Optimal Storage Rack Design for a 3-Dimensional Compact As/Rs

32 Pages Posted: 23 Dec 2006

See all articles by T. Le-Duc

T. Le-Duc

affiliation not provided to SSRN

M. B. M. de Koster

Erasmus University Rotterdam (EUR) - Department of Technology and Operations Management

Yugang Yu

University of Science and Technology of China (USTC)

Date Written: June 23, 2006

Abstract

In this paper, we consider a newly-designed compact three-dimensional automated storage and retrieval system (AS/RS). The system consists of an automated crane taking care of movements in the horizontal and vertical direction. A gravity conveying mechanism takes care of the depth movement. Our research objective is to analyze the system performance and optimally dimension of the system. We estimate the crane’s expected travel time for single-command cycles. From the expected travel time, we calculate the optimal ratio between three dimensions that minimizes the travel time for a random storage strategy. In addition, we derive an approximate closed-form travel time expression for dual command cycles. Finally, we illustrate the findings of the study by a practical example.

Keywords: AS/RS, Warehousing, Order Picking, Travel Time Model, Compact Storage Rack Design

Suggested Citation

Le-Duc, T. and de Koster, M.B.M. René and Yu, Yugang, Optimal Storage Rack Design for a 3-Dimensional Compact As/Rs (June 23, 2006). ERIM Report Series Reference No. ERS-2006-027-LIS. Available at SSRN: https://ssrn.com/abstract=911701

T. Le-Duc (Contact Author)

affiliation not provided to SSRN

No Address Available

M.B.M. René De Koster

Erasmus University Rotterdam (EUR) - Department of Technology and Operations Management ( email )

RSM Erasmus University
PO Box 1738
3000 DR Rotterdam
Netherlands
+31 10 408 1719 (Phone)
+31 10 408 9014 (Fax)

HOME PAGE: http://www.rsm.nl/rdekoster

Yugang Yu

University of Science and Technology of China (USTC) ( email )

96, Jinzhai Road
Hefei, Anhui 230026
China

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