| Analysis of the distorted scaling factor in wind tunnel modeling of power transmission line system |
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| 作者姓名： | WANG Zhi song SUN Bo LI Zheng liang and XIAO Zheng zhi |
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| 作者单位： | College of Civil Engineering, Chongqing University, Chongqing 400030, P. R. China;;China Power Engineering Consulting Group Corporation, Beijing 100011, P. R. China;College of Civil Engineering, Chongqing University, Chongqing 400030, P. R. China;;College of Civil Engineering, Chongqing University, Chongqing 400030, P. R. China; |
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| 摘 要： | Because of the limitation of the model making and the existing wind tunnel’s size, it is difficult to keep the line and tower in the same scaling factor in developing the aeroelastic model of the power transmission lines system, and a distorted scaling factor is needed in span length of the lines. With the instance of a 1 000 kV two circuit power transmission lines, the finite element analysis under the along wind load in time history is conducted with keeping the tower in the same and the line scaling factor being 1, 0.5 and 0.25 respectively. The results show that the response of the power transmission lines systems keep in the same, and then the wind induced vibration of the distorted model in the wind tunnel test can actually reflect the response of the power transmission lines system under the wind load.
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| 关 键 词： | power transmission tower line system wind tunnel testing distorted scaling factor response of wind induced vibration |
| 收稿时间： | 2009/6/30 0:00:00 |
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