The random nonlinear differential equation of ship's motion is established considering the nonlinear damping, nonlinear recover moment and random waves.
考虑非线性阻尼、非线性复原力矩和随机波浪，建立了随机横浪中船舶运动的随机非线性微分方程。
2
In comparison with linear rolling in still water, the effects of nonlinear damping and righting moment 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 righting moment were discussed, and the equations for nonlinear rolling motions in waves were established.