Testing in-phase Analysis for Adjacent Transmission Towers under Ambient Vibration
Based on the random vibration and system identification theory, the ambient vibration testing of two adjacent transmission towers were carried out, dynamic characteristics of the towers were obtained from ambient vibration data. The result shown that the suspended cables not only have mass effects, but have coupled stiffness effects applied to tower on transverse direction and longitudinal direction. At the same, testing value shows that the two adjacent towers have basically the same dynamic characteristics and damping ratio of the two transmission towers less than 0.01. Owing to the influence of conductors, frequency of the insulators is different to the towers at the two directions. It is disadvantage for wind-induced response of transmission line system under ambient loads.
Ambient vibration testing Coupled effects Model identification Testing in-phase
Xiang Mei Yan
Zhengzhou Institute of Aeronautical Industry Management, Zhengzhou, China
国际会议
上海
英文
112-116
2011-10-21（万方平台首次上网日期，不代表论文的发表时间）