具有一定精度的近似解析解有助于方便分析船舶非线性横摇运动及其稳定性。
An approximate analytical solution with comparative accuracy is helpful in investigating nonlinear rolling of ships and its stability.
研究了横摇和垂荡非线性耦合情况下的动力不稳定区问题。
Study on the instability regions of ship rolling with nonlinear coupling of heave and roll was presented.
本文建立了在纵浪上航行船舶的非线性参数激励横摇运动方程，研究了当升沉固有频率接近横摇固有频率时船舶的稳定性。
A nonlinear parametric excitation equation is obtained for ships in longitudinal waves, and the dynamic stability is analyzed when the natural frequency of heave and roll are approximately equal.
相据在规则横浪中的船模试验结果，研究了参激横摇运动的稳定性、时间经历和幅频响应，还讨论了横摇阻尼、初稳心高度和波浪等因素对参激横摇运动的影响。
According to the results of model tests in a regular beam wave, the motion stability, the time history of the motion and the amplitude-frequency response of the parametric roll are investigated.
相据在规则横浪中的船模试验结果，研究了参激横摇运动的稳定性、时间经历和幅频响应，还讨论了横摇阻尼、初稳心高度和波浪等因素对参激横摇运动的影响。
According to the results of model tests in a regular beam wave, the motion stability, the time history of the motion and the amplitude-frequency response of the parametric roll are investigated.
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