強潮流下における弓削丸の操縦運動解析

概要

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Kurushima channel is one of the most difficult channels for ship navigation, because of the narrow width of the channel, the unique traffic rules and the strong and variable tidal current flows. Authors surveyed the tidal current flows and ship movement at the same time at the passage area of Kurushima channel by the observational systems of Yuge-Maru August, 1998, and analyzed the effect of the current on ship speed. Results are summarized as follows : When it was just before and after turn of tide, in spite of small current speed, ship speed is lower than theoretically estimated speed. At that time the current was observed as unsteady, so we consider this is the reason why ship speed was lowered. When it was the time that the current was the strongest, ship speed was around the theoretically estimated speed. At that time the current was quite steady and ship speed was, therefore, not lowered.
社団法人日本航海学会の論文
1999-09-25