Question: An AS / RS system will be designed and random storage will be used. One of the alternatives considered is for each aisle to be

An AS / RS system will be designed and random storage will be used. One of the alternatives considered is for each aisle to be 70 feet high and 310 feet long. The S / R has a horizontal speed of 425 fpm and a vertical speed of 80fpm. It takes 0.40 minutes to pick up or drop a load. The activity level for the system varies during each shift. The heaviest period of operation is when a large number of recoveries must be made. During peak times, each S/R should be capable of 30 retrievals/hour and 10 storages/hour. 100% of storages are expected to run with double action cycles. a.) Can the system handle the required workload? Why? b.) If during the period of maximum activity the number of recoveries is 28 per hour and the number of storages is 6 per hour. What will be the utilization for each S / R?

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