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.
研究了大跨空间结构脉动风荷载的随机模拟技术，基于神经网络进行了风速时程的随机模拟。
The random simulation of dynamic wind load for large-span structures is studied. Wind speed processes based on artificial neural networks are generated.
系统阐述了这种方法的分析过程，其中涉及到脉动风压规格化功率谱的推导以及脉动风荷载功率谱的计算。
Relating to the deduction of wind pressure uniform spectrum and calculation of wind load spectrum, analytical progress of M. Shinozuka method is systemically discussed.
借助随机振动理论，考虑到脉动风荷载的背景和共振分量各自特点，在平均风荷载中引入系数计入背景分量。
Considering the background section and resonant section of the wind load, the background section is included in the mean wind load, which could simplify the wind load analysis on bridges.
采用快速傅立叶变换法（FFT）编制了风荷载模拟程序，实现了随机风场的计算机仿真，仿真得到了16维脉动风荷载时程样本。
Using FFT to workout a wind load simulation program. The computer simulation of the stochastic wind field is achieved. The 16-dimensional random process is got.
根据榆林机场航站楼风洞试验结果，详细分析了大跨弧形屋面及弧形挑篷上的平均风荷载、脉动风荷载及其极值分布，研究了平均风荷载、脉动风荷载的分布特性。
Based on wind tunnel investigation of Yulin airport terminal old buildings, the mean wind loading, the dynamic wind loading and extreme value distribution of the large arc roof are studied.
水流、风、地震等脉动荷载作用在大型结构或建筑物时，经常会诱发结构振动。
When the pulsating load, such as water wind and earthquake, ACTS on a large-scale structure or building, vibration will be induced.
根据山地风场中特有的平均和脉动风速特性，研究高层建筑平均风荷载、背景和共振等效风荷载特性。
According to the particular profile of mean and fluctuating wind speed in hilly terrain wind field, mean, background and resonant wind loads of tall buildings are investigated.
根据山地风场中特有的平均和脉动风速特性，研究高层建筑平均风荷载、背景和共振等效风荷载特性。
According to the particular profile of mean and fluctuating wind speed in hilly terrain wind field, mean, background and resonant wind loads of tall buildings are investigated.
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