An efficient procedure for the calculation of the stress distribution in a wind turbine blade under aerodynamic loads

2018 ◽  
Vol 172 ◽  
pp. 42-54 ◽  
Author(s):  
Garbiñe Fernandez ◽  
Hodei Usabiaga ◽  
Dirk Vandepitte
Keyword(s):  
Stress Distribution ◽  
Wind Turbine ◽  
Turbine Blade ◽  
Wind Turbine Blade ◽  
Efficient Procedure ◽  
Aerodynamic Loads

scholarly journals Factors affecting stress distribution in wind turbine blade

2019 ◽  
Vol 610 ◽  
pp. 012020
Author(s):  
Diaaeldin M Elsherif ◽  
Ayman A Abd El-Wahab ◽  
Mohamed Hazem Abdellatif
Keyword(s):  
Stress Distribution ◽  
Wind Turbine ◽  
Turbine Blade ◽  
Wind Turbine Blade ◽  
Factors Affecting

Flutter Suppression of Wind Turbine Blade Using Adaptive Control

2013 ◽  
Author(s):  
Nailu Li ◽  
Mark J. Balas
Keyword(s):  
Adaptive Control ◽  
Wind Turbine ◽  
Turbine Blade ◽  
Adaptive Controller ◽  
Wind Turbine Blade ◽  
Aeroelastic System ◽  
Aerodynamic Loads ◽  
Flutter Suppression ◽  
Control Scheme ◽  
Trailing Edge Flap

The variation of aeroelastic system dynamics is treated as the change of time-varying aerodynamic loads over rotating wind turbine blade. An Adaptive Control scheme is introduced to suppress blade fluttering, caused by unsteady aerodynamic loads, with trailing-edge flap. The robustness and effectiveness of designed Adaptive Controller are shown by good simulation results. For stability analysis, the proposed Adaptive Stability Theorem is proved theoretically by Kalman-Yacubovic Lemma and also illustrated numerically by certain case.

Analysis of the Adhesive-Bonded Joint Stress in a MW Segmented Assembly Wind Turbine Blade

2013 ◽  
Vol 364 ◽  
pp. 154-158
Author(s):  
Lang Liu ◽  
Gong Yu Li ◽  
Jie Sun ◽  
Qing Bo Liu
Keyword(s):  
Stress Distribution ◽  
Wind Turbine ◽  
Principal Stress ◽  
Turbine Blade ◽  
Adhesive Layer ◽  
Interface Layer ◽  
Maximum Principal Stress ◽  
Wind Turbine Blade ◽  
Joint Stress ◽  
Bonded Joint

The stress distribution of adhesive-bonded joint in a MW segmented assembly wind turbine blade under static loading is analysed using finite element method (FEM). It is shown that the maximum principal stress causes the adhesive layer destruction away from the loading end of the sleeve layer. Numerically, the interface layer destruction trend of the adhesive-bonded joint is investigated, and the influence of maximum principal stress distribution by altering the sleeve length is investigated.

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