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Experimental Study of Aeroelasticity for the Blades of Horizontal Axis Wind Turbines

Author: ChengPeng
Tutor: LiHui
School: Harbin Institute of Technology
Course: Disaster Prevention and Reduction Engineering and Protective Engineering
Keywords: Wind turbine Wind tunnel test Aeroelastic Blade
CLC: TK83
Type: Master's thesis
Year: 2009
Downloads: 146
Quote: 3
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Abstract


With the development of society and the progress of science and technology , compared with the traditional energy , wind energy and the sudden emergence of large reserves of its own , widely distributed and less environmental pollution irreplaceable advantages . For commercial wind turbine aeroelastic stability issues are still of concern , especially classic stall flutter , stall-regulated wind turbine , and variable pitch type wind turbine flutter . In order to improve the safety and reliability of the wind turbine system , you need to have a deep understanding of the response of wind turbine system under wind loads . Therefore, this article is based on the wind turbine aeroelastic model of wind turbine blades aerodynamic , inertial force , the elastic force and the Coriolis force coupling response . The main contents of this paper include : First , based on the size of the wind tunnel and the requirements of the wind tunnel aeroelastic experiments , the design of wind turbine aeroelastic model , the top support and the bottom of the support as well as cable-stayed support system and achieve the integration of the data acquisition system . Secondly , based on NUBRS reverse engineering theory, surface modeling capabilities of the wind turbine blade section properties analysis of its cross-section of the measuring point , on this basis, import into ANSYS . Finally, based on the direction of aeroelastic model of wind turbine blade wielding , shimmy direction and the measured value of the torque given waving direction , the instantaneous average shimmy direction and a torsional direction of the bending moment , and based on the analysis of experimental data and momentum blade element theory gives the explanation of the phenomenon , and further elaborated in the wind turbine stall flutter phenomenon .

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CLC: > Industrial Technology > Energy and Power Engineering > Wind energy, wind machine > Wind machinery and equipment
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