Travel time models for double-deep automated storage and retrieval systems
نویسندگان
چکیده
منابع مشابه
Retrieval–travel-time model for free-fall-flow-rack automated storage and retrieval system
Automated storage and retrieval systems (AS/RSs) are material handling systems that are frequently used in manufacturing and distribution centers. The modelling of the retrieval–travel time of an AS/RS (expected product delivery time) is practically important, because it allows us to evaluate and improve the system throughput. The free-fall-flow-rack AS/RS has emerged as a new technology for dr...
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The main objective of this study is to reduce the retrieval time of a list of products by choosing the best combination of storage and retrieval rules at any time. This is why we start by implementing some storage rules in an Automated Storage/Retrieval System (Automated Storage and Retrieval System: AS/RS) fitted with a gravity conveyor while some of these rules are dedicated to storage and ot...
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Automated storage and retrieval system (AS/RS) is one of the major material handling systems, which is widely used in distribution centers and automated production environments. AS/RSs have been utilized not only as alternatives to traditional warehouses but also as a part of advanced manufacturing systems. AS/RSs can play an essential role in modern factories for work-in-process storage and of...
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In customary automated storage and retrieval systems (AS/RSs), stacker cranes (S/R machines) are used to store and retrieve loads into/from the storage cells. In this paper, the open-rack structure with unidirectionalupward mobile loads within the rack is applied in AS/RS, in which the stacker crane is only used for the retrieval operations, and the storage operations are carried out by separat...
متن کاملTravel Time Model of the Storage/Retrieval Machine for Multi-Deep AS/RS Based on Flexsim
The travel time of the S/R machine in multi-deep AS/RS was researched in this paper based on simulation methods. A flexible model of multi-deep AS/RS with 3600 kinds of plans was built and simulated aiming at the S/R machines travel time. A large number of simulation data was thus obtained, which was then used in the multiple regression analysis. Ultimately, the fitting formulas of the S/R mach...
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ژورنال
عنوان ژورنال: International Journal of Production Research
سال: 2009
ISSN: 0020-7543,1366-588X
DOI: 10.1080/00207540902796008