Active flap control with the trailing edge flap hinge moment as a sensor: using it to estimate local blade inflow conditions and to reduce extreme blade loads and deflections [PDF]
Wind Energy Science, 2021 Active trailing edge flaps are a promising technology that can potentially enable further increases in wind turbine sizes without the disproportionate increase in loads, thus reducing the cost of wind energy even further.
S. Perez-Becker +2 more
doaj +2 more sources
Effect of load reduction mechanisms on loads and blade bearing movements of wind turbines
Wind Energy, 2020 The power control of wind turbines is usually realized via a change in the pitch angle of the rotor blades. Pitching facilitates the exact control of the turbines and the reliable deceleration of the rotor when required.
Matthias Stammler +4 more
doaj +2 more sources
Operational characteristics and blade fatigue life analysis of a novel variable-pitch wind turbine under natural wind conditions [PDF]
Scientific ReportsThis study was designed to investigate the nonlinear load behavior and fatigue life of distributed small wind turbines in natural turbulent wind fields through an in-situ field experiment.
Daorina Bao +6 more
doaj +2 more sources
Aerodynamics Analysis of Helicopter Rotor in Flight Test Using Strain Gauge Sensors [PDF]
SensorsThe acquisition of aerodynamic loads on helicopter rotors is fundamental to the study of helicopter performance optimization, structural design, flight control, and other aspects.
Shuaike Jiao, Jiahong Zheng
doaj +2 more sources
International Journal of Renewable Energy Development, 2023 A wind turbine blade is an essential system of wind energy production. During the operation of the blade, it is subjected to loads resulting from the impact of the wind on the surface of the blade.
Khalil Deghoum +6 more
doaj +1 more source
Load response of a two‐rotor floating wind turbine undergoing blade‐pitch system faults
Wind Energy, 2023 Multi‐rotor floating wind turbines are among the innovative technologies proposed in the last decade in the effort to reduce the cost of wind energy.
Omar El Beshbichi +2 more
doaj +1 more source
Swept Blade Dynamic Investigations for a 100 kW Small Wind Turbine
Energies, 2022 Most small–medium-sized turbine studies have focused on presenting new design methods and corresponding performance improvements rather than detailed dynamic investigations.
Ozan Gözcü +3 more
doaj +1 more source
Energies, 2022 Accurate prediction of the aerodynamic characteristics of wind rotors subjected to various wind profiles is of considerable importance in the aerodynamics and structural design of wind turbines.
Pan He, Jian Xia
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Toward the Instrumentation and Data Acquisition of a Tidal Turbine in Real Site Conditions
Energies, 2023 The National Renewable Energy Laboratory manufactured, instrumented, and deployed thermoplastic composite blades and a data acquisition system (NDAQ) on one of Verdant Power’s Gen5d 5 m diameter tidal turbines in New York’s East River.
Robynne E. Murray +6 more
doaj +1 more source
Analysis of tidal turbine blade loading due to blade scale flow
Journal of Fluids and Structures, 2022 A blade element model is developed to include unsteady lift and drag coefficients and it is shown that this provides improved prediction of the spectrum of root bending moment of a tidal turbine blade for two definitions of onset turbulence. Computational Fluid Dynamics (CFD) is used to model the lift and drag forces on a 2D aerofoil using the relative
H. Mullings, T. Stallard
openaire +2 more sources