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Control of Wind-Induced Vibration of Transmission Tower-Line System by Using a Spring Pendulum

机译：弹簧摆控制输电塔线系统的风振

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摘要

The high-voltage power transmission tower-line system, which is a high flexible structure, is very susceptible to the wind-induced vibrations. This paper proposes the utilization of the internal resonance feature of the spring pendulum to reduce the wind-induced vibration of a transmission tower. The kinetic expression of the spring pendulum system is obtained through Lagrangian equation. The condition of the internal resonance is verified to be lambda = 2, in which lambda is the ratio of the spring mode frequency over the pendulum mode frequency. A 55 m tower in the Liaoning province is established in SAP2000 to numerically verify the effectiveness of the proposed device. The spring pendulum is modeled using Link element. The wind speed history is generated based on Kaimal spectrum using harmonic superposition method. Results show that, (1) compared with the suspended mass pendulum, the spring pendulum absorbs more energy and reduces the oscillation more effectively and (2) the vibration control performance of the proposed spring pendulum improves as the external wind load increases.
机译：高柔性结构的高压输电铁塔线路系统非常容易受到风振的影响。本文提出了利用弹簧摆的内部共振特征来减少输电塔的风致振动。弹簧摆系统的动力学表达式通过拉格朗日方程获得。验证内部谐振的条件为lambda = 2，其中lambda是弹簧模式频率与摆模式频率的比率。 SAP2000中在辽宁省建立了一个55 m的塔，以数字方式验证了该设备的有效性。使用Link元素对弹簧摆进行建模。使用谐波叠加法基于Kaimal谱生成风速历史记录。结果表明，（1）与悬摆相比，弹簧摆能吸收更多的能量并更有效地减少振动；（2）所提出的弹簧摆的振动控制性能随着外部风荷载的增加而提高。

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  • 来源
    《Mathematical Problems in Engineering》 |2015年第4期|671632.1-671632.10|共10页
  • 作者

    Zhang Peng; Ren Liang; Li Hongnan; Jia Ziguang; Jiang Tao;

  • 作者单位

    Dalian Univ Technol, Fac Infrastruct Engn, Dalian 116024, Liaoning, Peoples R China.;

    Dalian Univ Technol, Fac Infrastruct Engn, Dalian 116024, Liaoning, Peoples R China.;

    Dalian Univ Technol, Fac Infrastruct Engn, Dalian 116024, Liaoning, Peoples R China.;

    Dalian Univ Technol, Fac Infrastruct Engn, Dalian 116024, Liaoning, Peoples R China.;

    Dalian Univ Technol, Fac Infrastruct Engn, Dalian 116024, Liaoning, Peoples R China.;

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