长单索结构的多参数流固耦合分析
MULTI-PARAMETER ANALYSIS OF FLUID-STRUCTURE INTERACTION OF LONG SINGLE CABLE STRUCTURES
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摘要: 介绍了长索结构在风场中的流固耦合振动,总结已有的流固耦合基本理论,着重介绍弱耦合问题的具体分析过程. 以100 m长索在不同拉索倾角和风向角的多参数流固耦合风振为例,应用ANSYS-CFX软件分别在层流模型和湍流模型风场中进行数值分析,得出与力学概念分析基本一致的结果.Abstract: The fluid-structure interaction (FSI) of thewind-induced vibration of cable structures is studied in this paper.The basic theory of FSI and the analysis procedure of theweak coupling are discussed. An example of the wind-induced vibration inlaminar wind model and turbulence wind model of a 100 m long cable withdifferent parameters such as inclined angle and yaw angle is computedwith the ANSYS-CFX software. The numerical results agree well with thetheoretical analysis.