Experiment Study on Nonlinear Impedance of Vibration Damper and Parameter Identification

PDF(1337 KB)

Journal of Vibration and Shock ›› 2013, Vol. 32 ›› Issue (11) : 182-185.

论文

Experiment Study on Nonlinear Impedance of Vibration Damper and Parameter Identification

Luo Xiaoyu 1, Zhang Yisheng 1, Xie Shuhong 2, Li Xinchu 2, Xu Zhilei 2, Liu Lijun 2

Author information +

History +

Abstract

Vibration damper is widely used in overhead transmission lines to alleviate aeoline vibration. Impedance is important evaluation criteria. Aiming at studying its nonlinear characteristics, an impedance measurement method using sine frequency sweep was developed. By measuring impedance spectrum for vibration damper under different excitation velocity, mode frequencies and impedance for different velocity were identified, as well damping ratio for each mode frequency was calculated. Relationship between velocity and the vibration parameter was analyzed. At last, limitation of the existing linear mechanical model of the vibration damper was pointed out, by comparing the results of experiment and calculation.

Key words

vibration damper / aeroline vibration / nonlinear / mode frequency / impedance

Cite this article

EndNote

Ris (Procite)

Bibtex

Download Citations

Luo Xiaoyu;Zhang Yisheng;Xie Shuhong;Li Xinchu;Xu Zhilei;Liu Lijun . Experiment Study on Nonlinear Impedance of Vibration Damper and Parameter Identification[J]. Journal of Vibration and Shock, 2013, 32(11): 182-185