随浪中船舶大倾角横摇稳性的研究

对随浪中船舶大倾角横摇稳性的特点进行了介绍和分析，提出了一种新的研究船舶发生大倾角横摇时的稳性力臂的方法，在运用逐步逼近法计算每个横剖面的左右侧的浸深时，考虑了在横摇过程中由于船舶首尾不对称造成的纵倾对每个横剖面浸深的影响，以及横摇过程中所发生的纵倾运动对横摇稳性的影响．然后，根据随浪中重力与浮力平衡、纵倾力矩之和为零这两个条件，运用matlab数学工具语言的迭代算法求出了纵倾角，以及水线面修正层厚度，进而绘出了随浪中的稳性力臂曲线．最后，通过实例计算与分析验证了该方法是可行的．

Study on Ship Big Angle Stability in Following Seas

The big angle stability in rolling of ship in following seas is introduced and analyzed, and the study methods of the area of the transverse section is discussed when ship rolls in still water with big angle. While calculating the wetting depth of the left and right side face of the transverse section with the step by step approaching methods, take into consideration the influence of the trim which acts on the wetting depth of the every transverse section caused by the asymmetry of the fore and stem of ship, and the trim moment which acts on the transverse stability caused by the rolling motion, then in accordance with the condition of the balance of the gravity and buoyancy and the condition that the sum of the trim moment is zero, the trim angle and the thickness of the correction layer of water plane are calculated with the iterative methods of Maflab, then proceed to the next step, the curve of the metacentric stability ann of force is drawed. Finally, through the analysis and computing of an example, it can be found that the study method mentioned in this paper is feasible.