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Comparative Analysis of Dynamic Characteristics under Two Iced Conductor Galloping Models

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Abstract:

Considering strongly nonlinear characteristic of iced conductor rotating around its center of mass in the wind-deviation plane, two dynamic equations are constructed by using Den. Hartog criterion and O. Nigol criterion, and galloping characteristics between them are studied, which can provide references for constructing correct iced conductor galloping models. By comparative analysis of two models, the vibration frequency of O. Nigol model is slightly higher than that of Den. Hartog model, and the amplitude of O. Nigol model is smaller. Then the stability of iced conductor galloping and the effects of parameters on galloping amplitude are discussed, from which can conclude that the trends of two models varying with parameters are basically identical. But for numerical, O. Nigol model is more accurate.

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Periodical:

Applied Mechanics and Materials (Volumes 94-96)

Pages:

1685-1689

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.94-96.1685

Citation:

Cite this paper

Online since:

September 2011

Authors:

Xi Jun Liu, Xiao Qin Sun, Su Xia Zhang, Peng Liu, Bing Liu

Keywords:

Critical Wind Velocity, Iced Conductor Galloping, Transmission Line, Vibration Frequency

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© 2011 Trans Tech Publications Ltd. All Rights Reserved

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References

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