Effects of conductor eccentric icing on quad-bundle conductor galloping

被引：0
|
作者：
Wu C. [1 ,3 ]
Ye Z. [1 ,2 ]
Yan B. [3 ]
Yang X. [1 ,2 ]
Zhang B. [1 ,2 ]
Lü Z. [1 ,2 ]
机构：
[1] State Grid Henan Provincial Electric Power Research Institute, Zhengzhou
[2] State Grid Key Lab of Power Transmission Line Galloping Prevention and Control Technology, Zhengzhou
[3] College of Aerospace Engineering, Chongqing University, Chongqing
来源：
Zhendong yu Chongji/Journal of Vibration and Shock | 2020年 / 39卷 / 01期
关键词：
Eccentric icing; Galloping; Numerical simulation; Quad-bundle conductor;
D O I：
10.13465/j.cnki.jvs.2020.01.005
中图分类号：
学科分类号：
摘要：
The variation laws of lift, drag and torque coefficients of a quad-bundle conductor with typical crescent icing were obtained with wind tunnel tests. A numerical simulation method for iced conductor galloping considering effects of eccentric icing was proposed based on the FE software ABAQUS, and the correctness of the method was verified with examples. The user self-defined subroutine UEL in ABAQUS was used to program an aerodynamic load element, and realize the numerical simulation method for iced conductor galloping considering effects of eccentric icing. The proposed method and the traditional numerical simulation one were used to contrastively analyze galloping characteristics of a quad-bundle conductor with typical crescent icing. The results showed that the proposed method can be used to accurately describe the torsional feature of the iced conductor motion; after considering effects of eccentric icing, displacement and torsional angle amplitudes of the iced quad-bundle conductor obviously increase and its vibration mode is more complex; it is necessary to consider effects of eccentric icing when studying galloping of iced conductor. © 2020, Editorial Office of Journal of Vibration and Shock. All right reserved.
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页码：29 / 36
页数：7
相关论文
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