For Better Performance Please Use Chrome or Firefox Web Browser

M. J. Mashayekhi , A. Sedaghat , and M. Ghayour, LINEAR FLUTTER PREDICTION FOR A CANTILEVER WING MODEL, 14th Annual (International) Mechanical Engineering Conference – May 2006 Isfahan University of Technology, Isfahan, Iran.

14th Annual (International) Mechanical Engineering Conference – May 2006

Isfahan University of Technology, Isfahan, Iran

 

LINEAR Flutter Prediction for a cantilever Wing Model

 

M. J. Mashayekhi[1], A. Sedaghat[2], and M. Ghayour[3]

Department of Mechanical Engineering

Isfahan University of Technology, Isfahan, Iran

E-mail: Sedaghat@cc.iut.ac.ir

 

Abstract

A simple cantilever wing was modeled using the Rayleigh-Ritz approach. Based on the quasi-steady and unsteady strip aerodynamics and the Lagrange equations, the equations are derived for mass, stiffness, and damping matrices of the wing model. Aerodynamics loads were considered in both constant and oscillatory basis and more accurate expressions are introduced for the Theodorsen functions. Flutter behavior of the wing model was analyzed using several combinations of bending and torsion modes. In overall, Flutter occurred at higher values of the wind speeds for the wing modeled with the frequency dependent aerodynamics.     

 

Keywords: Quasi-Steady Aerodynamics – Wing Flutter – Frequency Dependent Aerodynamics.



[1] Undergraduate Student (mohammad_j_m2002@yahoo.com)

[2] Professor Assistant

[3] Professor Assistant (ghayour@cc.iut.ac.ir)

 

Conference Papers
Month/Season: 
May
Year: 
2006