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A Review of Flow Control for Gust Load Alleviation [PDF]

open access: yesApplied Sciences, 2022
Effective control of aerodynamic loads, such as maneuvering load and gust load, allows for reduced structural weight and therefore greater aerodynamic efficiency.
Yonghong Li, Ning Qin
doaj   +6 more sources

A Comprehensive Robust Adaptive Controller for Gust Load Alleviation [PDF]

open access: yesThe Scientific World Journal, 2014
The objective of this paper is the implementation and validation of an adaptive controller for aircraft gust load alleviation. The contribution of this paper is the design of a robust controller that guarantees the reduction of the gust loads, even when ...
Elisa Capello   +2 more
doaj   +5 more sources

Gust load alleviation by normal microjet [PDF]

open access: yesAerospace Science and Technology, 2021
This paper presents an investigation on the capability of gust load alleviation by normal microjet. The numerical method integrates the unsteady Reynolds averaged Navier-Stokes (URANS) solutions, structural dynamic equations of motion and the Field Velocity Method. The method is verified for gust responses of rigid and elastic models.
Ning Qin
exaly   +4 more sources

Potential Estimation of Load Alleviation and Future Technologies in Reducing Aircraft Structural Mass [PDF]

open access: yesAerospace, 2022
In recent years, load alleviation technologies have been more widely used in transport aircraft. For aircraft already in service, load alleviation can contribute in extending the fatigue life, or enable small configurational changes.
Vega Handojo   +4 more
doaj   +4 more sources

Gust Load Alleviation Control Strategies for Large Civil Aircraft through Wing Camber Technology

open access: yesActuators
This paper introduces three new gust load alleviation control strategies, which are based on variable camber technology, to achieve the design requirements for the safety, economy, and comfort of modern civil aircraft.
Shanshan Zhang   +4 more
doaj   +4 more sources

Modeling viral shedding and symptom outcomes in oseltamivir-treated experimental influenza infection. [PDF]

open access: yesPLoS ONE
Influenza remains a global public health concern, and although the antiviral drug oseltamivir is widely used to treat infections, questions regarding its actual antiviral efficacy and clinical benefits remain.
Yasuhisa Fujita   +5 more
doaj   +2 more sources

Efficacy and safety of 3CL protease inhibitors in patients with mild or moderate COVID-19: a systematic review and meta-analysis of randomized controlled trials [PDF]

open access: yesVirology Journal
Background Remdesivir has been established as a safe treatment for patients with COVID-19. However, given the SARS-CoV-2 random mutations, 3CL protease inhibitors have been studied in recent randomized controlled trials.
Nicole Jean Lee   +6 more
doaj   +2 more sources

Incremental Nonlinear Control for Aeroelastic Wing Load Alleviation and Flutter Suppression

open access: yesActuators, 2023
This paper proposes an incremental nonlinear control method for an aeroelastic system’s gust load alleviation and active flutter suppression. These two control objectives can be achieved without modifying the control architecture or the control ...
Roderick Schildkamp   +4 more
doaj   +3 more sources

Numerical study on transonic shock oscillation suppression and buffet load alleviation for a supercritical airfoil using a microtab

open access: yesEngineering Applications of Computational Fluid Mechanics, 2016
The effect of microtabs on shock oscillation suppression and buffet load alleviation for the National Aeronautics and Space Administration (NASA) SC(2)-0714 supercritical airfoil is studied.
Jinli Liu, Zhichun Yang
doaj   +2 more sources

Performance of Microtabs and Trailing Edge Flaps in Wind Turbine Power Regulation: A Numerical Analysis Using WTSim [PDF]

open access: yesJournal of Renewable Energy and Environment, 2022
The effectiveness of trailing-edge flaps and microtabs in damping 1P-3P loads has been proven through a series of research work during the past decade. This paper presents the results of an investigation into the effectiveness of these devices in power ...
Alireza Maheri   +2 more
doaj   +1 more source

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