Aeroelastic Responses for Wind Turbine Blade Considering Bend-Twist Coupled Effect

Aeroelastic Responses for Wind Turbine Blade Considering Bend-Twist Coupled Effect

The Euler-Bernoulli beam model coupled with the sectional properties obtained by the variational asymp totic beam sectional analysis （VABS） method is used to construct the blade structure model. Combined the aerody- namic loads calculated by unsteady blade element momentum model with a dynamic inflo...

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Veröffentlicht in:Transactions of Nanjing University of Aeronautics & Astronautics 2016-02, Vol.33 (1), p.16-25
Hauptverfasser: Li, Yijin, Wang, Tongguang
Format: Artikel
Sprache:eng
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Aerodynamic loads
Aeroelasticity
Blades
Dynamic mechanical properties
Dynamic structural analysis
Dynamics
Loads (forces)
Mathematical models
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Wang, Tongguang
description The Euler-Bernoulli beam model coupled with the sectional properties obtained by the variational asymp totic beam sectional analysis （VABS） method is used to construct the blade structure model. Combined the aerody- namic loads calculated by unsteady blade element momentum model with a dynamic inflow and the dynamic stall correction, the dynamics equations of blade are built. The Newmark implicit algorithm is used to solve the dynam- ics equations. Results of the sectional properties and blade structure model are compared with the multi-cell beam method and the ANSYS using shell elements. It is proved that the method is effective with high precision. Moreover, the effects on the aeroelastic response caused by bend-twist coupling are analyzed. Torsional direction is deflected toward the upwind direction as a result of coupling effects. The aerodynamic loads and the displacement are reduced.
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Combined the aerody- namic loads calculated by unsteady blade element momentum model with a dynamic inflow and the dynamic stall correction, the dynamics equations of blade are built. The Newmark implicit algorithm is used to solve the dynam- ics equations. Results of the sectional properties and blade structure model are compared with the multi-cell beam method and the ANSYS using shell elements. It is proved that the method is effective with high precision. Moreover, the effects on the aeroelastic response caused by bend-twist coupling are analyzed. Torsional direction is deflected toward the upwind direction as a result of coupling effects. The aerodynamic loads and the displacement are reduced.</description><identifier>ISSN: 1005-1120</identifier><language>eng</language><publisher>Jiangsu Key Laboratory of Hi-Tech Research for Wind Turbine Design, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, P.R.China</publisher><subject>Aerodynamic loads ; Aeroelasticity ; Blades ; Dynamic mechanical properties ; Dynamic structural analysis ; Dynamics ; Loads (forces) ; Mathematical models</subject><ispartof>Transactions of Nanjing University of Aeronautics &amp; Astronautics, 2016-02, Vol.33 (1), p.16-25</ispartof><rights>Copyright © Wanfang Data Co. Ltd. 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Combined the aerody- namic loads calculated by unsteady blade element momentum model with a dynamic inflow and the dynamic stall correction, the dynamics equations of blade are built. The Newmark implicit algorithm is used to solve the dynam- ics equations. Results of the sectional properties and blade structure model are compared with the multi-cell beam method and the ANSYS using shell elements. It is proved that the method is effective with high precision. Moreover, the effects on the aeroelastic response caused by bend-twist coupling are analyzed. Torsional direction is deflected toward the upwind direction as a result of coupling effects. 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subjects Aerodynamic loads
Aeroelasticity
Blades
Dynamic mechanical properties
Dynamic structural analysis
Dynamics
Loads (forces)
Mathematical models
title Aeroelastic Responses for Wind Turbine Blade Considering Bend-Twist Coupled Effect
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