考虑多场耦合的碰撞载荷下水中悬浮隧道动力响应  

The dynamic response of submerged floating tunnels under collision loads considering the coupling of multiple loads

作　　者：李先澍 王加夏 张铭玮 刘昆[1] LI Xian-shu;WANG Jia-xia;ZHANG Ming-wei;LIU Kun(School of Naval Architecture and Ocean Engineering,Jiangsu University of Science and Technology,Zhenjiang 212100,China)

机构地区：[1]江苏科技大学船舶与海洋工程学院,江苏镇江212100

出　　处：《舰船科学技术》2023年第23期24-30,共7页Ship Science and Technology

基　　金：国家自然科学基金资助项目(52171311);江苏省自然科学基金面上项目(BK20191461)。

摘　　要：水中悬浮隧道通过系泊系统使其悬浮在水下一定深度处,与潜器的碰撞可能会使隧道结构产生较大运动响应,呈现大幅度的非线性位移,会使隧道失去原有的稳定性甚至对隧道安全性产生较大的影响。因此,本文开展考虑多场耦合场景下碰撞载荷作用下,水中悬浮隧道的运动响应研究。通过与文献中试验结果的对比分析,验证数值模型的有效性。建立水中悬浮隧道及其系泊系统的三维运动模型,同时通过Abaqus建立水中悬浮隧道的碰撞场景与STAR-CCM+进行双向耦合联合仿真,开展水中悬浮隧道被潜器撞击后的运动响应研究,并分析不同碰撞场景下水中悬浮隧道的运动响应变化规律。A submerged floating tunnel(SFT)is suspended at a certain depth underwater through the mooring system,and the collision with the submarine may cause the tunnel structure to produce a great motion response,presenting a large nonlinear displacement,which will make the tunnel lose its original stability and even have a great impact on the tunnel safety.Therefore,this paper studied the motion response of SFT under the action of collision load in a multi-field coupling scenario.The effectiveness of the numerical model was verified by comparative analysis with experimental results in the literature,and the three-dimensional motion model of SFT and its mooring system was established,at the same time the collision scene of SFT by Abaqus was established,and STAR-CCM+bidirectional coupling joint simulation was carried out,The motion response of SFT impacted by submarine was studied,and the variation law of motion response of SFT under different collision scenarios was analyzed.

关 键 词：水中悬浮隧道 碰撞 双向耦合 动力响应 数值仿真 

分 类 号：U459.5[建筑科学—桥梁与隧道工程]