Analysis of Aeolian Vibration on Transmission Line Based on Analytical Model

2nd International Symposium on Resource Exploration and Environmental Science

生态环境科学

You, Yi^1 ; Xie, Heng^1 ; Zhang, Wei^1 ; Zhang, Long^1 ; Yan, Zhitao^2 ; Liu, Xinpeng^2

State Grid Xinjiang Electric Power Co. Ltd, Electric Power Research Institute, Urumqi

830063, China^1

School of Civil Engineering and Architecture, Chongqing University of Science and Technology, Shapingba District, Chongqing

401331, China^2

关键词: Aeolian vibration;    Analytical method;    Calculation results;    Correction coefficients;    D' Alembert's principle;    Energy balance method;    Environmental conditions;    Non-linear motions;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/170/4/042104/pdf
DOI  :  10.1088/1755-1315/170/4/042104

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

To reveal the mechanism of aeolian vibration on transmission line, the steady amplitude of aeolian vibration is calculated based on the principle of energy balance, and the correction coefficient of amplitude is proposed under considering the non-uniformity coefficient of wind turbulence, environmental conditions and other factors; then the balance equation of aeolian vibration on transmission line is established, and the nonlinear motion balance equation is derived based on the D'Alembert's principle. Finally, the above two methods are compared and discussed. The result indicates that: The calculation result calculated by the traditional energy balance method is more conservative due to it amplifies the input of wind energy. The correction coefficient of amplitude is provided under considering influences included the turbulence of wind field, environmental conditions, wind speed and wind direction; The calculation result calculated by the improved energy balance method is more reasonable, which is close to the result of dynamics analytical method.