Module modeling and economic optimization for large-scale AS/RS
WSC '89 Proceedings of the 21st conference on Winter simulation
WSC '89 Proceedings of the 21st conference on Winter simulation
Precise modeling and analysis of large-scale AS/RS
WSC '94 Proceedings of the 26th conference on Winter simulation
Design and cost-effectiveness analysis of large-scale AS/RS-AGV systems
WSC '93 Proceedings of the 25th conference on Winter simulation
Generalization of an AS/RS model in SIMAN/CIMENA
WSC '93 Proceedings of the 25th conference on Winter simulation
Performance analysis of automatic storage and retrieval systems—a comparative approach
WSC '88 Proceedings of the 20th conference on Winter simulation
Performance analysis of miniload systems
WSC '86 Proceedings of the 18th conference on Winter simulation
Introduction to Simulation Using SIMAN
Introduction to Simulation Using SIMAN
A simulation model and analysis: Integrating AGV's with non-automated material handling
WSC '84 Proceedings of the 16th conference on Winter simulation
Efficient module-based modeling for a large-scale AS/RS-AGV system
WSC '96 Proceedings of the 28th conference on Winter simulation
Simulation of distribution systems: simulation and analysis of non-automated distribution warehouses
Proceedings of the 32nd conference on Winter simulation
Proceedings of the Winter Simulation Conference
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A method of modeling large-scale AS/RS-AGV systems is proposed in an attempt to describe the AS/RS precisely and flexibly in which a lot of items are stored and retrieved. The system considered in this study consists of the large-scale AS/RS with stacker cranes, the looped-track AGV system, aisle conveyors connecting these two systems, and incoming and outgoing conveyors. There are two major stages to model large-scale AS/RS-AGV systems flexibly and execute simulation experiments. The first stage is to generate a simulation program by inputting the selected parameters such as the number of banks, the number of bays, the number of levels of AS/RS, and the number of AGVs. The second stage is to perform simulation experiments. In the proposed model, every item number put on each rack, the corresponding number of cases for each item, the time of arriving at the warehouse, and the time of departing from the system are stored and recorded. Regarding a large-scale AS/RS system, three particular types of the rack arrangement, which have the same number of racks inside the warehouse, are analyzed to examine their performance. The analysis is performed using both average flowtime and equivalent annual cost as performance measures.