Abstract
Vibration model can reflect conductors nonlinear vibration under wind excitation .The paper improves and expounds the detailed derivation process based on the previous studies, and studies the movement type of conductors. Comparing with the vertical displacement change of conductors in different conditions to prove that the model derived is reasonable. The paper analyses conductors nonlinear vibration in the case of external condition change to study the movement change of conductors. Lyapunov stability theory and Routh-Hurwitz criterion are used to obtain critical wind velocity of conductors, namely the conditions for conductor galloping. The results shows model derived can reflect conductors nonlinear vibration under wind excitation.
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