基于流固耦合的深海悬浮隧道悬浮动力响应影响研究.docx

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摘要
近年来，深海悬浮隧道作为解决海上通道建设难题的重要方式，备受关注。然而，在深海环境下，隧道与海水的流固耦合作用会引起隧道受力及振动等问题，影响其稳定性与安全性。因此，本文基于流固耦合理论及计算流体力学方法，研究深海悬浮隧道的悬浮动力响应影响及控制策略。
首先，通过建立深海悬浮隧道的数学模型，分析了流场及结构动力学特征。接着，采用ANSYS软件模拟了不同流速对隧道的悬浮动力影响，发现在高流速情况下，隧道受到明显的侧向力、升力及阻力。进一步，通过改变隧道、锚链等参数，提出了一系列控制策略，包括降低隧道高度、加强锚链强度和间距等，有效减小了悬浮动力响应的影响。
本研究为深海悬浮隧道的设计、建造及运维提供了参考依据，同时也为相关领域的深入探究提供了新思路与方法。
关键词：深海悬浮隧道；流固耦合；悬浮动力响应；控制策略；ANSYS
Abstract
In recent years, deep-sea suspended tunnels have attracted significant attention as an important solution to the difficulty of constructing sea channels. However, in the deep-sea environment, the interaction between the tunnel and seawater can cause problems such as force and vibration on the tunnel, affecting its stability and safety. Therefore, based on the theory of fluid-structure interaction and computational fluid dynamics methods, this paper studies the influence of the suspension dynamics response of deep-sea suspended tunnels and proposes control strategies.
Firstly, by establishing the mathematical model of deep-sea suspended tunnel, the characteristics of flow field and structural dynamics are analyzed. Then, ANSYS software was used to simulate the suspension dynamics impact of different flow rates on the tunnel. It was found that under high flow rate conditions, the tunnel was significantly affected by lateral force, lift force and resistance. Furthermore, by changing the tunnel, anchor chain and other parameters, a series of control strategies were proposed, including reducing the height of the tunnel, strengthening the strength and spacing of the anchor chain, effectively reducing the impact of suspension dynamics response.
This research provides reference for the design, construction and operation of deep-sea suspended tunnels, and also provides new ideas and methods for related fields.
Keywords: deep-sea suspended tunnel; fluid-structure interaction; suspension dynamics response; control strategies; ANSYS
一、引言
随着人类对深海资源和环境的认知加深，海上交通、能源、通讯等领域的建设日益重要，特别是在海洋经济发展的背景下，深海悬浮隧道作为重要的交通和...