Vibration attenuation performance of wind turbine tower using a prestressed tuned mass damper under seismic excitation  

作　　者：Lei Zhenbo Liu Gang Wang Hui Hui Yi 

机构地区：[1]School of Civil Engineering,Chongqing University,Chongqing 400045,China [2]Key Laboratory of New Technology for Construction of Cities in Mountain Area,Chongqing University,Ministry of Education,Chongqing 400045,China

出　　处：《Earthquake Engineering and Engineering Vibration》2024年第2期511-524,共14页地震工程与工程振动（英文刊）

基　　金：Fundamental Research Funds for the National Natural Science Foundation of China under Grant No.52078084;the Natural Science Foundation of Chongqing (cstc2021jcyj-msxmX0623);the 111 project of the Ministry of Education;the Bureau of Foreign Experts of China under Grant No.B18062;China Postdoctoral Science Foundation under Grant No.2021M690838。

摘　　要：With the rapid development of large megawatt wind turbines,the operation environment of wind turbine towers(WTTs)has become increasingly complex.In particular,seismic excitation can create a resonance response and cause excessive vibration of the WTT.To investigate the vibration attenuation performance of the WTT under seismic excitations,a novel passive vibration control device,called a prestressed tuned mass damper(PS-TMD),is presented in this study.First,a mathematical model is established based on structural dynamics under seismic excitation.Then,the mathematical analytical expression of the dynamic coefficient is deduced,and the parameter design method is obtained by system tuning optimization.Next,based on a theoretical analysis and parameter design,the numerical results showed that the PS-TMD was able to effectively mitigate the resonance under the harmonic basal acceleration.Finally,the time-history analysis method is used to verify the effectiveness of the traditional pendulum tuned mass damper(PTMD)and the novel PS-TMD device,and the results indicate that the vibration attenuation performance of the PS-TMD is better than the PTMD.In addition,the PS-TMD avoids the nonlinear effect due to the large oscillation angle,and has the potential to dissipate hysteretic energy under seismic excitation.

关 键 词：wind turbine tower prestressed tuned mass damper vibration control seismic excitation numerical simulation 

分 类 号：TU311.3[建筑科学—结构工程]