J0503-2-2 Development of a finite element analysis code for wind turbines

2009 ◽  
Vol 2009.7 (0) ◽  
pp. 85-86
Author(s):  
Mikio SHIMIZU ◽  
Go SAKAGUCHI ◽  
Jyun-ichi SATO
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Wind Turbines ◽  
Element Analysis

scholarly journals Performance Analysis of Reinforced Epoxy Functionalized Carbon Nanotubes Composites for Vertical Axis Wind Turbine Blade

Polymers ◽  
2021 ◽  
Vol 13 (3) ◽  
pp. 422
Author(s):  
Yasser Elhenawy ◽  
Yasser Fouad ◽  
Haykel Marouani ◽  
Mohamed Bassyouni
Keyword(s):  
Carbon Nanotubes ◽  
Finite Element Analysis ◽  
Finite Element ◽  
Epoxy Resin ◽  
Turbine Blade ◽  
Wind Turbines ◽  
Vertical Axis ◽  
Epoxy Nanocomposites ◽  
Element Analysis ◽  
Vertical Axis Wind Turbines

Synthetic materials using epoxy resin and woven Kevlar fiber nanocomposites were fabricated in the presence of functionalized multiwalled carbon nanotubes (F-MWCNTs). Kevlar-reinforced epoxy nanocomposites were designed to manufacture a small blade of vertical axis wind turbines (VAWT). It is important to estimate the deflection of the versatile composite turbine blades to forestall the blades from breakage. This paper investigates the effect of F-MWCNTs on mechanics and deflection of reinforced epoxy composites. The outcomes show that the mixing of F-MWCNTs with epoxy resin using a sonication process has a significant influence on the mechanical properties. Substantial improvement on the deflections was determined based on finite element analysis (FEA). The vortices from the vertical axis wind turbines (VAWTs) blades have a negative impact on power efficiency, since small blades are shown to be effective in reducing tip vortexes within the aerospace field. To support the theoretical movement of the VAWT blade, modeling calculations and analyzes were performed with the ANSYS code package to achieve insight into the sustainability of epoxy nanocomposites for turbine blade applications below aerodynamic, gravitational, and centrifugal loads. The results showed that the addition of F-MWCNTs to epoxy and Kevlar has a significant effect on the bias estimated by finite element analysis. ANSYS analysis results showed lower deflection on the blade using epoxy with an additional of 0.50 wt.% of MWCNTs-COOH at tip speed ratios of 2.1, 2.6, and 3.1.

scholarly journals Non-linear finite element analysis of grouted connections for offshore monopile wind turbines

2019 ◽  
Vol 171 ◽  
pp. 633-645 ◽  
Author(s):  
Nikolaos I. Tziavos ◽  
Hassan Hemida ◽  
Nicole Metje ◽  
Charalampos Baniotopoulos
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Wind Turbines ◽  
Element Analysis ◽  
Linear Finite Element ◽  
Non Linear

Contact Simulation and Analysis on Planetary Gear of Megawatt Wind Turbines Yawing Reducer

2012 ◽  
Vol 455-456 ◽  
pp. 187-193 ◽  
Author(s):  
Jia Qiang E ◽  
Jiang Dong Dong ◽  
Guan Lin Liu
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Wind Turbines ◽  
Maximum Stress ◽  
Three Dimensional ◽  
Planetary Gear ◽  
Tooth Surface ◽  
Operation Condition ◽  
Element Analysis ◽  
Operation Process

.According to the operation condition of megawatt wind turbines yawing reducer, an assembly model of megawatt wind turbines yawing reducer is established, and aiming at different load conditions, the tooth surface of three teeth planetary gear model is analysised with using finite element analysis software-ANSYS ,including three-dimensional nonlinear contact analysis and structural finite element analysis which simulates contact stress of engagement pairs during the operation process of planetary gear. The results indicated that when the torque is M1=100N·m, the maximum stress on the engagement pairs is 177.584MPa; when the torque is and M2=300N·m, the maximum stress on the engagement pairs is 329.607MPa, which were less than the yield limit of planetary gear materials, but it can meet the design and operation requirements of planetary gear of megawatt wind turbines yawing reducer.

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