| 覆冰导线群的动态气动力特性 |
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| 引用本文： | 李万平.覆冰导线群的动态气动力特性[J].空气动力学学报,2000,18(4):413-420. |
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| 作者姓名： | 李万平 |
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| 作者单位： | 华中科技大学,武汉,430074 |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 针对我国电力线路严重驰振区的实际情况进行了覆冰导线群的动态气动力特性测试。试验模拟驰振发生时的扭转振荡，比较两种典型的覆冰导线模型的静态和动态的气动力特性。讨论了准静态假设在覆冰导线群的驰振分析中的适用性。覆冰导线模型的静态气动力特性测试可以给出动态气动力的主要特征。但是在覆冰导线的驰振分析中确定驰振发生的最低风速等条件时，需要考虑动态气动力负阻尼与静态试验结果的差别。
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| 关 键 词： | 驰振 覆冰导线群 动态气动力特性 电力线路 |
Dynamic Aerodynamic Characteristics of the Galloping of Bundled Iced Power Transmission Lines |
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| LI Wan-ping.Dynamic Aerodynamic Characteristics of the Galloping of Bundled Iced Power Transmission Lines[J].Acta Aerodynamica Sinica,2000,18(4):413-420. |
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| Authors: | LI Wan-ping |
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| Abstract: | The systematic tests have been carried out on the aerodynamic characteristics of galloping of bundled iced electric power transmission lines. Comparing the static and the dynamic aerodynamic characteristics of two kind of typical models of iced conductors the adaption of the quasi static hypothesis was estimated. The features of aerodynamics of the iced bundled conductors can be obtained by statictests. But the threshold, such as onset wind velocity for galloping would be modified in the dynamic cases. |
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| Keywords: | galloping iced conductor dynamic aerodynamic characteristics |
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