Structural Analysis of a Wind Turbine Blade

2013 ◽  
Vol 768 ◽  
pp. 40-46 ◽  
Author(s):  
A. Benham ◽  
K. Thyagarajan ◽  
Sylvester J. John ◽  
S. Prakash
Keyword(s):  
Structural Analysis ◽  
Carbon Fiber ◽  
Wind Turbine ◽  
Turbine Blade ◽  
Fiber Composites ◽  
Wind Turbine Blade ◽  
Kevlar Fiber ◽  
Ansys Apdl ◽  
Drag Ratio ◽  
Lift To Drag Ratio

Wind turbines blades of propeller type are made according to various blade profiles such as NACA, LS, and LM. There are many factors for selecting a profile. One significant factor is the chord length, which depend on various values throughout the blade. In this work a NACA 4412 profile was created using DESIGN FOIL software to obtain the coordinates of a wind turbine blade in PRO/E. Aerodynamic analysis was done on the created design. Maximum lift to drag ratio was calculated by varying angle of attack of the blade. To find a suitable composite for wind turbine blade, Modal and Static analysis were performed on the modified design using Carbon fiber, E-Glass, S-Glass and Kevlar fiber composites in ANSYS APDL 12.0 software.

A Method of Eliminating Ice on Wind Turbine Blade by Using Carbon Fiber Composites

2013 ◽  
Vol 774-776 ◽  
pp. 1322-1325 ◽  
Author(s):  
Chang Liang Li ◽  
Xin Cui ◽  
Zhi Hua Wu ◽  
Jing Cheng Zeng ◽  
Su Li Xing
Keyword(s):  
Carbon Fiber ◽  
Surface Temperature ◽  
Wind Turbine ◽  
Turbine Blade ◽  
Fiber Composite ◽  
Fiber Composites ◽  
Wind Turbine Blade ◽  
Composite Panel ◽  
Carbon Fiber Composites ◽  
Carbon Fiber Composite

In this work, a method to eliminate ice on wind turbine blade by using carbon fiber composites was put forward. To prove that this idea is feasible, a carbon fiber composite panel with its ends soaked by the conductive silver paste was fabricated and surface temperature of it at three levels of voltages was measured. The surface temperature of the composite panel increased significantly and finally retained a constant, which shows that the carbon fiber composites can be used to eliminate ice when the glass fabric composite blades are covered by the carbon fiber composites.

scholarly journals Numerical Investigation of Performance Enhancement of the S809 Airfoil and Phase VI Wind Turbine Blade Using Co-Flow Jet Technology

Energies ◽  
2021 ◽  
Vol 14 (21) ◽  
pp. 6933
Author(s):  
Shunlei Zhang ◽  
Xudong Yang ◽  
Bifeng Song
Keyword(s):  
Wind Turbine ◽  
Turbine Blade ◽  
Performance Enhancement ◽  
Lift Coefficient ◽  
Wind Turbine Blade ◽  
Power Coefficient ◽  
Speed Ratio ◽  
Momentum Coefficient ◽  
Drag Ratio ◽  
Lift To Drag Ratio

Making full use of wind energy can effectively alleviate the global energy shortage and environment contamination problems. Nevertheless, how to significantly improve the performance of the wind turbine airfoil and blade is a crucial issue. As the novel flow control method, the co-flow jet (CFJ) technology is one of the most potential methods to solve this problem. Thus, the effects of the CFJ technology on the performance enhancement of the S809 airfoil and Phase VI wind turbine blade are explored in this study. Furthermore, the effects of the injection location and jet momentum coefficient are studied, and an adaptive jet momentum coefficient strategy of the CFJ technology is proposed. Results demonstrate that the CFJ technology can significantly improve the maximum lift coefficient and maximum corrected lift-to-drag ratio of the S809 airfoil. Moreover, the power coefficient of the Phase VI wind turbine blade at the low tip speed ratio is greatly enhanced as well. In particular, the maximum lift coefficient and maximum corrected lift-to-drag ratio of the typical S809 CFJ airfoil with adaptive Cμ are improved by 119.7% and 36.2%, respectively. The maximum power coefficient of CFJ blade can be increased by 4.5%, and the power coefficient of CFJ blade can be boosted by 226.7% when the tip speed ratio is 1.52.

scholarly journals Optimized Carbon Fiber Composites in Wind Turbine Blade Design.

2019 ◽  
Author(s):  
Brandon Lee Ennis ◽  
Christopher Lee Kelley ◽  
Brian Thomas Naughton ◽  
Bob Norris ◽  
Sujit Das ◽  
...  
Keyword(s):  
Carbon Fiber ◽  
Wind Turbine ◽  
Turbine Blade ◽  
Fiber Composites ◽  
Wind Turbine Blade ◽  
Carbon Fiber Composites ◽  
Blade Design ◽  
Turbine Blade Design

Load application method for shell finite element model of wind turbine blade

2018 ◽  
Vol 42 (5) ◽  
pp. 467-482 ◽  
Author(s):  
Damien Caous ◽  
Nicolas Lavauzelle ◽  
Julien Valette ◽  
Jean-Christophe Wahl
Keyword(s):  
Finite Element ◽  
Structural Analysis ◽  
Finite Element Model ◽  
Wind Turbine ◽  
Turbine Blade ◽  
Element Model ◽  
Wind Turbine Blade ◽  
Detailed Structural Analysis ◽  
Body Load ◽  
Shell Finite Element

It is common to dissociate load computation from structural analysis when carrying out a numerical assessment of a wind turbine blade. Loads are usually computed using a multiphysics and multibody beam finite element model of the whole turbine, whereas detailed structural analysis is managed using shell finite element models. This raises the issue of the application of the loads extracted from the beam finite element model at one node for each section and transposed into the shell finite element model. After presenting the methods found in the literature, a new method is proposed. This takes into account the physical consistency of loads: aerodynamic loads are applied as pressure on the blade surface, and inertial loads are applied as body loads. Corrections imposed by pressure and body load computation in order to match loads from the beam finite element model are proposed and a comparison with two other methods is discussed.

scholarly journals Aerodynamics and structural analysis of wind turbine blade

2018 ◽  
Vol 22 ◽  
pp. 747-756 ◽  
Author(s):  
Sanaa El Mouhsine ◽  
Karim Oukassou ◽  
Mohammed Marouan Ichenial ◽  
Bousselham Kharbouch ◽  
Abderrahmane Hajraoui
Keyword(s):  
Structural Analysis ◽  
Wind Turbine ◽  
Turbine Blade ◽  
Wind Turbine Blade

Layup Analyzing of a Carbon/Glass Hybrid Composite Wind Turbine Blade Using Finite Element Analysis

2011 ◽  
Vol 87 ◽  
pp. 49-54 ◽  
Author(s):  
Hai Chen Lin
Keyword(s):  
Finite Element ◽  
Carbon Fiber ◽  
Wind Turbine ◽  
Glass Fiber ◽  
Turbine Blade ◽  
Carbon Fibers ◽  
Fiber Composite ◽  
Wind Turbine Blade ◽  
Fiber Reinforced ◽  
Carbon Fiber Composite

This thesis use AOC15/50 blade as baseline model which is a composite wind turbine blade made of glass/epoxy for a horizontal axis wind turbine. A finite element modeling of composite wind turbine blade was created using the SHELL element of ANSYS. Then we study how to use the carbon fiber material replaces the glass fiber to make the hybrid blade, and find a suitable layup to improve the performance of the blade. The hybrid blade was made through introducing carbon fibers. Different models, with introducing different number of carbon fibers, 75% carbon fibers replace unidirectional glass fibers in spar cap of blade model which can achieve best structure performance. The wind turbine blades are often fabricated by hand using multiple of glass fiber-reinforced polyester resin or glass fiber-reinforced epoxy resin. As commercial machines get bigger, this could not to meet the demands. The advantages of carbon fiber composite materials are used by blade producer. Studies show that carbon fiber has high strength-to-weight ratio and resistance fatigue properties. Carbon fiber is mixed with epoxy resin to make into carbon fiber-reinforced polymer. Carbon fiber-reinforced polymer is the one of best blade materials for resistance bad weather. The stiffness of carbon fiber composite is 2 or 3 times higher than glass fiber composite [1], but the cost of carbon fiber composite is 10 times higher than glass fiber composite. If all of wind turbine blades are made of carbon fiber composite, it will be very expensive. Therefore carbon/glass fiber hybrid composite blade has become a research emphasis in the field of blade materials. This paper gives an example of finite element modeling composite wind turbine blade in ANSYS by means of the medium-length blade of AOC 15/50 horizontal axis wind turbine. This model can be directly used in dynamics analysis and does not need to be imported from the CAD software into finite element program. This finite element modeling of composite wind turbine blade was created using the SHELL element of ANSYS. Then we study how to use the carbon fiber material replaces the glass fiber to make the hybrid blade, and find a suitable lay-up to improve the performance of the blade.

RANCANGAN DAN ANALISIS STRUKTUR SUDU TURBIN ANGIN LPN 10000 E

2010 ◽  
Vol 3 (2) ◽  
Author(s):  
Sulistyo Atmadi ◽  
Firman Hartono
Keyword(s):  
Structural Analysis ◽  
Wind Turbine ◽  
Turbine Blade ◽  
Safety Factor ◽  
Bending Moment ◽  
High Strength ◽  
Wind Turbine Blade ◽  
Unidirectional Reinforcement ◽  
Composite Blade ◽  
Operational Load

Structure of the LPN 10000 E wind turbine blade has been manufactured and its structural analysis to find out the strenght of this structure during its operation has also been conducted. The method of aero bending moment and centrifugal bending moment and load has been used while neglegting frcitional and torsional load. The analysis is obtained for composite blade strengthened by high strength carbon unidirectional reinforcement composite. With safety factor of 1.3 minimum, it was concluded that the blade is strong enough to use at its designed operational load.

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