不同入射角叠加波下系泊浮体运动响应的仿真分析  

Numerical Simulation of Mooring Floating Structure Motion Response under Superimposed Waves at Different Incidence Angles

作　　者：华艾 龚希武 谢永和 潘昀 刘庭晖 HUA Ai;GONG Xi-wu;XIE Yong-he;PAN Yun;LIU Ting-hui(School of Naval Architecture and Maritime,Zhejiang Ocean University,Zhoushan Zhejiang 316022,China)

机构地区：[1]浙江海洋大学船舶与海运学院,浙江舟山316022

出　　处：《船海工程》2025年第1期20-25,共6页Ship & Ocean Engineering

基　　金：国家自然科学基金(52271293)。

摘　　要：为研究实际海况下浮式载体的运动响应,基于计算流体力学方法,对浮体建立数值波浪水槽,采用重叠网格等方法模拟载体的运动。通过对比,验证了波的有效性和模型的正确性。分别将入射角为30°、45°、60°的波与入射角为0°的波叠加后,对载体的运动响应进行仿真分析,得到了载体平台的垂荡、横摇、纵摇及系泊缆绳拉力的变化规律。结果表明,随着入射角度变大,浮体的垂荡变化不大。浮体横摇值呈现变大的趋势,相应的纵摇值则呈现变小的趋势。与入射角为30°的叠加波相比,45°和60°的叠加波的纵摇最大幅值分别减少了16.98%、19.81%。横摇最大幅值分别增加了3.43%、7.72%。载体垂荡、横摇、纵摇的振动频率随着入射角的增大而增大,叠加波的入射角为45°、60°的频率相对于入射角为30°的值分别增加了7.15%、14.28%。In order to study the motion response of the floating carrier under actual sea conditions,a numerical wave flume was established for the floating body based on CFD,and the motion of the carrier was simulated by means of overlapping grid.The validity of the wave and the correctness of the model were verified by comparison.After superimposing the waves with incidence angles of 30°,45°and 60°and waves with incidence angles of 0°,the motion response of the carrier was analyzed,and the variation laws of heave,roll,pitch and mooring cable tension of the carrier platform were obtained.The results revealed that the roll value of the floating body increases with the increase of the incidence angle while the corresponding pitch value decreases.Compared with the superposition wave of 30°,the maximum pitch of the superposition wave of 45°and 60°is reduced by 16.98%and 19.81%,respectively.The maximum roll value increased by 3.43%and 7.72%.In addition,the frequency of the carrier’s heave,roll,and pitch increases with the increase of the incidence angle,increasing by 7.15%and 14.28%.

关 键 词：叠加波 浮式结构物 运动响应 数值模拟 系泊拉力 

分 类 号：U661.1[交通运输工程—船舶及航道工程]