摘要
为了研究柔性浮式防撞系统受撞击后的变形与位移,提出了一种微调平衡算法。该算法利用悬链线的物理几何特性求解系统中各部件的受力,根据系统中各部件所受的合力(矩)情况实时微调系统的工作姿态。利用力(矩)的平衡原理,通过多次叠代计算求解系统在受船舶撞击后各浮筒的姿态变化、锚的位移和各时刻拦阻链的受力。理论分析及相关算例的数值结果均表明算法收敛,具有较快的收敛速度,可用于锚泊多浮体系统受船舶撞击后运动的计算。
To study the shape change and movement of the flexible floating ship collision-prevention system（FFSCS）,a new numerical calculation method was presented.This new method obtains the forces（moments） acting on each part of the system by using the physical and geometrical characteristics of a catenary.The working position of the system can be momentarily rectified according to the composition of forces（moments） acted on each part of the system.Based on the principle of force（moments） balances,this numerical calculation method could figure out the position changes of the buoys,movements of the anchors and the history of the inner forces of the block chains when a ship collides with the FFSCS by iterative calculation.The academic analysis and the numerical results of correlative examples indicate that the numerical method is convergency,and the speed of the convergence is fast enough to be used to calculate the motions of a floating multi-body system when it collides with a ship.
出处
《解放军理工大学学报（自然科学版）》
EI
北大核心
2011年第5期501-506,共6页
Journal of PLA University of Science and Technology(Natural Science Edition)
基金
国家自然科学基金资助项目(10772197
50779072)
江苏省自然科学基金资助项目(BK2011121)
教育部留学回国人员科研启动基金资助项目([2007]1108号)
关键词
近海工程
柔性浮式防撞系统
收敛性
offshore engineering
floating ship collision-prevention system
convergency
