Flow shop scheduling with flexible processing times
Flow shop scheduling with flexible processing times
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DOI:
10.1007/s00291-018-0520-8
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发表时间:
2018-04
期刊:
影响因子:
2.7
通讯作者:
Matthias Bultmann;S. Knust;S. Waldherr
中科院分区:
文献类型:
--
作者:
Matthias Bultmann;S. Knust;S. Waldherr
In numerous flow shop variants, the processing times of the operations are not fixed in advance, but may be distributed with some flexibility among the machines. In this paper, we introduce a general model which is expressive enough to cover several models from the literature. While in most cases it is-hard to find a job permutation and a corresponding distribution of processing times minimizing the makespan, we show that for a fixed job permutation a best processing time distribution can be calculated in polynomial time by linear programming. Based on this, we propose a tabu search procedure using the set of all job permutations as search space. In a computational study, we show the power of the new model. Besides the classical permutation flow shop environment, we study variants with blocking, no-wait and synchronous movement constraints.