Results 21 to 30 of about 3,387,018 (354)

Assessing the rotor blade deformation and tower–blade tip clearance of a 3.4 MW wind turbine with terrestrial laser scanning [PDF]

Wind Energy Science, 2023
Wind turbines have grown in size in recent years, making efficient structural health monitoring of all of their structures even more important. Wind turbine blades deform elastically under the loads applied to them by wind and inertial forces acting on ...
P. Helming, A. Intemann, K.-P. Webersinke, A. von Freyberg, M. Sorg, A. Fischer, A. Fischer   +6 more
doaj   +1 more source

Is the Blade Element Momentum theory overestimating wind turbine loads? – An aeroelastic comparison between OpenFAST's AeroDyn and QBlade's Lifting-Line Free Vortex Wake method

, 2020
. Load calculations play a key role in determining the design loads of different wind turbine components. To obtain the aerodynamic loads for these calculations, the industry relies heavily on the Blade Element Momentum (BEM) theory.
S. Pérez-Becker, F. Papi, J. Saverin, D. Marten, A. Bianchini, C. Paschereit   +5 more
semanticscholar   +1 more source

DETERMINATION OF LOADS IN THE ULTRALIGHT HELICOPTER BLADES

Aviation, 2023
The article describes research that was carried out on coaxial a single-seat ultralight helicopter Rotorschmiede VA-115 which is manufactured by German firm RS Helikopter GmbH. The purpose of the work was to determine the blades’ loads necessary for further blade fatigue analysis and ground bench tests.
openaire   +3 more sources

Tiltrotor CFD part I: validation [PDF]

, 2017
This paper presents performance analyses of the model-scale ERICA and TILTAERO tiltrotors and of the full-scale XV-15 rotor with high-fidelity computational fluids dynamics.
Barakos, George N., Gates, S., Jimenez Garcia, Antonio   +2 more
core   +1 more source

Further Study on the Effects of Wind Turbine Yaw Operation for Aiding Active Wake Management

Applied Sciences, 2020
Active wake management (AWM) via yaw control has been discussed in recent years as a potential way to improve the power production of a wind farm. In such a technique, the wind turbines will be required to work frequently at misaligned yaw angles in ...
Juchuan Dai, Xin Yang, Wenxian Yang, Guoqiang Gao, Mimi Li   +4 more
doaj   +1 more source

Loads Transfer Principles of a Four-Bladed Scissors Rotor [PDF]

Journal of Aircraft, 2022
No abstract available.
Han, Dong, Barakos, George N.
openaire   +1 more source

Numerical Investigation of the Aeroelastic Behavior of a Wind Turbine with Iced Blades

Energies, 2019
Wind turbines installed in cold-climate regions are prone to the risks of ice accumulation which affects their aeroelastic behavior. The studies carried out on this topic so far considered icing in a few sections of the blade, mostly located in the outer
Sudhakar Gantasala, Narges Tabatabaei, Michel Cervantes, Jan-Olov Aidanpää   +3 more
doaj   +1 more source

Constrained power reference control for wind turbines

Wind Energy, 2022
The cost of wind energy can be reduced by controlling the power reference of a turbine to increase energy capture, while maintaining load and generator speed constraints.
Daniel S. Zalkind, Marco M. Nicotra, Lucy Y. Pao   +2 more
doaj   +1 more source

A Comprehensive Investigation of Linear and Nonlinear Beam Models on Flexible Wind Turbine Blade Load Calculations

Journal of Marine Science and Engineering
This study was performed to investigate the effects of structural nonlinearity and large deformations on the aeroelastic loads of flexible wind turbine blades.
Xinwen Ma, Xianghua Peng, Jingwei Sun, Yan Chen, Zhihong Huang   +4 more
doaj   +1 more source

On the robustness of a blade-load-based wind speed estimator to dynamic pitch control strategies [PDF]

Wind Energy Science
In the context of wind turbine pitch control for load alleviation or active wake mixing, it is relevant to provide the time- and space-varying wind conditions as an input to the controller.
M. Coquelet, M. Coquelet, M. Coquelet, M. Lejeune, L. Bricteux, A. A. W. van Vondelen, J.-W. van Wingerden, P. Chatelain   +7 more
doaj   +1 more source