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12. Throughput Rate Calculation by Cycle Time Modeling for Multi Aisles AS/RS Using Timed Petri Nets.

Author

BOUDGHENE STAMBOULI, Yassine and HAMACI, Samir

Subjects
DISCRETE systems, PERFORMANCE evaluation
Abstract

We present here a research approach for the calculation of the throughput rate for a physical configuration of automated storage and retrieval systems (AS/RS) called Multiple Aisles AS/RS (MA-AS/RS). In such configuration of discrete events system (DES) only one Storage/Retrieval machine (crane) is used for storage and retrieval operations, which has the advantage of decreasing the initial system costs (space and money) but at the same time has the disadvantage of reducing the system throughput. This important performances assessment parameter has significant repercussions on the whole system performances particularly in terms of efficiency and productivity. We consider that the crane works under random policies i.e. bins are randomly situated for each operation and various functioning modes i.e. single command, double command and multiple command cycle. Thus, our approach is based on the calculation of the system throughput for each functioning mode using a strong and formal discrete modeling tool i.e. Timed Petri Nets (TPN). [ABSTRACT FROM AUTHOR]

Published
2019

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