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首页> 外文期刊>Shock and vibration >Performance Evaluation on Transmission Tower-Line System with Passive Friction Dampers Subjected to Wind Excitations
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Performance Evaluation on Transmission Tower-Line System with Passive Friction Dampers Subjected to Wind Excitations

机译：受风激励的带有被动摩擦阻尼器的输电塔线系统的性能评估

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摘要

The vibration control and performance evaluation on a transmission-tower line system by using friction dampers subjected to wind excitations are carried out in this study. The three-dimensional finite element (FE) model of a transmission tower is firstly constructed. A two-dimensional lumped mass model of a transmission tower is developed for dynamic analysis. The analytical model of transmission tower-line system is proposed by taking the dynamic interaction between the tower and the transmission lines into consideration. The mechanical model of passive friction damper is presented by involving the effects of damper axial stiffness. The equation of motion of the transmission tower-line system incorporated with the friction dampers disturbed by wind excitations is established. A real transmission tower-line system is taken as an example to examine the feasibility and reliability of the proposed control approach. An extensive parameter study is carried out to find the optimal parameters of friction damper and to assess the effects of slipping force axial stiffness and hysteresis loop on control performance. The work on an example structure indicates that the application of friction dampers with optimal parameters could significantly reduce wind-induced responses of the transmission tower-line system.
机译：在这项研究中，通过使用受风激励的摩擦阻尼器，对输电塔线路系统进行了振动控制和性能评估。首先建立了输电塔的三维有限元模型。建立了输电塔的二维集总质量模型进行动态分析。考虑塔与输电线路之间的动态相互作用，提出了输电塔线系统的分析模型。通过考虑阻尼器轴向刚度的影响，提出了被动摩擦阻尼器的力学模型。建立了输电塔线系统与受风激励干扰的摩擦阻尼器的运动方程。以一个实际的输电塔线系统为例，研究了该控制方法的可行性和可靠性。进行了广泛的参数研究，以找到摩擦阻尼器的最佳参数，并评估了滑动力的轴向刚度和磁滞回线对控制性能的影响。在示例结构上的工作表明，具有最佳参数的摩擦阻尼器的应用可以显着降低输电塔线系统的风致响应。

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  • 来源
    《Shock and vibration》 |2015年第2期|310458.1-310458.13|共13页
  • 作者

    Chen Bo; Xiao Xiang; Li Peng-yun; Zhong Wan-li;

  • 作者单位

    Wuhan Univ Technol, Key Lab Roadway Bridge & Struct Engn, Wuhan 430070, Peoples R China.;

    Wuhan Univ Technol, Sch Transportat, Wuhan 430070, Peoples R China.;

    Guangdong Power Grid Corp Co Ltd, Guangzhou 510080, Guangdong, Peoples R China.;

    Guangdong Power Grid Corp Co Ltd, Guangzhou 510080, Guangdong, Peoples R China.;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
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