The travel time models of Automated Storage and Retrieval systems(AS/RS) first proposed by Hausman et. al.(1976). Hausman researched single command travel time model about Storage Retrieval machine(S/R machine) in various storage assignment. And then ...
The travel time models of Automated Storage and Retrieval systems(AS/RS) first proposed by Hausman et. al.(1976). Hausman researched single command travel time model about Storage Retrieval machine(S/R machine) in various storage assignment. And then constant acceleration travel time model was suggested Hwang et.al. Expecially in the 2000 year, research of travel time model in AS/RS was developed Chang et. al.'s exponential model.
This research validated mathematical propriety of the management problem of S/R machine in AS/RS with mathematical analysis based on its travel time and simulation analysis using Automod. After all, we could improve the performance of S/R machine based on its dwell point and turn-over distribution.