Analysis of Wind Vibration Response of Transmission Tower
Angular tension-resistant transmission tower is taken as research object in this paper.The Davenport pulsating-wind speed spectrum was used to simulate wind speed time series and the wind power spectrum at different height nodes of transmission tower in MATLAB with the help of the linear filtering method(AR).The reliability of the fluctuating wind speed time series simulation was confirmed by comparing the wind power spectrum with Davenport power spectrum.Refined finite element model of the tower was established by APDL in ANSYS.The wind-load was calculated by the simulation of wind speed time series,and the wind-load time-history curve was generated at the same time.Finally,the dynamic characteristics and the wind-induced dynamic response of transmission tower in hurricane ware studied.The results show that the top of the tower was prone to large deformation and acceleration under strong wind excitation.In other words,there was a significant whipping effect.The research results will prove a useful reference for designing transmission tower and safeguarding the operation of transmission lines.
Transmission tower Pulsating wind simulation Dynamic characteristics Wind-induced dynamic response
Zhuli Liu Beibei Liu Zhuan You Mengli Li
School of Mechanical Engineering,Zhengzhou University,Zhengzhou 450001,China Henan EPRI Gaoke Group Co.Ltd.,Zhengzhou 450052,China
国际会议
浙江湖州
英文
466-476
2019-08-12（万方平台首次上网日期，不代表论文的发表时间）