Rule-based production planning in flexible manufacturing systems

Rule-based production planning in flexible manufacturing systems

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Article ID: iaor19911921
Country: Netherlands
Volume: 2
Start Page Number: 5
End Page Number: 24
Publication Date: Jan 1990
Journal: International Journal of Flexible Manufacturing Systems
Authors: ,
Keywords: production: FMS
Abstract:

Production planning in flexible manufacturing may require the solution of a large-scale discrete-event dynamic stochastic optimization problem, due to the complexity of the system to be optimized, and to the occurrence of discrete events (new orders and hard failures). The production planning problem is here approached for a multistage multipart-type manufacturing shop, where each work cell can share its processing time among the different types of parts. The solution of this problem is obtained by an open-loop-feedback control strategy, updated each time a new event occurs. At each event time, two coupled problems are solved: 1)a product-order scheduling problem, conditioned on estimated values of the production capacities of all component work cells; and 2)a production-capacity planning problem, conditioned on predefined sequences of the product orders to be processed. In particular, the article aims at defining a production planning procedure that integrates both analytical tools, derived from mathematical programming, and knowledge-based rules, coming from experience. The objective is to formulate a hybrid (knowledge-based/analytical) planning architecture, and to analyze its use for multicell multipart-type manufacturing systems.

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