Modeling of a mass absorber to suppress wind-induced vibrations of transmission line conductors

This paper presents and discusses the investigation of an asymmetric Stockbridge damper that is used to suppress wind-induced vibrations on slender structures such as overhead transmission power lines. The transmission lines vibrate because of wind motion and this causes fatigue failure to transmission lines usually at the suspension clamp where the maximum stress occurs. Experiments were conducted on asymmetric Stockbridge dampers according to the Institute of Electrical and Electronics Engineers (IEEE) 664 standards, the results revealed that asymmetric Stockbridge damper produces four resonance frequencies. The results further revealed that the modified asymmetric Stockbridge damper is capable of producing more than four resonance frequencies.