大召营高型变电构架的动力特性分析  

The dynamic performance analyses of the high power transformation truss in Dazhaoying

作　　者：张哲[1] 李天[1] 李光 张猛[3] 王柯[1] 

机构地区：[1]郑州大学土木工程学院,河南郑州450002 [2]河南省纺织设计院,河南郑州450052 [3]同济大学土木工程学院,上海200092

出　　处：《世界地震工程》2004年第3期141-145,共5页World Earthquake Engineering

摘　　要：河南省大召营变电站变电构架为高型构架,这种变电构架的结构形式复杂,规模较为庞大。本文采用ANSYS程序对其建立其有限元模型,并用子空间迭代法对结构进行了模态分析,得到了结构的自然频率和振型特征。通过对该变电站高型变电构架的动力特性分析,明确了结构的刚度特点和,找到了结构抗震的薄弱环节,计算结果对该结构的维修改造是有重要价值的。The transformation truss of Dazhaoying transformer substation which is located in Henan is a high power transformation truss.The configuration of the structure is complicity,and its scale is enormous.The software ANSYS is adopted to establish the finite element model of the structure and the subspace method is used to analyze the structural modal characteristics, then natural frequencies and mode shapes of the structure are obtained.By analyzing the dynamic property of the structure,the rigidity feature and the weak link are found.The results obtained are available for the maintenance and reconstruction of the structure in practice.

关 键 词：大召营变电站 变电构架 动力特性 ANSYS程序 有限元模型 

分 类 号：TM75[电气工程—电力系统及自动化] TU311.3[建筑科学—结构工程]