A multiobjective evolutionary algorithm for the process planning of flexible manufacturing systems

A multiobjective evolutionary algorithm for the process planning of flexible manufacturing systems

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Article ID: iaor20051715
Country: South Korea
Volume: 29
Issue: 2
Start Page Number: 77
End Page Number: 96
Publication Date: Jun 2004
Journal: Journal of the Korean ORMS Society
Authors: , ,
Abstract:

This paper deals with the process planning of flexible manufacturing systems (FMS) with various flexibilities and multiple objectives. The consideration of the manufacturing flexibility is crucial for the efficient utilization of FMS. The machine, tool, sequence, and process flexibilities are considered in this research. The flexibilities cause to increase the problem complexity. To solve the process planning problem, in this paper an evolutionary algorithm is used as a methodology. The algorithm is named multiobjective competitive evolutionary algorithm (MOCEA), which is developed in this research. The feature of MOCEA is the incorporation of competitive coevolution in the existing multiobjective evolutionary algorithm. In MOCEA competitive coevolution plays a role to encourage population diversity. This results in the improvement of solution quality and, that is, leads to find diverse and good solutions. Good solutions means near or true Pareto optimal solutions. To verify the performance of MOCEA, the extensive experiments are performed with various test-bed problems that have distinct levels of variations in the four kinds of flexibilities. The experiments reveal that MOCEA is a promising approach to the multiobjective process planning of FMS.

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