水流作用下锚泊浮体平衡位置及姿态的求解方法  

Solution method for equilibrium position of moored floating-body in current

作　　者：陈徐均[1] 施杰[1] 于群力 黄光远[1] 

机构地区：[1]解放军理工大学工程兵工程学院,江苏南京210007 [2]浙江舟山大陆连岛工程高速公路有限公司,浙江舟山316000

出　　处：《解放军理工大学学报（自然科学版）》2007年第4期362-367,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(50309018)

摘　　要：为了求解锚泊浮体在波浪中的运动响应或是受失控船舶碰撞时的运动响应,首先得求解锚泊浮体系统在不同外部环境下的平衡位置,以获得较为精确的锚链和浮体的初始状态。将锚链考虑为可拉伸的悬链线,建立锚链力的求解方程。以浮体在各个方向的所受力(矩)的平衡为收敛条件,通过迭代求解锚泊浮体系统在海流作用下的平衡位置。结果表明,系统除了在不同流向和流速作用下具有不同的平衡姿态外,还会由于投锚误差导致平衡姿态的不同。In order to solve the motion responses of a moored floating-body in waves or under the collision of uncontrollable ships, more accurate initial position of the mooring chain and the floating-body should be obtained firstly by solving the equilibrium position of the moored floating-body system in different ocean environment. Assuming the mooring chain as a flexible catenary, the solving equations of the mooring forces were established. The equivalents of forces（moments） acting on the floating-body in each direction were considered as the convergent condition, and the equilibrium position of the moored floating-body system in ocean current was obtained by iterative solving method. The results show that the moored floating system has different equilibrium positions under the action of different directions and velocity of the currents. The error of anchor throwing can also induce different equilibrium position of the system.

关 键 词：海洋工程 锚泊浮体 悬链线 平衡姿态 

分 类 号：U656[交通运输工程—港口、海岸及近海工程]