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Limit Cycle Oscillation of Elastic Plate in Supersonic Flow

Publication ,  Journal Article
Freydin, M; Piccolo Serafim, L; Dowell, EH; Varigonda, SV; Narayanaswamy, V
Published in: AIAA Journal
February 1, 2025

Fluid–structure interaction of an elastic plate with piezoelectric elements, turbulent freestream flow at Mach 2.5, and a pressurized cavity is investigated computationally and correlated with a recent experiment. The pressure field on the plate is measured using pressure-sensitive paint, and the structural response is observed using the measured voltage of a piezoelectric patch. The measurements show a dominant frequency of oscillation which indicates the likely onset of flutter and a postflutter limit cycle oscillation (LCO). A computational investigation is conducted to study the effects of static pressure differential, temperature differential, cavity pressure coupling, and plate boundary conditions on the linear flutter onset condition and the nonlinear postflutter LCO characteristics. Rivets that connect the plate to the supporting structure are modeled as local constraint in the in-plane direction, and their effect is investigated. Computations show that the coupling between the cavity acoustic and plate structural modes is necessary for flutter onset in the wind-tunnel conditions. Correlation between computed and measured aerodynamic pressure shows reasonable agreement in amplitude and frequency. Computational results are obtained using Piston Theory and also potential flow aerodynamics. Computed and measured pressure LCO mode shapes are extracted and correlated.

Duke Scholars

Published In

AIAA Journal

DOI

EISSN

1533-385X

ISSN

0001-1452

Publication Date

February 1, 2025

Volume

63

Issue

2

Start / End Page

607 / 620

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
Freydin, M., Piccolo Serafim, L., Dowell, E. H., Varigonda, S. V., & Narayanaswamy, V. (2025). Limit Cycle Oscillation of Elastic Plate in Supersonic Flow. AIAA Journal, 63(2), 607–620. https://doi.org/10.2514/1.J064436
Freydin, M., L. Piccolo Serafim, E. H. Dowell, S. V. Varigonda, and V. Narayanaswamy. “Limit Cycle Oscillation of Elastic Plate in Supersonic Flow.” AIAA Journal 63, no. 2 (February 1, 2025): 607–20. https://doi.org/10.2514/1.J064436.
Freydin M, Piccolo Serafim L, Dowell EH, Varigonda SV, Narayanaswamy V. Limit Cycle Oscillation of Elastic Plate in Supersonic Flow. AIAA Journal. 2025 Feb 1;63(2):607–20.
Freydin, M., et al. “Limit Cycle Oscillation of Elastic Plate in Supersonic Flow.” AIAA Journal, vol. 63, no. 2, Feb. 2025, pp. 607–20. Scopus, doi:10.2514/1.J064436.
Freydin M, Piccolo Serafim L, Dowell EH, Varigonda SV, Narayanaswamy V. Limit Cycle Oscillation of Elastic Plate in Supersonic Flow. AIAA Journal. 2025 Feb 1;63(2):607–620.

Published In

AIAA Journal

DOI

EISSN

1533-385X

ISSN

0001-1452

Publication Date

February 1, 2025

Volume

63

Issue

2

Start / End Page

607 / 620

Related Subject Headings

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