Analytical and Experimental Aeroelastic Wing Flutter Analysis and Suppression-Reference-Cited by-同舟云学术

Analytical and Experimental Aeroelastic Wing Flutter Analysis and Suppression

Published:2015-06-17 Issue:06 Volume:15 Page:1450084
ISSN:0219-4554
Container-title:International Journal of Structural Stability and Dynamics
language:en
Short-container-title:Int. J. Str. Stab. Dyn.

Author:

Alsaif Khalid A.¹,Foda Mosaad A.²³,Fellouah Hachimi⁴

Affiliation:

1. Mechanical Engineering Department, King Saud University & King Abdulaziz City for Science and Technology, Riyadh 11421, Saudi Arabia

2. Mechanical Engineering Department, King Saud University, Riyadh 11421, Saudi Arabia

3. Department of Production Engineering and Mechanical Design, Mansoura University, Mansoura, Egypt

4. Mechanical Engineering Department, Université de Sherbrooke, 2500 boul., Université, (QC) J1K 2R1, Canada

Abstract

Aeroelastic response and control of airfoil-flap wing exposed to unsteady aerodynamic loads is addressed. The aim is to suppress flutter and to maintain stability of the system. The analytical aerodynamic model is featuring plunging–pitching–flapping coupled motion. Both linear and nonlinear models are developed. Linear quadratic regulator theory is used to design a full state feedback controller in state-space. The control law is implemented through the flap torque to suppress flutter instability and enhance the aeroelastic response. The system response is investigated when it is flying beyond the flutter speed and the control is delayed by a few seconds. The effects of aircraft propeller excitation and the variation of the aspect ratio on the intitiation of flutter are investigated. Numerical simulations are complemented by experimental measurements in a wind tunnel for NACA0012 airfoil.

Publisher

World Scientific Pub Co Pte Lt

Subject

Applied Mathematics,Mechanical Engineering,Ocean Engineering,Aerospace Engineering,Building and Construction,Civil and Structural Engineering

Link

https://www.worldscientific.com/doi/pdf/10.1142/S0219455414500849

Reference31 articles.

1. A modern course in aeroelasticity

2. Wing flutter suppression enhancement using a well-suited active control model

3. Sliding mode robust control of supersonic three degrees-of-freedom airfoils

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