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Author:

He, Hao-Xiang (He, Hao-Xiang.) (Scholars:何浩祥) | Ge, Teng-Fei (Ge, Teng-Fei.) | Cong, Mao-Lin (Cong, Mao-Lin.)

Indexed by:

EI Scopus PKU CSCD

Abstract:

The installation and application of traditional vibration reduction dampers are inconvenient for high-rise structures due to their special shapes and limited interior spaces. The rotor of a gimbal gyroscope has two rotating degrees of freedom, and the gyroscope produceds moments to resist two orthogonal displacements when its rotor rotates with high speed. Hence, the structural deformation of a high-rise building installed with a gimbal grroscope under external loads can be reduced. Here, a method for installing some gimbal gyroscopes on a high-rise structure to reduce its structural horizontal and torsional vibrations was presented. The movement mechanism of a gimbal gyroscope damper was formulated, and the dynamic equation for a multi-dimensional control system with gyroscope dampers was established. A steel TV tower with gyroscope dampers was analyzed to study its vibration control performance under fluctuating wind loadings and earthquake action. The results showed that the dynamic responses of a high-rise structure can be reduced effectively using ginbal gyroscope dampers with appropriate parameters.

Keyword:

Vibration analysis Degrees of freedom (mechanics) Tall buildings Vibration control Earthquakes Structural dynamics Gyroscopes

Author Community:

  • [ 1 ] [He, Hao-Xiang]Beijing Laboratory of Earthquake Engineering and Structural Retrofit, Beijing University of Technology, Beijing 100124, China
  • [ 2 ] [Ge, Teng-Fei]Beijing Laboratory of Earthquake Engineering and Structural Retrofit, Beijing University of Technology, Beijing 100124, China
  • [ 3 ] [Cong, Mao-Lin]Beijing Laboratory of Earthquake Engineering and Structural Retrofit, Beijing University of Technology, Beijing 100124, China

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Source :

Journal of Vibration and Shock

ISSN: 1000-3835

Year: 2012

Issue: 24

Volume: 31

Page: 26-29,59

Cited Count:

WoS CC Cited Count: 36

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 10

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