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Journal of Applied Sciences
Year: 2008  |  Volume: 8  |  Issue: 11  |  Page No.: 2059 - 2066

Flexible Flow-Lines Model at m Machine Centers with Fuzzy Total Costs

M.B. Fakhrzad and Mehdi Heydari    

Abstract: In this study, the triangular membership functions are used for flexible flow-lines with m machine centers to examine processing-time uncertainties and to make scheduling more suitable for real applications. A methodology is developed for modeling flexible flow line scheduling with fuzzy processing times, fuzzy due dates, fuzzy set-up times, fuzzy holding costs and fuzzy shortage costs. A fuzzy scheduling model is presented and a hybrid algorithm is also designed for its solution. Finally, some numerical examples are developed and solved to demonstrate the computational efficiency of the proposed algorithm.

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