输电塔圆钢管的涡激振动理论分析与风洞试验验证  

Theoretical analysis and wind tunnel validation of vortex-induced vibration of circular steel tubes of power transmission towers

作　　者：刘光辉 张博 武鹏飞[2] 伍川 陈文礼[2] LIU Guanghui;ZHANG Bo;WU Pengfei;WU Chuan;CHEN Wenli(State Grid Henan Electric Power Research Institute,Henan Key Laboratory of Power Transmission Line Galloping Prevention and Control Technology,Zhengzhou 450052,China;Harbin Institute of Technology,Key Laboratory of Civil Engineering,Intelligent Disaster Prevention and Mitigation,Ministry of Industry and Information Technology,Harbin 150090,China)

机构地区：[1]河南省电力线路舞动防治技术重点实验室国网河南省电力公司电力科学研究院,河南郑州450052 [2]哈尔滨工业大学土木工程智能防灾减灾工业与信息化部重点实验室,黑龙江哈尔滨150090

出　　处：《自然灾害学报》2025年第2期149-159,共11页Journal of Natural Disasters

基　　金：国家电网河南电科院非物资项目(52170222000M)。

摘　　要：钢管塔力学性能卓越,在电网中应用广泛。其中钢管塔主要钢管构件长细比较大,低风速下易涡激振动,进而引起结构疲劳损伤,引起连接处损坏,严重影响结构的安全性与耐久性。针对目前钢管塔杆件涡振理论研究不充分现状,基于Van Der Pol式尾流振子模型进行结构计算,采用中心差分法解模型耦合方程,编制圆钢管涡激振动计算程序并设计风洞试验验证其准确性,旨在研究圆钢管的涡激振动特性,为钢管塔涡振预测及控制提供理论依据。试验与数值计算结果的比较表明,该文建立的尾流振子模型能够较好地拟合钢管的位移,由于理论模型采用理想铰接约束,试验测得的涡振锁定区较短,且锁定频率低于理论值。Steel tube towers exhibit excellent mechanical properties and are widely used in power grids.Among them,the main steel tube components of the tower have a relatively large aspect ratio,making them prone to vortex-induced vibrations at low wind speed.This can lead to structural fatigue damage,resulting in connection failures,significantly impacting the safety and durability of the structure.In response to the current inadequate research on vortex-induced vibrations in steel tube tower components,this paper employs the Van Der Pol wake oscillator model for structural calculations.The central difference method is used to solve the coupled equations of the model,and a circular steel tube vortex-induced vibration calculation program is developed.Wind tunnel experiments are conducted to validate its accuracy,aiming to investigate the vortex-induced vibration characteristics of circular steel tubes and provide a theoretical basis for predicting and controlling vortex-induced vibrations in steel tube towers.A comparison of experimental and numerical results indicates that the wake oscillator model established in this paper can effectively fit the displacement of steel tubes.Due to the ideal articulation constraints in the theoretical model,the vortex locking region measured in the experiment is short,and the locking frequency is lower than that of the theoretical value.

关 键 词：尾流振子模型 输电塔 钢管 涡激振动 风洞试验 

分 类 号：TU973.32[建筑科学—结构工程] TU279.744