Research of constraint damping structure modeling and flutter suppression for wind turbine blade

被引：0

作者：

Sun, Dagang ^{[1
]}

Zhao, Shuping ^{[1
]}

Meng, Jie ^{[1
]}

Song, Yong ^{[1
]}

Li, Zhanlong ^{[1
]}

机构：

[1] School of Mechanical Engineering, Taiyuan University of Science and Technology, Taiyuan,030024, China

来源：

Taiyangneng Xuebao/Acta Energiae Solaris Sinica | 2018年 / 39卷 / 04期

关键词：

Turbine components - Wind turbine blades - Flutter (aerodynamics) - Wind - Strain energy - Turbomachine blades;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

In order to overcome the flutter problem of large scale wind turbine blade,the constraint damping structure is applied to the blade for increasing structural damping. The dynamical model of local constraint damping blade is established based on energy method to derive the expression of structural loss factor. The laying position of constraint damping layer is determined based on the distribution of modal strain energy. Parametric analysis of the effects of damping layer and constrained layer thickness on modal loss factor is carried out. Then three-dimensional finite element model of certain type 1.5 MW wind turbine damping blade is established by using the mingle unit method. The dynamic responses of ordinary blade and damping blade under rated wind speed and limit wind speed are simulated numerically by the Newmark direct integration method. The results show that compared with ordinary blade,the standard deviations of displacement and acceleration of blades with constrained damping structure at both wind speeds in flapping and swinging direction of blade tip are reduced by more than 50%,which can significantly increase the flutter suppression ability of blade. The research results can provide reference for the flutter control of large scale wind turbine blade. © 2018, Editorial Board of Acta Energiae Solaris Sinica. All right reserved.

引用

页码：1165 / 1172