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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)
Aerodynamic damping of nonlinear movement of conductor cables in laminar and turbulent wind flow
(2015)
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.