Experimental and numerical investigation on springing and whipping responses of a 21000TEU containership

IF 4.6 2区 工程技术 Q1 ENGINEERING, CIVIL
Xing Chang , Zhenwei Chen , Jialong Jiao , Bowen Ma
{"title":"Experimental and numerical investigation on springing and whipping responses of a 21000TEU containership","authors":"Xing Chang ,&nbsp;Zhenwei Chen ,&nbsp;Jialong Jiao ,&nbsp;Bowen Ma","doi":"10.1016/j.oceaneng.2025.121979","DOIUrl":null,"url":null,"abstract":"<div><div>In this study, the nonlinear hydroelastic behaviour in terms of ship motion and load responses of an ultra-large 21000 TEU containership in head regular waves are investigated experimentally by a segmented model equipped with a U-shaped backbone. In addition, numerical simulations by using CFD-FEM coupled method are also carried out to reproduce the hydroelastic responses for a comparative study. The ship hydroelasticity in head regular waves under various conditions of wave length, wave height and speed are comprehensively studied. Attention is mainly focused on the responses of springing and whipping phenomena. The springing responses under different orders of resonance frequency are systematically analyzed. The results indicates that for the ultra-large containership with relatively small bow flare area but large fat parallel middle body, the whipping loads contributes no much to the total loads even in high wave states. However, the springing loads can be several times large of the wave-frequency loads even in low and middle wave state, which makes the total loads to be very large and almost in a same magnitude as the whipping loads in severe waves.</div></div>","PeriodicalId":19403,"journal":{"name":"Ocean Engineering","volume":"338 ","pages":"Article 121979"},"PeriodicalIF":4.6000,"publicationDate":"2025-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Ocean Engineering","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0029801825016853","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, CIVIL","Score":null,"Total":0}
引用次数: 0

Abstract

In this study, the nonlinear hydroelastic behaviour in terms of ship motion and load responses of an ultra-large 21000 TEU containership in head regular waves are investigated experimentally by a segmented model equipped with a U-shaped backbone. In addition, numerical simulations by using CFD-FEM coupled method are also carried out to reproduce the hydroelastic responses for a comparative study. The ship hydroelasticity in head regular waves under various conditions of wave length, wave height and speed are comprehensively studied. Attention is mainly focused on the responses of springing and whipping phenomena. The springing responses under different orders of resonance frequency are systematically analyzed. The results indicates that for the ultra-large containership with relatively small bow flare area but large fat parallel middle body, the whipping loads contributes no much to the total loads even in high wave states. However, the springing loads can be several times large of the wave-frequency loads even in low and middle wave state, which makes the total loads to be very large and almost in a same magnitude as the whipping loads in severe waves.
21000TEU集装箱船弹跳响应的实验与数值研究
本文采用带u型主干的分段模型,研究了一艘21000teu超大型集装箱船在头规则波中的非线性水弹性运动和载荷响应。此外,还采用CFD-FEM耦合方法进行了数值模拟,再现了水弹性响应,进行了对比研究。全面研究了不同波长、波高和航速条件下船舶在头规则波中的水弹性。注意力主要集中在弹跳和鞭打现象的响应上。系统地分析了不同阶谐振频率下的弹簧响应。结果表明,对于船首耀斑面积较小但中间体较大的超大型集装箱船,即使在高浪状态下,横摇载荷对总载荷的贡献也不大;然而,即使在低、中波状态下,弹簧载荷也可能是波频载荷的几倍,这使得总载荷非常大,与剧烈波浪时的鞭打载荷几乎相同。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 求助全文
来源期刊
Ocean Engineering
Ocean Engineering 工程技术-工程:大洋
CiteScore
7.30
自引率
34.00%
发文量
2379
审稿时长
8.1 months
期刊介绍: Ocean Engineering provides a medium for the publication of original research and development work in the field of ocean engineering. Ocean Engineering seeks papers in the following topics.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:604180095
Book学术官方微信