Abstract

A genetic algorithm is applied to an optimal scheduling problem for a large-scale complex manufacturing system. The system is operated basically in a job shop mode with several constraints. Each job is subject to precedence constraints among jobs. Each operation has freedom of selecting a processing machine from different kinds of parallel machines. In the design of genetic algorithm two kinds of individual description and several genetic operators are proposed to satisfy the constraints. In order to examine the effectiveness of the algorithm, a simulation is carried out on the basis of real operation data of a metal mold assembly process.

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