摘要
对静水中船舶大倾角横摇稳性的特点进行了介绍,提出了一种新的计算船舶发生大倾角横摇时的静稳性力臂的计算方法,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,然后,根据重力与浮力平衡、纵倾力矩之后为零这两个条件,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,进而绘出了静稳性力臂曲线.最后,通过实例计算与分析验证了本文提出的方法是可行的.
The big angle stability in rolling of ship in still water is introduced and analyzed, and the theoretical calculational methods of the area of the transverse section are 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, the influence of the trim which acts on the wetting depth of the every transverse section caused by the asymmetry of the fore and stern of ship is considered. 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 Matlab. Then the curve of the metacentric stability arm of force is drawed. Finally, through the analysis and computation of an example, it can be found that the methods mentioned are feasible.
出处
《大连海事大学学报》
CAS
CSCD
北大核心
2004年第1期9-13,共5页
Journal of Dalian Maritime University
基金
交通部跨世纪人才基金资助项目(95050531).
