浔江大跨越输电线微风振动消振设计试验研究及现场测量

Experiments and field measurements of damper desgned for breeze vibration of a transmission line across Xunjiang river

从理论上初步探讨了阻尼线(或防振锤)与输电线振动的耦合特性。结果证明:在阻尼线与输电线固有频率相同,且阻尼线与输电线参振质量比值大的条件下,输电线、阻尼线、防振锤均处于最小和最稳定的振动状态,使输电线得到了保护。如果阻尼线与防振锤联合使用,对输电线的消振,理论和实践证明是令人满意的。

The paper studies primarily the chanactericitics of the couple vibration of wire damper (or damping hammer) and transmission line. It is shown that when the natrual frequencies of wire damper and transmission line are the same and the vibration mass rate of the wire damper to the transmission line is large, the transmission line, the wire damper and the damping hammer are in the minimum vibration and steadiest state, then the transmission line is well protected. If wire damper combined with damping hammer is used for the vibration damper of the transmission line, the vibration reduction of the transmission line is proved to be effective theortically and practically .