一条のレール上に配置された複数台クレーンの相互干渉および待合せに関する研究(第2報)

概要

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This study, continued from the previous one, deals with the interference of cranes as a problem of queuing.This time we changed one of the assumptions into that the cranes have the process of moving as a part of their services so that the result can be use for the more practical application. These results are shown in Fig. 7 and Fig. 8,In these diagrams n^^- expresses the average number of work waiting for their receiving services (including those which arebeing served) and ρ means the working ratio. Then in Fig. 7,for example, the case N=3,d=0.1l, ……, represents the case of three cranes whose winding-down positions are selected at random within the range of 10% of whole working length from their winding-up positions, and in Fig. 10,the case N=3,d=0.1l, …, for example, means the case of three cranes and when a crane is giving a service it occupies the range of 10% of whole working length from its winding-up position and any other cranes cannot enter this range. Three diagrams, Fig. 7 and 8,can be applied to the practical use when we want to know the effect of installing more cranes or when we look for the difference of effectivity by changing the principle of cranes' services. We also stated here on the way to decrease the interference of crances.
社団法人日本船舶海洋工学会の論文