Modeling and evaluating the AVS/RS with tier-to-tier vehicles using a semi-open queueing network

Xiao Cai, Sunderesh S. Heragu and Yang Liu

IISE Transactions, 2014, vol. 46, issue 9, 905-927

Abstract: The Autonomous Vehicle Storage and Retrieval System (AVS/RS) with tier-to-tier vehicles is modeled as a semi-open queueing network (SOQN). Different storage/retrieval requests in the AVS/RS are modeled as different classes of customers in the SOQN model. Analyzing multiple configurations of an SOQN via computer simulation is time-consuming. Therefore, this article uses some analytical methods to evaluate the performances of a multi-class, multi-stage SOQN with general service time and interarrival time distributions. Two synchronization policies are also compared and the results show that an AVS/RS with virtual synchronization has a better performance than that with physical synchronization.

Date: 2014
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Citations: View citations in EconPapers (13)

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DOI: 10.1080/0740817X.2013.849832

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