岛礁地形下浮式结构动力响应分析  

Analysis of the dynamic response of floating structures in island topography

作　　者：高艳丽 黄林茜 涂佳黄[1,3] 王贯宇 黄小凡 GAO Yan−li;HUANG Lin−xi;TU Jia−huang;WANG Guan−yu;HUANG Xiao−fan(College of Civil Engineering,Xiangtan University,Xiangtan 411105,China;China Railway Construction Engineering Changsha Planning and Design Institute,Changsha 411107,China;College of Transport and Civil Architecture,Foshan University,Foshan 528225,China;Hunan Dinghao Construction Co.Ltd.,Yiyang 413002,China)

机构地区：[1]湘潭大学土木工程学院,湖南湘潭411105 [2]中铁建工长沙市规划设计院,长沙411107 [3]佛山大学交通与土木建筑学院,广东佛山528225 [4]湖南鼎豪建设有限公司,湖南益阳413002

出　　处：《船舶力学》2025年第3期363-373,共11页Journal of Ship Mechanics

基　　金：湖南省自然科学基金资助项目(2021JJ50027,2022JJ50038);湖南省教育厅科学研究项目(21A0103);广东省基础与应用基础研究基金(2022A1515240077)。

摘　　要：基于Smoothed Particle Hydrodynamics(SPH)数值模拟方法,本文对在近岸岛礁地形下不同类型波浪传播演化过程的变化情况与系缆式浮式结构动力响应情况进行分析。研究结果表明:当在岛礁前放置系缆式浮体结构时,浮式结构对非规则波的波高衰减效果会优于规则波,且波高的变化对浮式结构波高衰减效果影响不大;波浪周期的变化对浮式结构的消浪效果影响较大,而浮式结构对长周期波浪的波高衰减效果较差;不同规则波波高工况下,浮式结构的最大垂向位移、最大纵摇角度以及最大横荡值随波高的增大均呈现上升的趋势,其中最大纵摇角度对波高变化最为敏感,最大垂向位移最不敏感;不同波周期工况下,浮式结构的最大垂向位移与最大横荡值都随波周期的增大而增大,而最大纵摇角度却会减小。Based on the SPH numerical simulation method,this paper presents an analysis of the wave variation of regular and irregular waves propagating along an inshore island reef with a floating structure,and the dynamic response of a tethered floating structure under the island reef topography,respectively.The results show that the floating structure attenuates irregular waves better than regular waves when a tethered floating structure is installed in front of the shore reef,and changes in wave height have little effect on the attenuation of floating structure wave height.However,changes in wave period have a greater impact on the attenuation effect of the floating structure,and the floating structure is less effective in attenuating the wave height of long-period waves.The maximum vertical displacement,maximum longitudinal rocking angle and maximum transverse oscillation values of the floating structure all show an increasing trend with wave height increasing under different regular wave height conditions,with the maximum longitudinal rocking angle being the most sensitive to changes in wave height and the maximum vertical displacement being the least sensitive.

关 键 词：岛礁地形 SPH方法 系缆式浮体结构 动力响应 波参数 

分 类 号：U674[交通运输工程—船舶及航道工程]