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Showing 1 to 20 of 42 for “"Wind turbine blade"”.
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Structural design of waste-thermoplastic wind turbine blade
Wind turbine blades are unrecyclable at end of life, which has led to the testing of thermoplastics to replace thermosets in the composite; thus making recycling possible. Another challenge, waste plastics of which 55% of all plastics produced in 2015 were discarded into the environment. Utilising …
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Small Wind Turbine Blade Sensor for Condition Based Maintenance
<p>Wind Energy is a fast growing industry. However, wind turbines are expensive to build, so they need proper maintenance to prolong service life. Since blades are the most important components in the wind turbine, this project prototyped a low cost sensing system to monitor blades' health. The …
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A Hybrid Multi-Objective Evolutionary Algorithm for Wind-Turbine Blade Optimization
… Renewable Energy Laboratory's (NREL) 5MW wind-turbine blade. To estimate the aerodynamic and structural performance, blade element momentum (BEM) and beam models were developed and validated. By hybridizing a multi-objective evolutionary algorithm (MOEA) with gradient-based local search, …
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Development of Vacuum Assisted Composites Manufacturing Technology for Wind Turbine Blade Manufacture
Wind turbine blade manufacturers employ the vacuum infusion technique to produce monolithic and sandwich cored components, recent innovations have seen companies such as Siemens develop products which incorporate an internal composite structure in a single process (Siemens 2008). This thesis …
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Vibrations of an isolated wind turbine blade using the finite element method
… method is applied to an isolated and twisted wind turbine blade which is rotating in a vertical plane to determine its structural dynamic characteristics. The equations of motion are formulated for a rotating beam with flap and lead-lag degrees of freedom subjected to nonsymmetric bending. …
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Fluid-structure Interaction and Multidisciplinary Design Analysis Optimization of Composite Wind Turbine Blade
… (MDAO) process is defined for a composite wind turbine blade to optimize its aerodynamic and structural performance by developing a fluid-structural interaction (FSI) system. The objectives are to maximize aerodynamic efficiency and structural robustness while reducing blade mass and total …
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The infuence of hail on wind turbine blade leading edge erosion and damage
Wind turbine blade damage, particularly leading edge erosion, is a signifcant problem faced by the renewable energy industry. Wind turbines are subject to a wide range of environmental factors during a 20+ year lifespan, with hailstones often touted as a key contributor to the deterioration of …
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A method to estimate wind turbine blade damage and to design damage resilient blades
Wind turbine blades are affected by continuous impacts with airborne particles that deteriorate the blade surface and yield to a drop in output power. Based on the climatic conditions and geographic locations of a given wind farm, multiple types of particles are observed in air. The present study …
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Development of Multidisciplinary Design Optimization Process for a Large Scale Hybrid Composite Wind Turbine Blade
… (MDO) of a large scale hybrid composite wind turbine blade is performed. Multiple objectives are considered in the MDO process to maximize annual energy production and lifetime profit, minimize weight and power production rate. A wind turbine blade is divided into regions and the layup …
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Study on mechanical properties of cork composites in a sandwich panel for wind turbine blade material
Wind energy has become one of the most promising energy sources due to its environmentally friendliness, unlimited amounts. To become competitive energy source among other sustainable and clean energy, such as solar cell, tidal energy, the price to produce the wind energy should drop and stable …
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An experimental approach into the degradation of wind turbine blade coating systems due to rain and weathering
Leading edge erosion of wind turbine blades is an issue which is increasing in prevalence due to the ever-growing installed capacity of wind turbines globally. Leading edge erosion causes a reduction in the aerodynamic efficiency of a wind turbine blade, in turn reducing the turbine’s energy yield …
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Exploration of a Computational Fluid Dynamics Integrated Design Methodology for Potential Application to a Wind Turbine Blade
… to conduct a parametric sensitivity study on the blade design of AOC 15/50 wind turbine based on a CFD approach and optimize the blade design for maximizing the power output. The ANSYS® Fluent® flow solver using the k-ω SST turbulence model was validated by simulating the flow over two dimensional …
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Linear and non-linear deformations of a wind turbine blade considering warping and all aeroelastic load couplings
<p> <i>The structural dynamics behavior of the blade of a horizontal axis wind turbine that reacts to the different components of the aerodynamic loading were studied by many researchers using different approaches and assumptions. In the present research, the author considered all the extensional, …
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3D Aerodynamic Optimization of NREL VI Wind Turbine Blade for Increased Power Output and Visualization of Flow Characteristics
… focuses on the aspect of optimization of NREL VI wind turbine blade for increased power output using commercial solver ANSYS 14.5. The power curve obtained from BEMT, Baseline NREL VI CFD Simulations and Optimized Blade Simulations are compared with experimental results. Over prediction is …
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The Development of a Phase Locked Wind Turbine Blade Finite Element Model to Predict Loads and Deflections During Fatigue Testing
<p>Full scale blade testing provides blade manufacturers with quantitative data in order to assess blade design, manufacturing and durability. Structural testing is a requirement in order to design reliable blades, and to develop a further understanding of the dynamics involved in a modern turbine …
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Establishing the optimal conditions for rotating arm erosion testing, materials characterisation and computational modelling of wind turbine blade rain erosion
… edge erosion is a growing issue within the wind industry; impacting upon blade performance and efficiency. Even with the wide range of research being conducted, there are currently no apparent foolproof material solutions for the issue. The research presentedhere looks to develop a better …
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Verification and validation of the geometrically exact beam theory with Legendre spectral finite elements for wind turbine blade analysis, A
Composite wind turbine blades continue to get larger and have more complex geometry than ever before. Additionally, they are becoming lighter in proportion to their size. Lighter and larger wind turbine blades result in structures that are highly flexible. It is necessary to have computer aided …
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The Development of an Adaptive Control System for a Phase-Locked Excitation (PhLEX) Method for Advanced Wind Turbine Blade Fatigue Testing
… Renewable Energy Laboratory's (NREL) National Wind Technology Center (NWTC) provides the means necessary for advanced wind turbine blade testing. To improve on the current testing methods, a new testing method is being developed using the existing dual-axis fatigue testing capabilities in …
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