Results 11 to 20 of about 12,622 (296)
Passive load alleviation bi-stable morphing concept
AIP Advances, 2012 In wind turbines, large loads caused by fluid structure interaction leading to fatigue failure and added robustness to withstand high bending stresses on the root of blades constitute important design bottlenecks.
A. F. Arrieta +3 more
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Airfoil gust load alleviation by circulation control [PDF]
Aerospace Science and Technology, 2020 This paper presents a numerical investigation on the gust load alleviation effects based on circulation control (CC) via blowing over airfoil trailing-edge Coanda surface. The NACA0012 airfoil was chosen for the study from subsonic to transonic speeds. The field velocity method is introduced to the unsteady Reynolds averaged Navier-Stokes solutions to ...
Li, Y., Qin, N.
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Robust Turbulence Load Alleviation
, 2011 QC ...
Jansson, Natascha, Eller, David
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Experimental Validation and Evaluation of a Coupled Twist-Camber Morphing Wing Concept
Applied Sciences, 2021 A morphing wing concept allowing for coupled twist-camber shape adaptation is proposed. The design is based on an optimized thickness distribution both spanwise and chordwise to be able to morph the wing sections into targeted airfoil shapes ...
José Lobo do Vale +2 more
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Application of Aeroelastic Tailoring for Load Alleviation on a Flying Demonstrator Wing
Aerospace, 2022 This article presents the application of aeroelastic tailoring in the design of wings for a flying demonstrator, as well as the validation of the design methodology with flight test results.
Wolf R. Krüger +4 more
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Aerospace, 2022 A physics-based optimisation framework is developed to investigate the potential advantages of novel technologies on the energy efficiency of a midrange passenger aircraft.
Valerio Mosca, Ali Elham
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Review of Flow-Control Devices for Wind-Turbine Performance Enhancement
Energies, 2021 It is projected that, in the following years, the wind-energy industry will maintain its rapid growth over the last few decades. Such growth in the industry has been accompanied by the desirability and demand for larger wind turbines aimed at harnessing ...
Md Zishan Akhter, Farag Khalifa Omar
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A reinforcement‐learning approach for individual pitch control
Wind Energy, 2022 Individual pitch control has shown great capability of alleviating the oscillating loads experienced by wind turbine blades due to wind shear, atmospheric turbulence, yaw misalignment, or wake impingement.
Marion Coquelet +3 more
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Adaptive Feedforward Control for Gust Loads Alleviation [PDF]
AIAA Atmospheric Flight Mechanics Conference and Exhibit, 2008 In this paper, an adaptive feedforward control framework is proposed for the suppression of aircraft structural vibrations induced by gust perturbations to increase the resilience of the !ight control law in the presence of the aeroelastic/aeroservoelastic interactions. Currently, aircraft with nonadaptive control laws usually include roll-off or notch
Jie Zeng +3 more
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Lidar‐based feedforward control design methodology for tower load alleviation in wind turbines
Wind Energy, 2022 Summary Minimising tower loads is a key issue for the optimal operation and cost‐effective design of wind turbines. Light detection and ranging (LIDAR) technologies enable the measurement of free wind ahead of the rotor and the addition of new ...
Irene Miquelez‐Madariaga +3 more
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