実船における走錨時の挙動と走錨検知

概要

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Training ship Fukae maru of the Faculty of Maritime Sciences, Kobe University encountered the Typhoon No.16 (CHABA) at Ikeda-bay of Syodo-sima in Seto inland sea on August 30, 2004. At that time, she evaded the crisis of dragging anchor twice. And the maximum instantaneous wind speed 61 meters were observed through this violent stormy weather. However, it is not easy to detect accurately the ship yawing, swinging room and anchor dragging on a chart due to the limitation of reduced scale of a chart. So far, anchor dragging or threat of anchor dragging is often judged by anchoring condition such as abnormal ship yawing and abnormal relative wind direction. Our developing "Monitor System for Anchor Riding" detected the situation of the yawing movement of a ship in detail before and after dragging anchor. Then, the anchoring data that had been recorded with this system was analyzed and reproduced. The authors are expecting that this analytical result in high accuracy will be useful as one example concerning anchor dragging phenomenon in real ship under stormy weather.
社団法人日本航海学会の論文
2006-03-25