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Article Dans Une Revue International Journal of Production Research Année : 2008

Performance evaluation of family-based dispatching in small manufacturing cells

Résumé

In many practical instances, the choice whether to apply family-based dispatching or not can be decided per machine. This paper explores the impact of the location of family-based dispatching, load variations between machines, and routing of jobs on the flow time effect of family-based dispatching. These factors are explored in small manufacturing cells with and without labour constraints. An industrial case motivates the study. A simulation study is performed to assess the impact of these effects. The results show that shop floor characteristics such as routing and load variation impact the decision where to locate family-based dispatching in manufacturing cells without labour constraints. By contrast, the effect of family-based dispatching is much less vulnerable to shop floor characteristics in cells with labour constraints. Since workers are the bottleneck in these cells, it becomes less important at what machine the set-up time involving a worker is reduced. In general, there seems to be a trade-off between the positive effect of applying family-based dispatching at a (bottleneck) machine and the possible negative effect of the more irregular job arrivals at subsequent machines. The results further indicate that family based dispatching is more advantageous in cells with labour constraints than in cells without labour constraints, when both types of manufacturing cells have comparable machine utilisations.

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Dates et versions

hal-00512992 , version 1 (01-09-2010)

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Jos a C Bokhorst, Gert Nomden, Jannes Slomp. Performance evaluation of family-based dispatching in small manufacturing cells. International Journal of Production Research, 2008, 46 (22), pp.6305-6321. ⟨10.1080/00207540701466274⟩. ⟨hal-00512992⟩

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