Variable neighborhood search heuristic for storage location assignment and storage/retrieval scheduling under shared storage in multi-shuttle automated storage/retrieval systems |
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| Affiliation: | 1. Lehrstuhl für Operations Management, Friedrich-Schiller-Universität Jena, Carl-Zeiß-Straße 3, Jena 07743, Germany;2. Schumpeter School of Business and Economics, Bergische Universität Wuppertal, Lehrstuhl für Betriebswirtschaftslehre insb. Produktion und Logistik, Rainer-Gruenter-Str. 21, Wuppertal 42119, Germany;3. Fachgebiet Management Science/Operations Research, Technische Universität Darmstadt, Hochschulstraße 1, Darmstadt 64289, Germany |
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| Abstract: | This paper examines the joint optimization of storage location assignment and storage/retrieval scheduling in multi-shuttle automated storage/retrieval systems (AS/RSs) under shared storage, in which the reuse of empty location yielded by retrieval operation is allowed. From the view of analytical model, the advantage of operational mode under shared storage is verified. A variable neighborhood search (VNS) algorithm is developed to solve the large-sized problems. Various numerical experiments are conducted to evaluate the performance of the proposed algorithm and investigate the impact of different parameters on computational efficiency. |
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| Keywords: | Shared storage Storage location assignment Storage/retrieval scheduling Variable neighborhood search Multi-shuttle AS/RS |
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