Designing the optimal multi-deep AS/RS storage rack under full turnover-based storage policy based on non-approximate speed model of S/R machine. (August 2017)

• Record Type: Journal Article
• Authors: Yang, Peng; Yang, Kaidong; Qi, Mingyao; Miao, Lixin; Ye, Bin
• Is Part Of: Transportation research. Volume 104(2017)
• Page Start: 113
• Page End: 130
• Publication Date: 2017-08
• Subjects: Storage rack design -- Multi-deep AS/RS -- Travel time model -- Turnover-based storage -- Acceleration/deceleration; Logistics -- Periodicals; Transportation -- Periodicals; 388.011
• DOI: 10.1016/j.tre.2017.05.010
• Languages: English
• ISSNs: 1366-5545

Abstract

Highlights: Optimize 3D compact AS/RS rack design under full turnover-based storage policy. Consider the acceleration/deceleration of storage and retrieval machine. Using the non-approximate speed model of S/R machine. The presented model is applicable for various scenarios. The optimal ratio depends on the rate of turnover in some scenarios. Abstract: The design of an optimal rack for 3D multi-deep AS/RS under full turnover-based storage policy is explored in this paper. The acceleration and deceleration characteristics of storage and retrieval (S/R) machine are considered based on non-approximate speed model of S/R machine. We divided three typical scenarios to investigate. With regards to each scenario, we derive the expected retrieval time for single-command cycles adopting exact speed model and develop the model for optimally designing 3D multi-deep AS/RS rack. From the model, we can derive the optimal rack dimensions for various scenarios more precisely. Our findings are demonstrated by a practical example.