中文摘要：

为讨论船舶在波浪中的非线性横摇,应用非线性动力学的方法对现象进行理论分析,得到主共振情况下船舶运动稳态响应的解析解,并对实船进行稳定性分析。通过不同波浪条件下船舶非线性横摇运动的模拟计算,预报船舶在横浪中的横摇运动,预报结果与试验结果比较一致。

英文摘要：

In order to analyze the nonlinear rolling of ship in waves,the nonlinear dynamics method was used to study ship stability.By the nonlinear dynamic method,the analytical solution of the resonance steady-state responses was obtained to analyze the stability of ship.The roll movements of ship could be forecasted in beam waves through the simulation calculations on different wave conditions of ship＇s nonlinear rolling motion.The results were compared with experimental to verify the feasibility of theory calculation.