台风-浪-流耦合作用超大浮体水弹性响应分析方法  

An alysis method for hydroelastic response of very large floating structure under typhoon-wave-current coupling effect

作　　者：柯世堂[1,2] 朱庭瑞 李文杰[1,2] 陈静[1,2] 任贺贺 员亦雯 KE Shitang;ZHU Tingrui;LI Wenjie;CHEN Jing;REN Hehe;YUN Yiwen(Department of Civil and Airport Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 211106,China;Jiangsu Airport Infrastructure Safety Engineering Research Center,Nanjing University of Aeronautics and Astronautics,Nanjing 211106,China)

机构地区：[1]南京航空航天大学土木与机场工程系,江苏南京211106 [2]南京航空航天大学江苏省机场基础设施安全工程研究中心,江苏南京211106

出　　处：《哈尔滨工程大学学报》2024年第7期1231-1241,共11页Journal of Harbin Engineering University

基　　金：国家自然科学基金NSFC-RGC合作研究重点项目(52321165649);国家自然科学基金项目(52078251);国家重点研发计划(2019YFB1503701);江苏省杰出青年科学基金项目(BK20211518);江苏省自然科学基金项目(BK20210309)。

摘　　要：海上机场超大浮体结构在台风等极端海洋环境下的动态响应准确预测是保障其安全性能的关键前提,其难点在于准确构建中/小尺度复杂流场与浮体结构的流固耦合计算模型。本文提出了一种基于中/小尺度嵌套的海上机场超大浮体水弹性响应分析方法,二次开发实现了台风-浪-流耦合模拟,分析了超强台风“莫兰蒂”途经海上机场超大浮体全过程台风-浪-流时空演变规律;采用中/小尺度流场嵌套技术计算水动力和气动力,代入结构动力学方程进行双向迭代解耦求解;通过算例分析了台风-浪-流耦合作用下浮体结构水弹性响应及影响机制。研究表明:本文提出的方法能够有效地预测此类极端环境下超大浮体结构水弹性响应。Accurate prediction of the dynamic response of a very large floating structure(VLFS)at a marine airport during extreme marine conditions,such as typhoons,is essential for ensuring safety performance.The challenge lies in accurately constructing a fluid-structure coupling calculation model for the medium/small-scale complex flow field and the floating structure.This paper presents a hydroelastic response analysis method for VLFS at a marine airport based on medium/small-scale nesting.The method begins by implementing a typhoon-wave-current coupling simulation through secondary development and analyzing the space-time evolution of typhoon-wave-current interactions on the VLFS as super typhoon Meranti passed over the marine airport.By integrating these calculations into the structural dynamics equation,a bidirectional iterative decoupling solution is obtained.Ultimately,numerical examples are used to analyze the hydroelastic response and the influence mechanism of the floating structure under typhoon-wave-current coupling conditions.The results show that the proposed method can effectively predict the hydroelastic response of a VLFS in such extreme environments.

关 键 词：台风 台风-浪-流耦合 中/小尺度模拟 海上机场 超大浮体 水弹性 分析方法 流固耦合 

分 类 号：U661.1[交通运输工程—船舶及航道工程]