizes). There are several intermediate storage resources as well as several making units. Some packing lines are dedicated to packing different formats of one product, while others can pack different products in different formats. A combination size/product is called Stock Holding Units (SKU). Packing rates depend on both SKU and line. Although it will be assumed throughout that a line packs at its constant nominal rate once started for a SKU, start-up rates are generally slower and a line may take significant time to reach full efficiency. The making units are batch or continuous processing units with finite rates/ capacities. The storage resources store intermediate and finished products. These resources may be dedicated, semi-dedicated or flexible in nature.

Keywords: Schedule Problem; Completion Time; Vehicle Route Problem; Storage Resource; Gantt Chart (search for similar items in EconPapers)
Date: 1999
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Persistent link: https://EconPapers.repec.org/RePEc:pal:palchp:978-0-230-37292-4_6

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DOI: 10.1057/9780230372924_6

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