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中文摘要：
基于计算流体动力学（CFD）和结构有限元方法,数值模拟分析桅杆支承式细长型索膜结构风振效应.运用谐波叠加法模拟生成风速时程,并与SSTk-ω湍流模型结合作为风场计算域入口条件,运用ADINA有限元软件,数值计算考虑风致流固耦合作用的某典型细长索膜结构关键响应,包括索膜结构节点的风致位移响应、速度响应、加速度响应等,分析不同风向角对索膜结构风致效应的影响,计算获得基于结构风致位移响应的风振系数.研究成果可为工程抗风设计提供技术依据.
英文摘要：
Numerical investigation was carried out on wind-induced vibrations structure, based on computational fluid dynamics （CFD） and finite element of a slim tensioned membrane method. The wave superposition approach with Davenport spectrum was used to generate the wind velocity time series, which was combined with the SST k-ω turbulence model as the inlet boundary condition of computational wind field. By using the ADINA finite element software, the wind-induced effects including nodal displacement response, nodal velocity response and nodal acceleration response were numerically analyzed with considering fluid-structure interaction（FSI）. Moreover, the effects of incoming wind angle on the structural dynamic response were investigated in depth, and the wind vibration coefficients based on the nodal displacement responses were obtained. The numerical findings may contribute to the wind resistance design of practical engineering.
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