Theoretical calculation model and tests for FDZ-type dampers

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Journal of Vibration and Shock ›› 2018, Vol. 37 ›› Issue (17) : 196-203.

LI Li,ZHANG Zuyan,XU Ningbo,YI Yongzhi

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Abstract

According to vibration characteristics of FDZ-type dampers’hammer,based on the theoretical calculation model of FR-type dampers,considering 6-DOF of the hammer in six directions,the theoretical calculation model of FDZ-type dampers was established. This theoretical model was suitable for all kinds of Stockbridge-type dampers. Through FDZ-type dampers’vibration-exciting tests,the power characteristic curve obtained using the theoretical model was compared with that acquired in the vibration tests. It was found that power peak,peak frequency,trend of curve and position of peaks and troughs of both curves agree well with each other,and the correctness of the theoretical model is verified; the model can be used to calculate breeze-induced vibration responses of transmission lines,and it provides a theoretical basis for anti-vibration design of transmission lines.

Key words

FDZ-type damper / theoretical calculation model / vibration test / power characteristic curve / peak frequency

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LI Li,ZHANG Zuyan,XU Ningbo,YI Yongzhi. Theoretical calculation model and tests for FDZ-type dampers[J]. Journal of Vibration and Shock, 2018, 37(17): 196-203

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