Multi-degree cyclic hoist scheduling with time window constraints

Ada Che (1) , Zhen Zhou (1) , Chengbin Chu (2) , Haoxun Chen (3)

1 NPU - Northwestern Polytechnical University [Xi'an]
2 LGI - Laboratoire Génie Industriel - EA 2606
3 LOSI - Laboratoire d'Optimisation des Systèmes Industriels

This paper deals with the multi-degree cyclic single-hoist scheduling problem with time window constraints, in which multiple identical parts enter and leave the system during each cycle. We propose an analytical mathematical model and a branch-and-bound algorithm so as to find a cyclic sequence of hoist moves that maximises the throughput. The branch-and-bound algorithm implicitly enumerates the sequence of hoist moves and requires the solution of a specific set of linear programming problems (LPPs). Computational results on benchmark instances and randomly generated test instances are presented.

Keywords: cyclic hoist scheduling; multi-degree; time window constraints; branch-and-bound

Domains: Operations Research [cs.RO]

Ada Che, Zhen Zhou, Chengbin Chu, Haoxun Chen. Multi-degree cyclic hoist scheduling with time window constraints. International Journal of Production Research, 2011, 49 (19), pp.5679-5693. ⟨10.1080/00207543.2010.503200⟩. ⟨hal-02499213⟩