scholarly journals Design optimization of a wind turbine blade under non-linear transient loads using analytic gradients

2020 ◽  
Vol 1618 ◽  
pp. 042032
Author(s):  
Jenna Iori
Keyword(s):  
Wind Turbine ◽  
Design Optimization ◽  
Turbine Blade ◽  
Wind Turbine Blade ◽  
Non Linear ◽  
Transient Loads

Aeroelastic multidisciplinary design optimization of a swept wind turbine blade

Wind Energy ◽  
2017 ◽  
Vol 20 (12) ◽  
pp. 1941-1953 ◽  
Author(s):  
Christian Pavese ◽  
Carlo Tibaldi ◽  
Frederik Zahle ◽  
Taeseong Kim
Keyword(s):  
Wind Turbine ◽  
Design Optimization ◽  
Turbine Blade ◽  
Multidisciplinary Design Optimization ◽  
Wind Turbine Blade ◽  
Multidisciplinary Design

scholarly journals Dynamic Instability of a Wind Turbine Blade Due to Large Deflections: An Experimental Validation

2020 ◽  
Vol 66 (9) ◽  
pp. 523-533
Author(s):  
Andres Lopez-Lopez ◽  
Jose Billerman Robles-Ocampo ◽  
Perla Yazmin Sevilla-Camacho ◽  
Orlando Lastres-Danguillecourt ◽  
Jesús Muniz ◽  
...  
Keyword(s):  
Wind Turbine ◽  
Turbine Blade ◽  
Experimental Validation ◽  
Dynamic Instability ◽  
Turbine Blades ◽  
Wind Turbine Blade ◽  
Large Deflections ◽  
Wind Turbine Blades ◽  
Non Linear ◽  
Linear Behaviour

Wind turbine blades are designed to be thin and flexible elements. Because unstable dynamic behaviour can affect the life of the rotor, it is crucial to understand the instability of non-linear behaviour caused by large deflections. The present study undertakes both a stability analysis of the non-linear response and an experimental validation of a simplified model for a wind turbine blade based on a cantilever beam. The model is formulated taking into account large geometric deflections and assuming a Galerkin approach. The model is validated experimentally in a wind tunnel with aluminium beams of differing geometry. Analysis of the dynamic response using phase planes reveals that the degree of instability is related to the amplitude of the excitation and the stiffness characteristics.

Composite Wind Turbine Blade Aerodynamic and Structural Integrated Design Optimization Based on RBF Meta-Model

2015 ◽  
Vol 813 ◽  
pp. 10-18 ◽  
Author(s):  
Yong Zhi Wang ◽  
Feng Li ◽  
Xu Zhang ◽  
Wei Min Zhang
Keyword(s):  
Finite Element ◽  
Structural Analysis ◽  
Wind Turbine ◽  
Design Optimization ◽  
Turbine Blade ◽  
Computational Cost ◽  
Integrated Design ◽  
Optimization Method ◽  
Wind Turbine Blade ◽  
Meta Model

An aerodynamic and structural integrated design optimization method of composite wind turbine blade based on multidisciplinary design optimization (MDO) is presented. The optimization aims to reduce the mass of blade under some constraints, including the power and deflection at the rated wind speed, and the strength and deflection under ultimate case. The design variables include parameters both in aerodynamic and structural disciplines. In order to keep the shape of blade smooth,the chord and twist distributions are controlled by the Bezier function in the optimization process. 3D parameterization of blade was carried out in Finite Element Analysis (FEA) software. Considering tip-loss and hub-loss, aerodynamic analysis was performed by using Blade Element Momentum (BEM) theory. Finite Element Method (FEM) was used in structural analysis. Multi-island Genetic Algorithm (MIGA) which has excellent exploration abilities was used to optimize wind turbine blade. RBF meta-model was construct to approximate the accurate structural analysis model by Optimal Latin Hypercube DOE sample points. An example was given to verify the method in this paper. The result shows that the optimization method has good optimization efficiency and the RBF meta-model could reduce the computational cost a lot.

Multi-Objective Design Optimization of Wind Turbine Blade Bearing

2021 ◽  
Vol 14 (3) ◽  
pp. 114-121
Author(s):  
Prasun Bhattacharjee ◽  
Rabin K. Jana ◽  
Somenath Bhattacharya
Keyword(s):  
Wind Turbine ◽  
Design Optimization ◽  
Turbine Blade ◽  
Wind Turbine Blade ◽  
Multi Objective

Non-linear dynamic analysis of a wind turbine blade

2019 ◽  
Vol 42 (8) ◽  
pp. 727-737 ◽  
Author(s):  
R. Maktouf ◽  
M. Yangui ◽  
T. Fakhfekh ◽  
R. Nasri ◽  
M. Haddar
Keyword(s):  
Dynamic Analysis ◽  
Wind Turbine ◽  
Turbine Blade ◽  
Wind Turbine Blade ◽  
Linear Dynamic ◽  
Non Linear
Sign in / Sign up

Export Citation Format

Share Document