Results 41 to 50 of about 12,622 (296)

Constrained Control for Load Alleviation in Very Flexible Aircraft

open access: yes, 2022
Air travel has had an increasing contribution to global CO2 and non-CO2 emissions, and climate change. Compelled by the need for a greener aviation industry, aircraft designs are evolving toward higher aspect ratio wings to improve aerodynamic ...
De Freitas Virgilio Pereira, Mateus
core   +1 more source

Design and Optimization of an Aeroservoelastic Wind Tunnel Model

open access: yesFluids, 2020
Through the combination of passive and active load alleviation techniques, this paper presents the design, optimization, manufacturing, and update of a flexible composite wind tunnel model.
Johannes K. S. Dillinger   +4 more
doaj   +1 more source

The Effect of a Flexible Blade for Load Alleviation in Wind Turbines

open access: yesEnergies, 2021
This article presents the analysis of the performance of a flexible wind turbine blade. The simulation analysis is based on a 3 m span blade prototype. The blade has a flexible surface and a cam mechanism that modifies the aerodynamic profile and adapts ...
Azael Duran Castillo   +7 more
doaj   +1 more source

Gust and Maneuver Load Alleviation in Conceptual Overall Aircraft Design

open access: yes, 2023
Aerodynamic load alleviation is a promising technology to increase aircraft efficiency and to reduce fuel burn within aircraft design. To fully benefit from the potential, this technology should be considered already during the early design stage when ...
Krengel, Markus Dino, Hepperle, Martin
core   +1 more source

Designing and Maturating Doppler Lidar Sensors for Gust Load Alleviation: Progress Made Since AWIATOR [PDF]

open access: yes, 2020
This paper gives an overview of the work performed by DLR on lidar-based gust load alleviation during the CleanSky and CleanSky 2 programmes. This work is put in relation with the work that was performed in the AWIATOR project, which is still the most ...
Deiler, Christoph   +4 more
core   +1 more source

Active hinged wingtip for gust load alleviation and manoeuvres

open access: yes, 2023
The development of lighter and more efficient transport aircraft has led to an increasedfocus on gust load alleviation. A recent consideration in aircraft design is using hinged wingtip devices to increase the aspect ratio, improving aircraft performance.
Hamed Haddad Khodaparast   +4 more
core   +1 more source

A multi-channel H-infinity preview control approach to load alleviation design for flexible aircraft [PDF]

open access: yes, 2021
Gust load alleviation functions are mainly designed for two objectives: first, alleviating the structural loads resulting from turbulence or gust encounter, and hence reducing the structural fatigue and/or weight; and second, enhancing the ride qualities,
Khalil, Ahmed Khalil Ali   +1 more
core   +1 more source

Basic Maneuver Load Alleviation in Conceptual Aircraft Design [PDF]

open access: yes, 2022
Evaluating load alleviation technologies in conceptual aircraft design requires a cross-disciplinary simulation approach. In particular the design framework has to include a coupled, physics-based consideration of the disciplines aerodynamics, structures
Krengel, Markus
core  

A Comparative Analysis of Active Control vs. Folding Wing Tip Technologies for Gust Load Alleviation

open access: yesApplied Sciences
As part of the Ultra High Aspect Ratio Wing Advanced Research and Designs (U-HARWARD) project, funded by CS2JU, various gust load alleviation (GLA) technologies have been developed and studied.
Francesco Toffol
doaj   +1 more source

On the Aeroelasticity of a Cantilever Wing Equipped with the Spanwise Morphing Trailing Edge Concept

open access: yesAerospace, 2023
This paper studies the aeroelastic behavior of a rectangular, cantilever wing equipped with the spanwise morphing trailing edge (SMTE) concept. The SMTE consists of multiple trailing edge flaps that allow controlling the spanwise camber distribution of a
Jafar S. Pilakkadan   +3 more
doaj   +1 more source

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