Skip to main content
Journal cover image

Resonant frequency determination of a multistore high-altitude/long- endurance wing

Publication ,  Journal Article
Grasch, AD; Jaworski, JW; Tang, D; Dowell, EH
Published in: AIAA Journal
June 1, 2013

It is desirable to predict the resonant frequencies and mode shapes of extremely high-aspect ratio wings for highaltitude/long-endurance applications. Such results give insight into structural response and serve as a precursor to flutter and gust response calculations. The influence of rigid body modes has been shown to be significant for the aeroelastic response of these aircraft, but this effect is frequently not captured in a laboratory setting. Additionally, resonant frequencies can be difficult to predict when multiple discrete masses such as engines or mission pods are distributed along the span. In this work, the resonant frequencies of a high-altitude/long-endurance wing mounted on a spring of variable stiffness with both root and tip stores are determined analytically from classical beam theory. The model is then extended through a component-mode synthesis to incorporate multiple spanwise masses of any discrete distribution. Computational results are compared with an experiment, and good agreement is shown.

Duke Scholars

Published In

AIAA Journal

DOI

ISSN

0001-1452

Publication Date

June 1, 2013

Volume

51

Issue

6

Start / End Page

1277 / 1283

Related Subject Headings

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

Citation

APA
Chicago
ICMJE
MLA
NLM
Grasch, A. D., Jaworski, J. W., Tang, D., & Dowell, E. H. (2013). Resonant frequency determination of a multistore high-altitude/long- endurance wing. AIAA Journal, 51(6), 1277–1283. https://doi.org/10.2514/1.J051499
Grasch, A. D., J. W. Jaworski, D. Tang, and E. H. Dowell. “Resonant frequency determination of a multistore high-altitude/long- endurance wing.” AIAA Journal 51, no. 6 (June 1, 2013): 1277–83. https://doi.org/10.2514/1.J051499.
Grasch AD, Jaworski JW, Tang D, Dowell EH. Resonant frequency determination of a multistore high-altitude/long- endurance wing. AIAA Journal. 2013 Jun 1;51(6):1277–83.
Grasch, A. D., et al. “Resonant frequency determination of a multistore high-altitude/long- endurance wing.” AIAA Journal, vol. 51, no. 6, June 2013, pp. 1277–83. Scopus, doi:10.2514/1.J051499.
Grasch AD, Jaworski JW, Tang D, Dowell EH. Resonant frequency determination of a multistore high-altitude/long- endurance wing. AIAA Journal. 2013 Jun 1;51(6):1277–1283.
Journal cover image

Published In

AIAA Journal

DOI

ISSN

0001-1452

Publication Date

June 1, 2013

Volume

51

Issue

6

Start / End Page

1277 / 1283

Related Subject Headings

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