Abstract
The weakly nonlinear, freely vibrating motion of a system of coupled spans of suspended overhead transmission lines is studied. It is shown that the natural vibration is the gravity mode, of which the tension component vanishes in the first harmonic. The problem originates from a study of the phenomenon of galloping, which is a high-amplitude periodic oscillation of overhead transmission lines due to steady crosswind. Particular attention is given to an intermodal resonance, which may be interesting for galloping control.
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Rienstra, S.W. Nonlinear free vibrations of coupled spans of overhead transmission lines. J Eng Math 53, 337–348 (2005). https://doi.org/10.1007/s10665-005-9011-4
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DOI: https://doi.org/10.1007/s10665-005-9011-4