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《重庆大学学报(英文版)》 2009-01
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Aeolian vibration control measures for ground wires of Han River long span transmission lines

YE Zhi-xiong 1,2LI Li 1,2,LONG Xiao-hong 1,2 1 School of Civil Engineering and Mechanics,HuaZhong University of Science and Technology,Wuhan 430074,P. R. China 2 Hubei Key Laboratory of Control Structure,HuaZhong University of Science and Technology,Wuhan 430074,P. R. China  
Long span ultra-high voltage(UHV) transmission lines have serious aeolian vibration problems. To control these vibrations,we improved the energy balance method in the following aspects:the wind power input,the conductor self-damping,and the damper dissipated power. Meanwhile,we built a theoretical mechanical model of β wire dampers and derived energy dissipation calculation formulae. This permits the vibration energy dissipated by β wire dampers can be considered in the energy balance method. Then,we developed a computer program based on the improved energy balance method using Matlab,and analyzed UHV long span ground wires of the Han River long span project in P. R. China. The results show that the combination of β wire dampers and Stockbridge dampers can reduce vibration of UHV long span transmission lines,which provides a reference for research and construction of UHV engineering projects.
【Fund】: Funded by the Natural Science Foundation of China (No. 50878093).
【CateGory Index】: TM752
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