In the second generation intact stability criteria formulated by IMO, parametric rolling is one of the five failure modes. In this paper, a method of equivalent roll damping is used to study the parametric rolling of the KCS container ship. This method converts the nonlinear roll damping calculated by CFD into linear roll damping. Then the parametric rolling of the KCS container ship in regular waves is predicted based on the Rankine panel method. To compare the effectiveness of this method, the improved Ikeda’s empirical formula is used to calculate the roll damping and predict the parametric rolling, and the results of the two methods are compared with the test results of the KCS container ship. Finally, the influence of initial roll angles, the ratio of the encounter frequency \(\omega_{e}\) to the rolling natural frequency \(\omega_{roll}\) and the wave height on parametric rolling are studied. The results show that the calculation results of the equivalent roll damping method are in good agreement with the experimental results, and the parameter rolling can be predicted with high accuracy. The initial roll angle will not affect the roll angle when the stable situation is acquired, but it will affect the time to reach the steady state. The range of \({{\omega_{e} } \mathord{\left/ {\vphantom {{\omega_{e} } {\omega_{roll} }}} \right. \kern-0pt} {\omega_{roll} }}\) can be quite wide when parametric rolling occurs. The wave height will affect the range of \({{\omega_{e} } \mathord{\left/ {\vphantom {{\omega_{e} } {\omega_{roll} }}} \right. \kern-0pt} {\omega_{roll} }}\) when the parametric rolling occurs.

在IMO制定的第二代完整稳定性判据中，参数横摇是五种失效模式之一。本文采用等效横摇阻尼方法对KCS集装箱船参数横摇进行研究。该方法将CFD计算的非线性侧倾阻尼转换为线性侧倾阻尼。然后基于朗肯面板法对KCS集装箱船在规则波浪中的参数横摇进行了预测。为了比较该方法的有效性，采用改进的池田经验公式计算横摇阻尼并预测参数横摇，并将两种方法的结果与KCS集装箱船的试验结果进行比较。最后，初始滚转角的影响，遭遇频率的比值\(\omega_{e}\)研究了参数滚动的滚动固有频率\(\omega_{roll}\)和波高。结果表明，等效横摇阻尼法的计算结果与实验结果吻合较好，能够高精度地预测参数横摇。初始横滚角不会影响达到稳定状态时的横滚角，但会影响达到稳定状态的时间。\({{\omega_{e} } \mathord{\left/ {\vphantom {{\omega_{e} } {\omega_{roll} }}} \right 的范围。\kern-0pt} {\ omega_当发生参数滚动时， {roll} }}\)可能会很宽。波高会影响范围\({{\omega_{e} } \mathord{\left/ {\vphantom {{\omega_{e} } {\omega_{roll} }}} \right。\kern-0pt} {\omega_{roll} }}\)当参数滚动发生时。