Aeroelastic analysis of large horizontal wind turbine baldes

Applied Mathematics and Mechanics (English Edition) ›› 2016, Vol. 37 ›› Issue (S1): 97-104.

Aeroelastic analysis of large horizontal wind turbine baldes

Di TANG^1,2, Zhiliang LU¹, Tongqing GUO¹

1. College of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;
2. College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310014, China

收稿日期:2016-05-07 修回日期:2016-07-06 出版日期:2016-12-24 发布日期:2016-12-24
通讯作者: Zhiliang LU E-mail:luzl@nuaa.edu.cn
基金资助:
Project supported by the Major State Basic Research Development Program of China (973 Program) (No. 2014CB04200), the National Science Foundation of China (No. 11372135), and a project funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions

Aeroelastic analysis of large horizontal wind turbine baldes

Di TANG^1,2, Zhiliang LU¹, Tongqing GUO¹

1. College of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;
2. College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310014, China

Received:2016-05-07 Revised:2016-07-06 Online:2016-12-24 Published:2016-12-24
Contact: Zhiliang LU E-mail:luzl@nuaa.edu.cn
Supported by:
Project supported by the Major State Basic Research Development Program of China (973 Program) (No. 2014CB04200), the National Science Foundation of China (No. 11372135), and a project funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions

摘要/Abstract

摘要：

A nonlinear aeroelastic analysis method for large horizontal wind turbines is described. A vortex wake method and a nonlinear finite element method (FEM) are coupled in the approach. The vortex wake method is used to predict wind turbine aerodynamic loads of a wind turbine, and a three-dimensional (3D) shell model is built for the rotor. Average aerodynamic forces along the azimuth are applied to the structural model, and the nonlinear static aeroelastic behaviors are computed. The wind rotor modes are obtained at the static aeroelastic status by linearizing the coupled equations. The static aeroelastic performance and dynamic aeroelastic responses are calculated for the NH1500 wind turbine. The results show that structural geometrical nonlinearities significantly reduce displacements and vibration amplitudes of the wind turbine blades. Therefore, structural geometrical nonlinearities cannot be neglected both in the static aeroelastic analysis and dynamic aeroelastic analysis.

关键词: wind turbine, aeroelasticity, geometrical nonlinearity, prescribed wake

Abstract:

Key words: wind turbine, aeroelasticity, prescribed wake, geometrical nonlinearity

中图分类号:

O355

Di TANG, Zhiliang LU, Tongqing GUO. Aeroelastic analysis of large horizontal wind turbine baldes[J]. Applied Mathematics and Mechanics (English Edition), 2016, 37(S1): 97-104.

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Aeroelastic analysis of large horizontal wind turbine baldes

Aeroelastic analysis of large horizontal wind turbine baldes

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