摘要：Abstract This paper studies detailed slotting in miniload automated storage and retrieval systems (miniload AS/RSs). The systems that are studied have a number of identical shelves and they handle cartons with different widths. The purpose is to find out a detailed slotting rule that makes utilisation high by reducing the fragmentation of the available storage space into small and unusable gaps. For this purpose, the paper constructs and analyses a detailed slotting rule which is based on a best fit rule, but which aligns the cartons being handled to both ends of the shelf and next to a longer carton. The rule is compared to the first fit rule and to different aligning options in order to validate its performance. The simulation results show that the rule thus constructed can give as much as a 10% saving in the utilisation when compared to the first fit rule without aligning. Aligning next to a longer carton instead of next to a shorter carton gives a 1% benefit.
关键词：Keywordswarehouse automationautomated storage and retrieval systemfragmentation avoidancesimulation
