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A novel add-on device, called a hybrid nutation damper (HND), is proposed to control galloping on both single and bundled conductors of overhead power lines. An HND employs a nutation damper (also called a tuned liquid damper) as an energy dissipator, and a tuned mass damper as the mechanism to transfer a conductor's plunge motion into a nutation damper's rotational motion. An HND is in principle...
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