基于ANSYS的输电塔动力性能研究

Dynamic characteristics study of transmission tower based on ANSYS

基于大型有限元分析软件ANSYS，以一实际工程中使用的220kV双回路转角塔为研究对象，根据其空间构造特点，建立其精确三维有限元模型。对其进行模态分析，并结合电力部门经验公式，验证所建模型的正确性。利用模态分析研究塔架结构的固有频率和振型等动力特性。研究成果为今后输电线路动力响应研究打下基础。

Based on the finite element analysis software ANSYS, taking a 220 kV transmission tower as a research background, according to the characteristics of space construction, the finite element model of the test tower was established. It was established for modal analysis and combined with the result with experience formula to verify the correctness of the model. The natural frequency and vibration of transmission tower were study by using modal analysis. Thia paper lays a good foundation for the later dynamic properties research.