In view of the actual needs of the current stage of galloping prevention and control, as well as the shortcomings of the traditional anti-galloping device, this paper proposed a design scheme for the non-linear-stiffness anti-galloping de-vice based on nonlinear energy sink technology and damping particles, and processed several sets of prototypes used to carry out experimental research. First, a vibration platform with 140 m conductor in the lab was employed to verify the damping and anti-vibration effect of the non-linear-stiffness anti-galloping device based on the forced vibration test method; and then, the real test line was employed in the field to perform long-term tracking and monitoring analysis and to verify the actual anti-galloping effect of the device. The test conclusion shows that, in the common galloping frequency range of 0.1～2 Hz, the non-linear-stiffness anti-galloping device has a significant effect in increasing the damping, sup-pressing the amplitude, which can effectively improve the ability of anti-galloping as well as suppressing of the overhead conductors. Therefore, the purposes of protecting the transmission lines and fittings and prolonging their service life can easily be achieved.
关键词
输电线路/覆冰舞动/舞动防治/防舞装置/非线性能量槽
Key words
transmission line/icing-caused galloping/anti-galloping/anti-galloping device/nonlinear energy sink
维普
万方数据