Analysis of Mode and Dynamic Stability for Wind Turbine Rotating Blades-Reference-Cited by-同舟云学术

Analysis of Mode and Dynamic Stability for Wind Turbine Rotating Blades

Published:2018-05-02 Issue:5 Volume:140 Page:
ISSN:0892-7219
Container-title:Journal of Offshore Mechanics and Arctic Engineering
language:en
Short-container-title:

Author:

Zhang Jian-Ping¹²,Gong Zhen³,Guo Liang³,Wu Helen⁴

Affiliation:

1. College of Energy and Mechanical Engineering, Shanghai University of Electric Power, Shanghai 200090, China;

2. Shanghai Key Laboratory of Materials Protection and Advanced Materials in Electric Power, Shanghai 200090, China e-mail:

3. College of Energy and Mechanical Engineering, Shanghai University of Electric Power, Shanghai 200090, China e-mail:

4. School of Computing, Engineering and Mathematics, Western Sydney University, Sydney 2751, Australia e-mail:

Abstract

For large-scale offshore wind turbine rotating blades (NREL 5MW), the theoretical model of vibration due to fluid-structure interaction (FSI) is established, and the basic equations for modal analysis are given. Based on ANSYS workbench platform, the blade modal characteristics at different rotating speeds are analyzed, and further research on dynamic stability is carried out. The results indicate that the FSI and the blade rotation have a great influence on modal frequencies, which increase with the rotating speed of the blade under FSI. When the frequency of the periodic wind speed is close to the first-order natural frequency of the blade, both the maximum flapping displacement and the maximum von Mises stress increase with time, and the vibration divergence appears. At the safe tower clearance of 4.50 m, the critical value of the blade maximum von Mises stress shows a linear upward trend with the increase of the elasticity modulus, which provides technical references for optimization design and safe operation of wind turbine blades.

Funder

National Natural Science Foundation of China

Science and Technology Commission of Shanghai Municipality

Publisher

ASME International

Subject

Mechanical Engineering,Ocean Engineering

Link

http://asmedigitalcollection.asme.org/offshoremechanics/article-pdf/doi/10.1115/1.4039717/6249340/omae_140_05_051902.pdf

Reference17 articles.

1. Non-Linear Dynamics of Wind Turbine Wings;Int. J. Non-Linear Mech.,2006

2. Nonlinear Parametric Instability of Wind Turbine Wings;J. Sound Vib.,2007