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Structure Dynamic Study of Horizontal Axis Wind Turbines

Author: YinJingXun
Tutor: KangShun
School: North China Electric Power University (Beijing)
Course: Fluid Machinery and Engineering
Keywords: Blade Tower Wind Turbine Natural Characteristics Dynamic Response
CLC: TK83
Type: Master's thesis
Year: 2009
Downloads: 245
Quote: 4
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Abstract


Natural characteristics of the blade and tower,as well as the natural frequency and dynamic response of wind turbines,are investigated by using the simulation programs made by FORTRAN for Horizontal Axis Wind Turbines in this paper.The blade and tower are simplified as cantilever beams.The natural characteristics of them are calculated in matrix method.The program can calculate natural frequencies of the NREL Phase V blade,and the results are compared with experimental data.While the natural characteristic for the blade and tower of Turbowinds T600-48 is also calculated,and the results are investigated in comparison with the references.Based on Momentum and Blade element theory and Lagrange’s Equation with multiple degrees of freedom in generalized coordinates,motion equation of the coupling system with rotor,nacelle and tower in a horizontal axis wind turbine has been built up by using the modal analysis method,and a simulation program is then made with FORTRAN.By using the program,characteristics of the natural frequency and dynamic response of Turbowinds T600-48 have been computed.The predicted results are in good consistent with the experimental data.The dynamic response of VUB-H8 has also been calculated.

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