Transforming part-sequencing problems in a robotic cell into a GTSP

W Zahrouni and H Kamoun ()
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W Zahrouni: University of Sfax
H Kamoun: University of Sfax

Journal of the Operational Research Society, 2011, vol. 62, issue 1, 114-123

Abstract: Abstract This paper shows how to solve two-part sequencing problems in a three-machine robotic cell so as to minimize the cycle time. We start dealing with cycles whose associated part-sequencing problems do not have the structure of a travelling salesman problem (TSP). The idea behind our approach is to modify the waiting time formula and formulate the closely related modified problem as a generalized travelling salesman problem (GTSP). The other cycles to be tackled are those that have a TSP structure for their associated part-sequencing problem. The existence of common states between these cycles allows us to mix and mould all of them into a GTSP. The solution procedures, designed for both cycle classes, are merged into a single heuristic and evaluated. The computational results provided prove the efficiency of the approaches.

Keywords: scheduling; sequencing; heuristics; flexible manufacturing systems (search for similar items in EconPapers)
Date: 2011
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DOI: 10.1057/jors.2009.158

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