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该文研究了智能半主动摩擦阻尼器对输电塔线体系风振反应的控制问题。该文提出了一种适用于输电塔结构风振控制的半主动摩擦阻尼器力学模型,建立了输电导线动力分析的多自由度模型,并建立了塔线耦联体系的受控动力分析模型和动力分析方法。基于半主动摩擦阻尼器的特点,提出了抑制结构风振反应的两种半主动控制策略。通过数值研究考察了半主动摩擦阻尼器对输电塔线体系风致振动响应的控制效果,并进行了相应的参数研究。研究表明,半主动摩擦阻尼器形式简单、具有较好耗能能力,可以有效地抑制输电塔的风致振动。
In this paper, the control of wind induced vibration response of transmission line system by intelligent semi-active friction damper is studied. In this paper, a mechanical model of semi-active friction damper suitable for wind-induced vibration control of power transmission tower is proposed, and a multi-degree-of-freedom model for dynamic analysis of transmission lines is established. A controlled dynamic analysis model of tower- Dynamic analysis method. Based on the characteristics of semi-active friction damper, two semi-active control strategies are proposed to suppress the wind-induced vibration response of the structure. The control effect of semi-active friction damper on the wind-induced vibration response of transmission line system was investigated by numerical investigation and the corresponding parameter studies were carried out. The research shows that the semi-active friction damper has a simple form and good energy dissipation capability, which can effectively suppress the wind-induced vibration of the transmission tower.