“育鲲”轮参数横摇的数值模拟及分析

The numerical simulation and analysis of parametric rolling for vessel "YU KUN"

为了保障"育鲲"轮的航行安全,对其在实际航行条件下的参数横摇现象进行数值模拟分析.使用美国船级社(ABS)给出的参数横摇判定方法进行预判,并运用国际拖曳水池委员会(ITTC)推荐的参数横摇方程进行数值模拟,预报横摇幅值.通过预判和在Matlab仿真程序中模拟预报,可知"育鲲"轮在其实际航行条件下会发生参数横摇,且幅值可达到25°以上,可能危及其航行安全.该方法可对"育鲲"轮的参数横摇进行快速、有效地判定及预报.

In order to protect the safety of the vessel ＂YU KUN＂,the numerical simulation and analysis of parametric rolling of the vessel were conducted.The susceptibility criteria for parametric rolling proposed by the American Bureau of Shipping（ABS） were used to judge the occurrence of parametric rolling.Then,the mathematic model recommended by the International Towing Tank Conference（ITTC） was employed to simulate and forecast the amplitude of parametric rolling.Using the susceptibility criteria and simulation of the mathematic model by a Matlab program,it can be seen that parametric rolling of the vessel ＂YU KUN＂ will occur while navigating,and the amplitude could even exceed 25 degrees,which may pose a threat to the safety of the vessel.The proposed method can quickly and validly judge and forecast the occurrence and amplitude of parametric rolling of the vessel ＂YU KUN＂.