A study on power spectral densities and correlation analysis of fluctuating wind speed near ground based on the measurement of typhoon 'Haikui'

被引：0
|
作者：
Wang X. [1 ,2 ]
An Y. [3 ]
Huang P. [2 ]
Zhou H. [2 ]
机构：
[1] State Key Laboratory Breeding Base of Mountain Bridge and Tunnel Engineering, Chongqing Jiaotong University, Chongqing
[2] State Key Laboratory of Disaster Reduction in Civil Engineering, Tongji University, Shanghai
[3] College of Architecture and Civil Engineering, Taiyuan University of Technology, Taiyuan
来源：
Zhendong yu Chongji/Journal of Vibration and Shock | 2017年 / 36卷 / 22期
关键词：
Correlation; Field measurement; Fluctuating wind speed; Power spectrum; Typhoon 'Haikui';
D O I：
10.13465/j.cnki.jvs.2017.22.020
中图分类号：
学科分类号：
摘要：
Based on the field data recorded at the heights of 10 m and 30 m in Shanghai Pudong Airport Field Measurement Basement when the typhoon Haikui was coming, the spectra of fluctuating wind speed, as well as the correlation of longitudinal, lateral and vertical components of fluctuating wind speed were studied. It is shown that: the measured spectra fit well with the Von Karman spectra, which could describe the distribution of turbulent kinetic energy of Pudong District precisely. The spectrum value is sensitive to the variation of the mean wind speed, and the turbulent kinetic energy of high wind speed is greater in inertial sub-range. Measured cross-spectrums in low and high frequencies are in good agreement with the Kaimal correction spectrum. Cross correlation coefficients ρuw at various heights remain stable with the changes of average wind speed, while cross correlation coefficients ρuw and ρvw at various heights have relatively large discrete with the changes of average wind speed, and cross correlation coefficient ρuw increases with height. © 2017, Editorial Office of Journal of Vibration and Shock. All right reserved.
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页码：125 / 130and238
相关论文
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