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Hierarchical production control of a flexible manufacturing system

โœ Scribed by Xie, Xiao-Lan

Publisher
John Wiley and Sons
Year
1991
Tongue
English
Weight
952 KB
Volume
7
Category
Article
ISSN
8755-0024

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โœฆ Synopsis

A hierarchical production control framework for a flexible manufacturing system is proposed. The machines in the system are subject to failures in a wide spectrum band. At first, failures are clustered near some discrete points on the failure spectrum in order to define the hierarchical model. Each level in the hierarchy corresponds to a discrete point on the failure spectrum. At each level, faster varying failures are modelled by their mean behaviour, and more slowly varying failures are treated as static. Then, a hierarchical controller of multiple time scale type is proposed. System control at each level is based on the work of Kimemia and Gershwin. Simulation results conclude the paper KEY WORDS Flexible manufacturing systems Hierarchical production control Machine failures Event frequencies

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