风浪环境下的岛礁超大浮体水弹性响应分析  

Hydroelastic analysis of VLFS near islands in typhoon wave environment

作　　者：孙泽 田超[1,2] 丁军 刘小龙[1,2] 徐道临 张海成[3] 蔡志文 SUN Ze;TIAN Chao;DING Jun;LIU Xiao-long;XU Dao-lin;ZHANG Hai-cheng;CAI Zhi-wen(Fisheries Big Data Center of South China Sea,Zhanjiang 524000,China;China Ship Scientific Research Center,Wuxi 214082,China;Centre for Marine Technology of Hunan University,Changsha 410082,China)

机构地区：[1]湛江湾实验室南海渔业大数据中心,广东湛江524000 [2]中国船舶科学研究中心,江苏无锡214082 [3]湖南大学深海装备研究中心,长沙410082

出　　处：《船舶力学》2020年第8期1024-1035,共12页Journal of Ship Mechanics

基　　金：工信部高技术船舶科研项目([2016]22,[2019]357);江苏省自然科学基金项目(No.351510008K0708LA00);国家重点研发计划项目(No.2017YFB0202701);南方海洋科学与工程广东省实验室(湛江)(湛江湾实验室)资助项目(ZJW-2019-08)。

摘　　要：在近岛礁和近岸复杂地形环境中,超大型浮式结构物(VLFS)的设计和部署需要解决极端波浪环境下的水弹性响应问题,而台风是引发南海极端波浪的主要原因。本文采用一种多重网格技术来计算岛礁泻湖内的海浪参数,计算结果得到了岛礁实测波浪数据的验证。同时计算了两次台风过境时泻湖内的非均匀波浪参数,作为VLFS水弹性响应分析的入射波条件,将两种极限波浪环境下的VLFS模块运动和连接器载荷进行了对比,可为近岛礁VLFS的结构安全设计与优化提供参考。When a very large floating structure(VLFS) is deployed near islands or a shoreline in a complicated geographical environment, it will be troublesome to tackle such a fluid-structure interaction problem, particularly in an extreme typhoon wave environment. In the present paper, the hydroelastic responses of a VLFS deployed in a lagoon area is investigated using a multi-grid nested algorithm for wave propagation, in conjunction with a hydroelastic analysis procedure to consider the effect of non-uniform incident waves. Numerical prediction results of wave propagation during the passage of Typhoon Kalmaegi in September of 2014 are compared with on-site measurement data to verify the wave model. The non-uniform wave parameters induced by Typhoon Kalmaegi and the Super Typhoon Haiyan are used as the extreme incident wave conditions. The module motions and connector load in typhoon wave environments are predicted to provide information and guidance for the design, optimization and safety assessment of the structure of the multi-module VLFS near islands and reefs.

关 键 词：VLFS 水弹性 台风浪 多重网格 近岛礁 

分 类 号：U661.3[交通运输工程—船舶及航道工程]