The characteristics of fluctuating wind load is investigated by using LES numerical simulation and wind tunnel test. Then the fluctuating wind load model is build up.4.
3.研究和分析了悬挑屋盖的脉动风荷载特性,并在此基础上确立了考虑特征湍流影响的脉动风荷载模型。
参考来源 - 悬挑屋盖的风荷载模拟与气动控制研究Firstly, according to the complex mode analysis theory of random vibration, high-rise structures are discretized to multiple degrees of freedom system. The formulas are attained, which are employed to calculate the response of the structure-MTMD subjected to pulsating wind load.
首先，本文采用随机振动的复模态理论，将高耸结构离散成多自由度体系，推导了在脉动风荷载作用下的结构—MTMD系统的风振响应计算公式。
参考来源 - 复合MTMD控制高耸结构风振研究·2,447,543篇论文数据，部分数据来源于NoteExpress
首先建立了脉动风荷载的功率谱密度函数矩阵。
The matrix of power spectral density function of fluctuating wind load is established first.
经计算在脉动风荷载作用下，塔顶将产生较大的振幅。
According to the analysis, the amplitude of oscillation of the tower top would be reasonably large under the fluctuating wind.
应用POD法识别作用在结构表面的脉动风荷载的时频域特性。
The proper orthogonal decomposition(POD) technique was applied to identification random wind pressure time or frequency domain specific property.
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