摘要
本文对锚泊船在风、流作用下的低频振荡运动状态进行了模拟计算,得到了运动的时间历程及锚链张力与运动之间的关系,给出了安全锚泊时的单锚泊出链长度与风级之间的估算公式,并对使用止荡锚和主机等设备来抑制船体运动的效果进行了评价.通过实船验证和分析,得出了一些对实际工作具有指导意义的结论.
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.
关键词
航海
锚泊
船舶
振荡分析
走锚
Navigation
Manoeuvring
Anchor
Yawing
Yawing period
Yawing amplitude
Dragging anchor
Prediction
