江阴500kV拉线式输电塔脉动实测  

Site Vibration Experiment of Jiang Yin 500kV Guyed Transmission Tower

作　　者：何敏娟[1] 杨必峰[1] 

机构地区：[1]同济大学,上海200092

出　　处：《结构工程师》2003年第4期74-79,共6页Structural Engineers

摘　　要：采用环境随机激振方法对江阴 5 0 0kV拉线式塔进行了实测。介绍了实验背景 ,实验过程 ,及模态识别的方法 ,得到了拉线塔横向、纵向及扭转向的一阶频率、振型和阻尼比。Taking JiangYin 500kV guyed transmission tower as the case study, on-site dynamic vibration measurement is analysed, which was excited by the random environment micro-quiver. Also, the process of the experiment and the method of mode identification are discussed in details. In the end, dynamic parameters of the guyed tower are presented, including frequencies, flutter states, and damping ratios.

关 键 词：拉线式输电塔 模态识别 阻尼比 环境随机激振方法 

分 类 号：TM753[电气工程—电力系统及自动化]