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MOSYTRAF-Monitoringsystem zur Tragverhaltensstudie von Freileitungsseilen unter Böenbeanspruchung
(2014)
Overhead transmission line cables under wind gust loading - measurements and numerical simulations
(2014)
Investigation on the dynamic behavior of an OHL conductor bundle with light and heavy ice accretion
(2016)
Under a variety of possible cable vibrations which overhead line conductors can suffer, galloping identifies by large amplitudes at rather low frequencies. Changes of the cross-section as by ice-accretion provide the basis for such vibrations through an aerodynamic instability of drag and lift responses under wind excitation. Two different types of light and heavy ice bodies attached to a quad bundle conductor are analysed in wind tunnel tests. The results of aerodynamic drag and lift coefficients are investigated by means of a finite element model under turbulent wind excitation. It was found that instability can be well simulated for the heavy ice accretion but not for the case of lightly iced conductors.