ship curve

Achieve a curve of ship roll motion in opened loop and the infection of certain slope of wave surface.

根据学习船舶横摇运动特性，按照某一条船的数据确定了线性横摇模型，用程序实现了在一定波倾角作用下，船舶开环横摇曲线。

After comprehensive consideration to such factors as the large amount of latitude and longitude data that was collected when ship was navigating, converted coordinate point series bending heavily, uneven distribution interval, using b-spline curve which is usually used in the CAD engineering drawing to fit track.

然后利用CAD工程制图里常用的B样条曲线拟合航迹，在综合考虑到船舶航行采集的经纬度数据量大、转换后的坐标点列弯曲度大、分布间隔也不均匀等因素后。

At first, moment of force of the fin shaft is analyzed when ship has a complex movement on the sea in this paper, and the power curve that drive the fin stabilizer is offered.

本文首先对减摇鳍在水中作复杂运动时鳍轴上的力矩进行了分析，得出转鳍功率曲线。