走锚预报数学模型

本文通过对锚泊船进行受力分析和受力计算，应用船舶操纵基本方程，建立了风流浪等外力作用下，锚泊船在浅水、低速、大漂角中的运动方程。通过对船舶运动与锚链受力及锚链受力与锚抓力之间的关系进行研究，提出了一般运输船单锚泊时，在设定的海况下进行走锚预报的数学模型。并利用计算机对实船进行模拟计算，取得了与实际情况比较符合的效果。本文对研制开发走锚预报器提供了理论依据，对于提高锚泊安全性作了一种新的尝试。

Mathematical Mode for Dragging Anchor Prediction

In this paper, the author analyses and calculates the force on the anchored vessels under the effect of the wind, current and waves, Based on the equation of manoeuvring ship,a motion equation has been established in shallow water and at slow forward speed and large drift angles. By studying the relationships between the cable tension and the vessel motion and between the cable tension and the anchor holding power, a mathematical mode of dragging anchor prediction has been presented for the general merchant ships at a single anchor.Then, the author carries out the mode calculation with a computer and achieves a satistactory result which agrees with practive in some extent.