Analysis on Galloping Responses of Transmission Tower-Line System

Yu Xian Di; Kuan Jun Zhu; Bin Liu; Long Liu; Cao Lan Liu

doi:10.4028/www.scientific.net/AMM.602-605.3025

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 602-605Analysis on Galloping Responses of Transmission...

Analysis on Galloping Responses of Transmission Tower-Line System

Abstract:

Nonlinear finite element model of a transmission tower-line system was set up and galloping of iced bundle conductors in the system was numerically simulated by means of ANSYS software. Based on galloping trajectories, vibration frequency, galloping order, conductor tension; unbalanced tension characteristics of iced conductors, it was shown that values of the conductor amplitudes by the tower-line system model are increased by 20% compared to the conductor model. The values of the strain tower unbalanced tensions by the tower-line system model are decreased by 20% and the values of the suspension tower unbalanced tensions by the tower-line system model are decreased by 62.5% compared to the conductor model conductor-insulator mode1. The galloping order is different for different span, due to the impact of the order of galloping. The amplitude of the vertical galloping is increasing while the increasing span, but it is not linear increase.

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Periodical:

Applied Mechanics and Materials (Volumes 602-605)

Pages:

3025-3028

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.602-605.3025

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Online since:

August 2014

Authors:

Yu Xian Di*, Kuan Jun Zhu, Bin Liu, Long Liu, Cao Lan Liu

Keywords:

Conductor Tension, Galloping, Numerical Simulation, Tower-Line System, Unbalanced Tension

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* - Corresponding Author

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