采用万向支架陀螺仪的高耸结构减振控制研究

何浩祥;葛腾飞;丛茂林

振动与冲击 ›› 2012, Vol. 31 ›› Issue (24) : 26-29.

PDF(1770 KB)
PDF(1770 KB)
振动与冲击 ›› 2012, Vol. 31 ›› Issue (24) : 26-29.
论文

采用万向支架陀螺仪的高耸结构减振控制研究

  • 何浩祥,葛腾飞,丛茂林
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Dynamic control of high-rise structures using gimbal gyroscope

  • HE Hao-xiang, GE Teng-fei, CONG Mao-lin
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摘要

鉴于高耸结构的特殊形式和内部有限空间,传统的减振装置的安装和使用受到限制。万向支架陀螺仪的转子具有两个转动自由度,高速旋转时可产生具有抵抗水平正交两向位移的力矩,从而能约束或降低结构在外部动力作用下的变形。因此,本文提出在高耸结构上安装万向支架陀螺仪实现对结构水平及扭转振动控制的方法。阐述万向支架陀螺阻尼器的运动机理,建立安有陀螺阻尼器的结构多维减振体系控制运动方程。以一装有多个陀螺阻尼器的电视塔为算例,对结构在脉动风荷载和地震作用下的减振性能进行研究。结果表明,具有合理参数的万向支架陀螺阻尼器能有效降低结构在水平两向及扭转方向的振动。

Abstract

The installation and application of traditional vibration reduction damper is inconvenient for high-rise structure for the structural special shape and limited interior space. The rotor of gimbal gyroscope has two rotational degrees of freedom, and the gyroscope produce moment to resist two orthogonal displacements when the rotor rotates with high speed. Hence, the structure deformation under external force can be reduced. Therefore, a method for installing some gimbal gyroscopes on the high-rise structure to reduce the structural horizontal and torsional vibration is presented. The movement mechanism of the gimbal gyroscope is formulated, and the dynamic equation for the multi-dimensional control system with gyroscope dampers is established. A steel TV tower with gyroscope dampers is analyzed to verify the control performance under fluctuating wind loadings and earthquake action. The results show that the dynamic response of high-rise structure can be reduced effectively by the gyroscope dampers with appropriate parameters.

关键词

陀螺仪 / 高耸结构 / 风振 / 地震作用 / 结构控制

Key words

gyroscope / high-rise structure / wind vibration / earthquake action / structural control

引用本文

导出引用
何浩祥;葛腾飞;丛茂林. 采用万向支架陀螺仪的高耸结构减振控制研究[J]. 振动与冲击, 2012, 31(24): 26-29
HE Hao-xiang; GE Teng-fei; CONG Mao-lin. Dynamic control of high-rise structures using gimbal gyroscope[J]. Journal of Vibration and Shock, 2012, 31(24): 26-29

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