横摇，又称侧滚角，是指浸于水中的物体绕最长延伸方向或波浪入射方向的水平轴的旋转振荡运动；也指导航系统中用来标识目标的横向倾角，其值等于目标物体所在平面上，与艏艉线垂直的线与其在水平面的投影间的夹角。
At the same time,it gave frequency domain and time domain solutions of system equations about two motions on pure rolling and rolling coupled swaying of the ship.
对船舶作单纯横摇和耦合横荡的横摇两种运动情况分别给出了系统方程的频域解和时域解。
参考来源 - U型减摇水舱及试验摇摆台实验研究·2,447,543篇论文数据，部分数据来源于NoteExpress
严重的非线性横摇在外力或其它因素激励下极易导致船舶的倾覆。
The serious nonlinear rolling, acted by outside forces or other factors, will lead ships to capsizing.
三体船模型横摇试验包括静水中的自由横摇衰减试验、规则波中的零速横摇试验。
Free decay experiments were conducted in calm water at various model speeds and roll experiments in transverse regular waves at zero speed.
然后，根据波浪中重力与浮力平衡、纵倾力矩之和为零这两个条件来求取横摇稳性力臂值。
Finally, the values of roll stability, in accordance with the condition of the balance between gravity and buoyancy of ship in waves and also with that the sum of trim moments is zero are obtained.
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