Skip to main content
Journal cover image

Power extraction from aeroelastic limit cycle oscillations

Publication ,  Journal Article
Dunnmon, JA; Stanton, SC; Mann, BP; Dowell, EH
Published in: Journal of Fluids and Structures
November 1, 2011

Nonlinear limit cycle oscillations of an aeroelastic energy harvester are exploited for enhanced piezoelectric power generation from aerodynamic flows. Specifically, a flexible beam with piezoelectric laminates is excited by a uniform axial flow field in a manner analogous to a flapping flag such that the system delivers power to an electrical impedance load. Fluid-structure interaction is modeled by augmenting a system of nonlinear equations for an electroelastic beam with a discretized vortex-lattice potential flow model. Experimental results from a prototype aeroelastic energy harvester are also presented. Root mean square electrical power on the order of 2.5. mW was delivered below the flutter boundary of the test apparatus at a comparatively low wind speed of 27. m/s and a chord normalized limit cycle amplitude of 0.33. Moreover, subcritical limit cycles with chord normalized amplitudes of up to 0.46 were observed. Calculations indicate that the system tested here was able to access over 17% of the flow energy to which it was exposed. Methods for designing aeroelastic energy harvesters by exploiting nonlinear aeroelastic phenomena and potential improvements to existing relevant aerodynamic models are also discussed. © 2011 Elsevier Ltd.

Duke Scholars

Altmetric Attention Stats
Dimensions Citation Stats

Published In

Journal of Fluids and Structures

DOI

EISSN

1095-8622

ISSN

0889-9746

Publication Date

November 1, 2011

Volume

27

Issue

8

Start / End Page

1182 / 1198

Related Subject Headings

  • Fluids & Plasmas
  • 40 Engineering
  • 09 Engineering
 

Citation

APA
Chicago
ICMJE
MLA
NLM
Dunnmon, J. A., Stanton, S. C., Mann, B. P., & Dowell, E. H. (2011). Power extraction from aeroelastic limit cycle oscillations. Journal of Fluids and Structures, 27(8), 1182–1198. https://doi.org/10.1016/j.jfluidstructs.2011.02.003
Dunnmon, J. A., S. C. Stanton, B. P. Mann, and E. H. Dowell. “Power extraction from aeroelastic limit cycle oscillations.” Journal of Fluids and Structures 27, no. 8 (November 1, 2011): 1182–98. https://doi.org/10.1016/j.jfluidstructs.2011.02.003.
Dunnmon JA, Stanton SC, Mann BP, Dowell EH. Power extraction from aeroelastic limit cycle oscillations. Journal of Fluids and Structures. 2011 Nov 1;27(8):1182–98.
Dunnmon, J. A., et al. “Power extraction from aeroelastic limit cycle oscillations.” Journal of Fluids and Structures, vol. 27, no. 8, Nov. 2011, pp. 1182–98. Scopus, doi:10.1016/j.jfluidstructs.2011.02.003.
Dunnmon JA, Stanton SC, Mann BP, Dowell EH. Power extraction from aeroelastic limit cycle oscillations. Journal of Fluids and Structures. 2011 Nov 1;27(8):1182–1198.
Journal cover image

Published In

Journal of Fluids and Structures

DOI

EISSN

1095-8622

ISSN

0889-9746

Publication Date

November 1, 2011

Volume

27

Issue

8

Start / End Page

1182 / 1198

Related Subject Headings

  • Fluids & Plasmas
  • 40 Engineering
  • 09 Engineering