摘要
为控制输电导线的风致振动,提出了一种同时实现输电导线平面内、外振动控制的双向TMD,采用多质点模型建立了输电导线在TMD控制下的动力分析方程,并以220kV吉林—通辽输电线路400m档距输电导线为例,设计出TMD的参数,通过SAP2000对安装与未安装双向TMD系统的输电导线施加实际风荷载进行空间非线性时程响应分析。结果表明,该双向TMD对输电导线的风振响应控制效果较好。
In order to control the wind-induced vibration of transmission lines, a two-dimensional TMD is proposed to realize the in-plane and out-plane vibration control of the transmission lines. The multi-degree of freedom model is adopted to establish dynamic analysis equation of transmission lines. Taking the 220 kV Jilin-Tongliao transmission lines of 400 m span for an example, the TMD parameters are designed. Under the conditions of actual wind loads, spatial nonlinear time-his- tory response analysis is implemented for the transmission line installed two-dimensional TMD or not by using SAP2000. The results show that the designed TMD is effective for controlling wind-induced vibration response of the transmission line.
出处
《水电能源科学》
北大核心
2012年第1期195-198,214,共5页
Water Resources and Power
关键词
输电导线
风振控制
双向TMD
动力方程
非线性时程分析
transmission lines
wind-induced vibration control
two-dimensional TMD
dynamic equation
nonlineartime-history analysis
