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Integrated optimisation of the unequal-area facility layout and the flowshop group scheduling problems for a case of the garment industry

Author

Listed:
  • Sebastian Cáceres-Gelvez
  • Martín Darío Arango-Serna
  • Julián Andrés Zapata-Cortés

Abstract

The unequal-area facility layout (UAFLP) and the flowshop group scheduling (FSGSP) problems are two important problems in both research literature and industrial applications. The former considers the location of departments with different area requirements within a floor plan. The latter seeks for a sequence of product families and jobs to be processed on groups of machines, called manufacturing cells. In this paper, an integrated approach for optimising both the UAFLP and the FSGSP is presented in the case of a sportswear manufacturing company. A genetic algorithm (GA) is proposed for minimising the sum of the total material handling and the tardiness costs. The results showed that the optimisation process obtained a reduction of 6.69% of the total costs for the proposed alternative, in comparison with the current situation of the case study.

Suggested Citation

  • Sebastian Cáceres-Gelvez & Martín Darío Arango-Serna & Julián Andrés Zapata-Cortés, 2023. "Integrated optimisation of the unequal-area facility layout and the flowshop group scheduling problems for a case of the garment industry," International Journal of Industrial and Systems Engineering, Inderscience Enterprises Ltd, vol. 45(2), pages 148-172.
    • Handle: RePEc:ids:ijisen:v:45:y:2023:i:2:p:148-172
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