波浪作用下弹性板的水动力响应  

Hydrodynamic Response of Elastic Plate Induced by Waves

作　　者：张宇[1,2] 张显涛[1,2] 宋炜[3] 陈永强 陈子和 ZHANG Yu;ZHANG Xiantao;SONG Wei;CHEN Yongqiang;CHEN Zihe(State Key Laboratory of Ocean Engineering,Shanghai Jiao Tong University,Shanghai 200240,China;SJTU Sanya Yazhou Bay Institute of Deepsea Technology,Sanya 572024,Hainan,China;East China Sea Fisheries Research Institute,Chinese Academy of Fishery Sciences,Shanghai 200090,China)

机构地区：[1]上海交通大学海洋工程国家重点实验室,上海200240 [2]上海交通大学三亚崖州湾深海科技研究院,海南三亚572024 [3]中国水产科学研究院东海水产所,上海200090

出　　处：《船舶工程》2023年第5期35-41,48,共8页Ship Engineering

基　　金：科技部国家重点研发计划——蓝色粮仓科技创新专项(2019YFD0900904);三亚崖州湾科技城2020年重点项目(SKJC-2020-01-006);海南省自然科学基金(520QN290);上海交通大学深蓝计划(SL2022PT103);重庆市自然科学基金面上项目(CSTB2023NSCQ-MSX0432)。

摘　　要：为准确预报聚焦波作用下弹性板的非线性动力响应,充分掌握极端波浪条件对超大型浮体动力响应的影响,选用一种基于离散模块-梁单元的水弹性分析方法,对弹性板在规则波和聚焦波作用下的不同响应特性进行研究。同时,开展水槽模拟试验,并将试验结果与理论结果进行对比,验证该水弹性分析方法的有效性。试验结果表明:基于离散模块-梁单元的水弹性分析方法在超大型浮体动力响应分析方面具有良好的准确性和简便性;在规则波作用下,随着规则波波陡和波长的增加,弹性板响应幅值增大;在聚焦波作用下,谱峰波长和最大波幅对弹性板响应的峰值和谷值有显著影响。With ocean exploitation moving to deep sea,the marine environment facing marine structures is becoming more and more severe,so nonlinear wave conditions need to be considered.As an important theoretical model for simulating extreme waves,focused waves have great significance for investigating nonlinear response characteristics of floating structures.A discrete-module-beam(DMB)hydroelastic analysis method is used to investigate the different response characteristics of elastic plate under the action of regular waves and focused waves.At the same time,experiments are carried out to compare the experimental results with the theoretical ones.Experiments show that the DMB hydroelastic method has good accuracy and simplicity.The response amplitude of elastic plate in regular waves increases with the increase of the steepness and wavelength of regular wave.The peak wavelength and peak amplitude can significantly affect the peak and trough values of elastic plate response under the action of focused waves.

关 键 词：弹性板 聚焦波 水弹性理论 离散模块 梁单元 

分 类 号：U671.99[交通运输工程—船舶及航道工程]