1000 kV特高压大跨越输电塔调谐质量阻尼器减振效果分析  

Vibration reduction effect of tuned mass damper for 1000 kV UHV long-span transmission tower

作　　者：陈政清[1] 王茁 牛华伟[1] 张宏杰 Chen Zhengqing;Wang Zhuo;Niu Huawei;Zhang Hongjie(Wind Engineering Research Center, Hunan University, Changsha 410082, China;China Electric Power Research Institute, Beijing 100192, China)

机构地区：[1]湖南大学风工程试验研究中心,湖南长沙410082 [2]中国电力科学研究院有限公司,北京100192

出　　处：《武汉科技大学学报》2021年第3期233-240,共8页Journal of Wuhan University of Science and Technology

基　　金：国家自然科学基金资助项目(51478181).

摘　　要：本文结合有限元模拟和风洞试验方法,研究了大跨越输电塔这一类高耸结构在有、无调谐质量阻尼器(TMD)时的风振响应。结果表明,当阻尼器占主结构质量比为2%时,对结构在横线和顺线方向的第一阶弯曲振动控制较好,放置TMD可增大结构的阻尼比,提高输电塔振动响应中的加速度均方根及位移均方根减振率,有利于输电塔结构整体的振动控制。In this paper,the wind-induced vibration response of high rising structure such as long-span transmission tower with or without the tuned mass damper was studied by numerical calculation and wind tunnel test.The results show that the first order bending vibrations of the structure in the transversal and longitudinal directions are well controlled when the mass ratio of the damper to the main structure is 2%.The damping ratio of the structure,the root-mean-square damping rates of acceleration and displacement in vibration response of transmission tower can be improved by installing TMD,which is beneficial to the overall vibration control of the transmission tower structure.

关 键 词：大跨越输电塔 调谐质量阻尼器 有限元模拟 风洞试验 风振响应 振动控制 减振效果 

分 类 号：TU393.2[建筑科学—结构工程]