210 Non-Destructive Method of CFRP Wind Turbine Blade by using its Vibration Characteristics

2012 ◽  
Vol 2012.18 (0) ◽  
pp. 181-182
Author(s):  
Dan WU ◽  
Takahiro MIYAUCHI ◽  
Kazuhiro SAKATA ◽  
Goichi BEN ◽  
Yoshio SHINAGAWA
Keyword(s):  
Wind Turbine ◽  
Turbine Blade ◽  
Vibration Characteristics ◽  
Wind Turbine Blade ◽  
Non Destructive

scholarly journals Non-Destructive Evaluation of Damage Mechanisms in Composite Sandwich Structure

2008 ◽  
Vol 13-14 ◽  
pp. 105-114
Author(s):  
Amit Puri ◽  
Alexander D. Fergusson ◽  
I. Palmer ◽  
Andrew Morris ◽  
F. Jensen ◽  
...  
Keyword(s):  
Wind Turbine ◽  
Turbine Blade ◽  
Structural Integrity ◽  
Wind Turbine Blade ◽  
Image Correlation ◽  
Box Girder ◽  
Full Field ◽  
Composite Sandwich ◽  
Non Destructive ◽  
Dic Technique

This paper presents the experimental results obtained of flexurally loaded wind turbine blade cross section material. All material was extracted from a wind turbine blade box girder and testing was conducted in four point configuration. The aim was to gain an understanding of the structural integrity of this lightweight material as it deforms in flexure. To allow for thorough analysis, digital image correlation (DIC) was used to produce full field strain maps of the deforming specimens. Results highlight the capability of the DIC technique to identify regions of failure, as well as the aspects responsible for them. Overall, the results present a foundation for tests on larger substructure, and eventually integration into manufacturing and maintenance aspects of the industry.

scholarly journals The application of non-destructive techniques to the testing of a wind turbine blade

1994 ◽  
Author(s):  
H. Sutherland ◽  
A. Beattie ◽  
B. Hansche ◽  
W. Musial ◽  
J. Allread ◽  
...  
Keyword(s):  
Wind Turbine ◽  
Turbine Blade ◽  
Wind Turbine Blade ◽  
Non Destructive ◽  
Non Destructive Techniques

Analysis on Vibration Characteristics of Wind Turbine Blade to Improve the Effectiveness through CFD Developed by ANSYS

2018 ◽  
Vol 937 ◽  
pp. 43-50
Author(s):  
M. Rajaram Narayanan ◽  
S. Nallusamy
Keyword(s):  
Shape Memory Alloys ◽  
Shape Memory ◽  
Wind Turbine ◽  
Natural Frequency ◽  
Turbine Blade ◽  
Turbine Blades ◽  
Vibration Characteristics ◽  
Wind Turbine Blade ◽  
Horizontal Axis Wind Turbine ◽  
Damping Material

In the current scenario, there is a continuous need for increasing the efficiency of the aerodynamics of wind turbine blades through research studies. Vibration in a wind turbine blade has lot to do on its performance. An effective approach is required by wind mill including to control the vibration to achieve better results. The objective of this research is to investigate the vibration characteristics of the prototype horizontal axis wind turbine blade developed by using 3D modelling software. Shape memory alloys with their variable material properties offer an alternative adaptive mechanism hence it is used as a damping material. A prototype blade with S1223 profile was manufactured and the natural frequency was found over the surface of the blade. Similarly, results were studied by increasing the number of alloys wires over the blade up to three. Results showed that the embedment of shape memory alloys over the blade’s surface increases the natural frequency and reduce the amplitude of vibration because of super elastic nature of alloys. Also it was observed that the natural frequency increased by 6% and reduced the amplitude by about 93% where three wires of 0.5mm diameter were kept for the length of 720mm.

Simulation Analysis of Guided Wave Testing on Wind Turbine Blade Shell with Epoxy Resin and Semi-Analytical Finite Element Modeling

2012 ◽  
Vol 182-183 ◽  
pp. 1362-1366 ◽  
Author(s):  
Fang Jun Zhou ◽  
Yong Liang Sun ◽  
Yue Min Wang ◽  
Feng Rui Sun
Keyword(s):  
Finite Element ◽  
Wind Turbine ◽  
Turbine Blade ◽  
Simulation Analysis ◽  
Wave Dispersion ◽  
Guided Wave ◽  
Wind Turbine Blade ◽  
Destructive Testing ◽  
Dynamical Simulation ◽  
Non Destructive

Non destructive testing is very important on wind turbine blade since wind energy has been an upgrowing industry as green energy.For the linetype of blade is twisty ,it can not be described easily in Cartesian orthonormal coordinate.A special twisty coordinate system is proposed.The wave dispersion curve of blade shell is calculated by semi-analytical finite element method and dynamical simulation of wave propagation on blade is finished.Both results agree well,showing the validity of guided wave testing on wind turbine blade.

Noise analysis of the wind turbine blade

2013 ◽  
Author(s):  
Gwochung Tsai ◽  
Yita Wang ◽  
Yuhchung Hu ◽  
Jaching Jiang
Keyword(s):  
Wind Turbine ◽  
Turbine Blade ◽  
Noise Analysis ◽  
Wind Turbine Blade
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