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Gust response for flexibly suspended high-aspect ratio wings

Publication ,  Journal Article
Tang, D; Grasch, A; Dowell, EH
Published in: AIAA Journal
October 1, 2010

A theoretical aeroelastic study for a flexibly suspended high-aspect ratio wing aeroelastic model excited by gust loads is presented along with a companion wind-tunnel test. A flexible support system at the wing root has been constructed to simulate a rigid body mode. Structural equations of motion based on a nonlinear beam theory are combined with the ONERA aerodynamic model. Also, a dynamic perturbation analysis about a nonlinear static equilibrium is used to determine the small perturbation flutter boundary and structural natural frequencies. The effects of the flexible support system (bi-beam system) on the wing structural dynamics, the static aeroelastic displacement at root, nonlinear flutter, and gust response to a harmonic or a frequency sweep excitation are discussed. Also the effect of gust distribution along the span on the response is described based upon computations. The fair to good quantitative agreement between theory and experiment demonstrates that the present analysis method has reasonable accuracy.

Duke Scholars

Published In

AIAA Journal

DOI

ISSN

0001-1452

Publication Date

October 1, 2010

Volume

48

Issue

10

Start / End Page

2430 / 2444

Related Subject Headings

  • Aerospace & Aeronautics
  • 4012 Fluid mechanics and thermal engineering
  • 4001 Aerospace engineering
  • 0913 Mechanical Engineering
  • 0905 Civil Engineering
  • 0901 Aerospace Engineering
 

Citation

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ICMJE
MLA
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Tang, D., Grasch, A., & Dowell, E. H. (2010). Gust response for flexibly suspended high-aspect ratio wings. AIAA Journal, 48(10), 2430–2444. https://doi.org/10.2514/1.J050309
Tang, D., A. Grasch, and E. H. Dowell. “Gust response for flexibly suspended high-aspect ratio wings.” AIAA Journal 48, no. 10 (October 1, 2010): 2430–44. https://doi.org/10.2514/1.J050309.
Tang D, Grasch A, Dowell EH. Gust response for flexibly suspended high-aspect ratio wings. AIAA Journal. 2010 Oct 1;48(10):2430–44.
Tang, D., et al. “Gust response for flexibly suspended high-aspect ratio wings.” AIAA Journal, vol. 48, no. 10, Oct. 2010, pp. 2430–44. Scopus, doi:10.2514/1.J050309.
Tang D, Grasch A, Dowell EH. Gust response for flexibly suspended high-aspect ratio wings. AIAA Journal. 2010 Oct 1;48(10):2430–2444.
Journal cover image

Published In

AIAA Journal

DOI

ISSN

0001-1452

Publication Date

October 1, 2010

Volume

48

Issue

10

Start / End Page

2430 / 2444

Related Subject Headings

  • Aerospace & Aeronautics
  • 4012 Fluid mechanics and thermal engineering
  • 4001 Aerospace engineering
  • 0913 Mechanical Engineering
  • 0905 Civil Engineering
  • 0901 Aerospace Engineering