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http://dx.doi.org/10.5394/KINPR.2005.29.5.357

A Study on the Limit of Anchor Dragging for Ship at Anchor( I )  

Lee Yun-Sok (The Center of Ship Operation, Korea Maritime University)
Jung Yun-Chul (Division of Navigation System Engineering, Korea Maritime University)
Kim Se-Won (Division of Navigation System Engineering, Korea Maritime University)
Yun Jong-Hwui (Department of Maritime Police Science, Korea Maritime University)
Bae Suk-Han (Graduate School, Korea Maritime University)
Nguyen Phung-Hung (Graduate School, Korea Maritime University)
Publication Information
Journal of Navigation and Port Research / v.29, no.5, 2005 , pp. 357-363 More about this Journal
Abstract
When typhoon approaches, ship normally drops her anchor at proper anchorage for sheltering. If an anchored ship is under the influence of typhoon, she can keep her position when the external force and counter force is balanced. Where, external force is induced by wind, wave and tidal currents while counter force is induced by holding power of anchor/chain and thrust force of main engine. In this study, authors presented a method to analyze theoretically the limit of external force for the ship to keep her position without being dragged and, to check the validity of the method, applied this to the ship which had been anchored in Jinhae Bay when the typhoon MAEMI passed on September 2003.
Keywords
Marine accident; Anchoring stability; External force; Counter force; Holding power;
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