Design and Experimental Study of a New Anti‐vibration Hammer

Abstract A long time of wind vibration will cause fatigue damage to transmission lines. In order to reduce the wind vibration strength of the transmission line, it is unusually necessary to install anti‐vibration devices such as anti‐vibration hammers and damping on the transmission line. One of the most important and effective ways is the anti‐vibration hammer, which plays a significant role in damping vibration and is widely used in the field of wind vibration control of transmission lines. To solve the problems of fatigue damage and the poor performance of the vibration reduction at low frequencies, an anti‐vibration hammer with a hinge structure is designed in this paper. The vibration of the wire is transmitted to the anti‐vibration hammer through the hinge structure, and the effect of transverse displacement of the anti‐vibration hammer is amplified, which can absorb more energy. The vibration‐damping performance of the transmission line experimental setup was carried out in the lab environment. The results demonstrate that the amplitude response of the transmission line is significantly reduced after the installation of the anti‐vibration hammer, and the vibration damping effect of the designed anti‐vibration hammer with hinged structure is better than that of the traditional FD3 anti‐vibration hammer in the low‐frequency range of 19∼30 Hz.