&nbsp;Aeroelastic analysis of rotating horizontal axis wind turbine blade for classis flutter

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Journal of Vibration and Shock ›› 2015, Vol. 34 ›› Issue (23) : 171-176.

Aeroelastic analysis of rotating horizontal axis wind turbine blade for classis flutter

Nailu Li 1 Anle Mu 2 Mark J. Balas 3

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Abstract

Aeroelastic characteristic of the rotating horizontal axis wind turbine blade is studied for classic flutter. The structural model of the blade is a classic vibration system, with two degree of freedom (flapwise and torsional blade oscillation), and periodic time-varying aerodynamic loads offered by Beddoes-Leishman dynamic model at the low angel of attack. The normalized structural model, is used to analyzed the effect of normalized wind velocity, blade stiffness, ratio between flapwise and torsional natural frequencies and blade damping on the aeroelastic stability of the rotating blade. The flutter boundary is found to reveal the characteristics of classic flutter of the rotating blade.

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rotating wind turbine blade / classic flutter / Beddoes-Leishman

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Nailu Li 1 Anle Mu 2 Mark J. Balas 3. Aeroelastic analysis of rotating horizontal axis wind turbine blade for classis flutter[J]. Journal of Vibration and Shock, 2015, 34(23): 171-176

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