基于多点卡曼谱输入的输电塔脉动风数值模拟  

Fluctuating wind numerical simulations for transmission tower based on Kaimal spectrum importation

作　　者：祝贺[1] 徐建源[2] 

机构地区：[1]东北电力大学建筑工程学院,吉林吉林132012 [2]沈阳工业大学电气工程学院,辽宁沈阳110032

出　　处：《华东电力》2008年第9期18-21,共4页East China Electric Power

基　　金：中国电机工程学会电力青年科技创新项目(2008-16);吉林省教育厅"十一五"重点科研项目(2007-51)

摘　　要：根据随机振动理论,确定利用卡曼谱模拟风速湍流,应用ANSYS实现了输电塔模型的建立及脉动风的数值模拟,得到各点的风速时程样本。通过对输电塔施加脉动风进行结构动力特性分析,得到塔架前24阶振动频率及各点位移时程曲线,迭代验算数值模拟结果符合结构振动规律,可为工程实际提供参考。According to the random vibration theory,the fluctuating wind model for the transmission tower was established by Kaimail spectrum simulated wind turbulence,and numerical simulations were conducted.Through dynamic analysis of fluctuating wind for the transmission tower,the 24 bands frequency of the tower and the displacement-time curve were obtained.Iterative checking proves that the numerical simulation results are in line with of structural vibration rules.

关 键 词：输电塔 卡曼谱 脉动风 ANSYS 

分 类 号：TM753[电气工程—电力系统及自动化]