Controlling flexible manufacturing systems based on a dynamic selection of the appropriate operational criteria and scheduling policy

Controlling flexible manufacturing systems based on a dynamic selection of the appropriate operational criteria and scheduling policy

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Article ID: iaor20072249
Country: United States
Volume: 18
Issue: 1
Start Page Number: 1
End Page Number: 27
Publication Date: Jan 2006
Journal: International Journal of Flexible Manufacturing Systems
Authors: ,
Keywords: statistics: data envelopment analysis, simulation: applications, scheduling
Abstract:

This study presents the development of a multi-criteria control methodology for flexible manufacturing systems. The control methodology is based on a two-tier decision making mechanism. The first tier is designed to select a dominant decision criterion and a relevant scheduling rule set using a rule-based algorithm. In the second tier, using a look-ahead multi-pass simulation, a scheduling rule that best advances the selected criterion is determined. The decision making mechanism was integrated with the shop floor control module that comprises a real-time simulation model at the top control level and RapidCIM methodology at the low equipment control level. A factorial experiment was designed to analyze and evaluate the two-tier decision making mechanism and the effects that the main design parameters have on the system's performance. Next, the proposed control methodology was compared to a selected group of scheduling rules/policies using DEA. The results demonstrated the superiority of the suggested control methodology as well as its capacity to cope with a fast changing environment.

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