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《Journal of Dallan Maritime University》 1989-02
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Analysis of Low-Frequency Yawing Motion of a Ship at Anchor in Wind and Current and Prediction of Dragging Anchor

Hong Biguang Wang Fengchen Hu Yuqi Jiang Weiqing (Navigation Department,DMC)  
Simulated calculation is carried out of the low frequency yawing motion of a ship at a single anchor in wind and current and the motion time history and the relationship between mooring force and yawing motion are obtained.A formula is given to estimate the safety chain length in ac- cordance with the wind force when a ship is at a single anchor.In addition,an evaluation is made of the effect of using the yaw-checking anchor or the main engine or any other equipment to con- trol the yawing motion.Verified by the real ship tests,the conclusion made is of significance for practical handling of anchoring technique.
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Chinese Journal Full-text Database 1 Hits
1 ZHANG Yu-xi,HONG Bi-guang,YANG Lin-jia,PEI Jing-tao(Navigation College,Dalian Maritime University,Dalian 116026,China);Yawing of an anchored ship in wind and current[J];Journal of Dalian Maritime University;2009-04
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