Abstract
Abstract An experimental study was conducted in this research to evaluate the design of Automated Guided Vehicle (AGV) systems using discrete event simulation. Given the layout of work stations and several types of jobs to be processed in the system, the constituent elements of the AGV system, including the number of AGVs, the speed of the vehicles, the number of machines at each station, the number of load and unload stations, rules for selection of AGV, routing criteria, and track intersection priorities, were defined in a SIMAN model. Pilot runs were performed first to determine the values of the system parameters which may affect the performance of the AGV systems. A factorial design was then used to generate simulation experiments. Finally, a number of simulation runs were executed under different experimental conditions to obtain preliminary statistics on the following performance measures: utilization of AGVs, average number of jobs waiting in the queue for an AGV, average system throughput time, average waiting time in intersections and total waiting time in queues.
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