Reduced-order aerodynamic model and its application to a nonlinear aeroelastic system


Journal Article

Starting from a finite state model for a two-dimensional aerodynamic flow over an airfoil, the eigenmodes of the aerodynamic flow are determined. Using a small number of these aerodynamic eigenmodes, i.e., a reduced-order model, the aeroelastic model is formed by coupling them to a typical section structural model with a trailing-edge flap. A free-play nonlinearity is modeled. Results are shown from the finite state model, the reduced-order model, and previous theoretical and experimental work. All results are in good agreement.

Full Text

Duke Authors

Cited Authors

  • Tang, D; Conner, MD; Dowell, EH

Published Date

  • January 1, 1998

Published In

Volume / Issue

  • 35 / 2

Start / End Page

  • 332 - 338

International Standard Serial Number (ISSN)

  • 0021-8669

Digital Object Identifier (DOI)

  • 10.2514/2.2304

Citation Source

  • Scopus