波浪作用下柔性浮圈动力响应模型试验  

Model Test on Dynamic Response of Flexible Floating Collar Under Wave Action

作　　者：李刚 张显涛[2,3] 刘博 崔少云 陈杨明 刘旭东 张一帆 刘瀚昱 付登锋 LI Gang;ZHANG Xiantao;LIU Bo;CUI Shaoyun;CHEN Yangming;LIU Xudong;ZHANG Yifan;LIU Hanyu;FU Dengfeng(China Power Engineering Consulting Group Co.,Ltd.,Beijing 100011,China;State Key Laboratory of Ocean Engineering,Shanghai Jiao Tong University,Shanghai 200240,China;Yazhou Bay Institute of Deepsea Technology,Shanghai Jiao Tong University,Sanya 572024,Hainan,China;Key Laboratory of Marine Environment and Ecology,Ministry of Education,Ocean University of China,Qingdao 266100,Shandong,China)

机构地区：[1]中国电力工程顾问集团有限公司,北京100011 [2]上海交通大学海洋工程国家重点实验室,上海200240 [3]上海交通大学三亚崖州湾深海科技研究院,海南三亚572024 [4]中国海洋大学海洋环境与生态教育部重点实验室,山东青岛266100

出　　处：《中国海洋平台》2025年第2期1-8,共8页China offshore Platform

基　　金：中国电力工程顾问集团有限公司科技项目“薄膜腔型海上漂浮式光伏支撑结构及组件耐候性技术研究”(编号:DG2-A03-2022)。

摘　　要：为探究大型柔性浮圈结构在波浪中的结构变形与运动响应规律,在拖曳水池中针对规则波与不规则波波况开展模型试验。浮圈模型通过4根钢缆水平固定于拖车上,采用Qualisys系统捕捉浮圈上若干测点的位置信息,并通过单分力传感器采集系泊缆张力,同时记录模型附近水域的波面变化。试验分析规则波作用下浮圈不同位置垂向和纵向运动响应幅值算子(Response Amplitude Operator,RAO),对不规则波作用下浮圈的运动与变形进行频谱分析,并对系泊缆张力在规则波与不规则波中的响应特性进行探究。结果表明:模型背浪侧波高明显低于入射波波高;浮圈弹性变形在不同频率下表现出不同的模态;浮圈垂向运动响应谱显示迎浪侧幅度大于背浪侧,而侧边点最小;系泊缆张力谱在低频段随入射波频率升高而减小,且存在高于波频的第2个峰值。该研究为了解大型柔性浮圈在不同波浪条件下的运动特性和水动力响应提供参考。In order to investigate the structural deformation and motion response of large flexible floating collar in waves,a model test is conducted in a towing tank for both regular and irregular wave conditions.The floating collar model is fixed horizontally to the trailer using four steel cables,the displacements of the test points on the collar are captured using the Qualisys system,and the mooring force is measured using a single force sensor,while the wave elevation near the model is recorded by wave gauges.The Response Amplitude Operator(RAO)of the vertical and longitudinal motions of different locations on the floating collar under regular waves is analyzed by test,the spectral analysis is conducted for the motion and deformation of the floating collar under irregular waves,and the responses of the mooring force under both regular and irregular waves are explored.The results show that:the wave heights on the downstream side of the model are significantly lower than those of the incident waves;the elastic deformation of the floating collar exhibits different modes at different frequencies;the vertical motion response spectrum of the floating collar shows that the amplitude at the upstream side is greater than that at the downstream side,while the lateral point is of the smallest amplitude;the mooring force spectrum decreases with the increase of the incident wave frequency in the low-frequency range,and there is a second peak above the wave frequency.The study offers meaningful insights into the dynamic behavior and hydrodynamic response of large flexible floating collar under different wave conditions.

关 键 词：柔性浮圈 动力响应 水弹性响应 水池试验 

分 类 号：P75[天文地球—海洋科学]