The angle of list will reduce the rightingmoment and stability of the ship so as to affect the safety of the ship.
当船舶的重心偏离中线面时，船舶会出现横倾角，该横倾角的存在将使复原力矩减小，稳性降低，对船舶不利。
2
In comparison with linear rolling in still water, the effects of nonlinear damping and rightingmoment on ship's rolling motions were analyzed.
通过与静水中线性横摇运动的比较，分析非线性阻尼力矩和非线性复原力矩对船舶横摇运动的影响。
3
Firstly, mathematical expressions of nonlinear damping and nonlinear rightingmoment were discussed, and the equations for nonlinear rolling motions in waves were established.