Lot splitting in unbalanced production systems

Lot splitting in unbalanced production systems

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Article ID: iaor20012230
Country: United States
Volume: 29
Issue: 4
Start Page Number: 921
End Page Number: 949
Publication Date: Sep 1998
Journal: Decision Sciences
Authors: ,
Keywords: lot sizing
Abstract:

This research investigates the impact of lot splitting in unbalanced production systems, under a variety of experimental conditions. Scheduling policies specifically designed for use in the presence of a long-term bottleneck, a condition frequently encountered in practice, are developed and tested. Results indicate that when steps are taken at nonbottleneck work centers to capitalize on capacity imbalances through increasing the number of setups and, hence, the variety of products produced, shop effectiveness is improved. The results also indicate that scheduling policies that tend to increase the size of the average process batch retard the overlapping of operations, which is critical to the success of the lot-splitting methodology in reducing flow time. Finally, it is shown that increasing capacity at nonbottleneck work centers along with implementation of effectiveness-oriented scheduling policies leads to improved shop performance.

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