Anti-flutter optimization design of airfoil for wind turbine blade

2018 ◽  
Vol 10 (1) ◽  
pp. 013307
Author(s):  
Qiang Gao ◽  
Xin Cai ◽  
Rui Meng ◽  
Jie Zhu
Keyword(s):  
Wind Turbine ◽  
Turbine Blade ◽  
Optimization Design ◽  
Wind Turbine Blade

scholarly journals Structural Optimization Design of Large Wind Turbine Blade considering Aeroelastic Effect

2017 ◽  
Vol 2017 ◽  
pp. 1-7
Author(s):  
Yuqiao Zheng ◽  
Yongyong Cao ◽  
Chengcheng Zhang ◽  
Zhe He
Keyword(s):  
Structural Optimization ◽  
Wind Turbine ◽  
Turbine Blade ◽  
Optimization Design ◽  
Large Scale ◽  
Wind Turbine Blade ◽  
Mathematical Simulations ◽  
Blade Tip ◽  
And Performance ◽  
Large Wind

This paper presents a structural optimization design of the realistic large scale wind turbine blade. The mathematical simulations have been compared with experimental data found in the literature. All complicated loads were applied on the blade when it was working, which impacts directly on mixed vibration of the wind rotor, tower, and other components, and this vibration can dramatically affect the service life and performance of wind turbine. The optimized mathematical model of the blade was established in the interaction between aerodynamic and structural conditions. The modal results show that the first six modes are flapwise dominant. Meanwhile, the mechanism relationship was investigated between the blade tip deformation and the load distribution. Finally, resonance cannot occur in the optimized blade, as compared to the natural frequency of the blade. It verified that the optimized model is more appropriate to describe the structure. Additionally, it provided a reference for the structural design of a large wind turbine blade.

The Ply Optimum Design of Composites Wind Turbine Blade Based on the Local Stability

2014 ◽  
Vol 988 ◽  
pp. 445-448 ◽  
Author(s):  
Ying Jun Wang ◽  
Si Rong Zhu ◽  
Jian Jun Wang
Keyword(s):  
Wind Turbine ◽  
Turbine Blade ◽  
Local Stability ◽  
Optimization Design ◽  
Wind Turbine Blade ◽  
Fiber Reinforced Polymer ◽  
Reinforced Polymer ◽  
Fiber Reinforced Polymer Composites ◽  
The Stability ◽  
Ply Orientation

Fluid-solid coupling calculations are performed on design of a wind turbine blade made by fiber reinforced polymer composites. The length of the blade is 46m, and it is for a 3MW-capacity power station. By the finite element method, the initial design on the ply is carried out under the case of static loads. Then, the eigenvalue buckling theory is used to analyze the stability. In the process of design, sections of the blade which have different stiffness have different ply orientation and thickness. Thus, the local structural stiffness is enhanced, and the local stability of the blade is improved. The results show that the buckling load coefficient increases from 3.3 to 4.2, and the weight of the blade reduces by 4.5%. The aim of optimization design on the wind turbine blade has been achieved.

Validation of AWTSim as Aerodynamic Analysis for Design Wind Turbine Blade

2014 ◽  
Vol 493 ◽  
pp. 105-110
Author(s):  
I Kade Wiratama
Keyword(s):  
Wind Turbine ◽  
Turbine Blade ◽  
Pitch Angle ◽  
Optimization Design ◽  
Aerodynamic Performance ◽  
Wind Turbine Blade ◽  
Power Coefficient ◽  
Power Curve ◽  
Aerodynamic Analysis

This paper presents the results of validation AWTSim code and this code has been used to analyze aerodynamic performance in the optimization design blade wind turbine. The validation was performed to know the accuracy of AWTSim code compared to WT_Perf by using the test wind turbine blade AWT-27. Blade AWT-27 was taken as the case for all through of this study and the design pitch angle for blade AWT-27 was 1.2° to stall (-1.2). However, in order to compare the results with available results, pitch angles 0, 1 and 2 degrees to stall were considered for simulation. The results of validation show that the predicted power curve, power coefficient and thrust by two codes are almost similar or less than 1%.

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