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Aeroelastic limit cycles as a small scale energy source

Publication ,  Journal Article
Dunnmon, JA; Stanton, SC; Mann, BP; Dowell, EH
Published in: Proceedings of the ASME Design Engineering Technical Conference
December 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. Copyright © 2011 by ASME.

Duke Scholars

Published In

Proceedings of the ASME Design Engineering Technical Conference

DOI

Publication Date

December 1, 2011

Volume

4

Issue

PARTS A AND B

Start / End Page

1181 / 1190
 

Citation

APA
Chicago
ICMJE
MLA
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Dunnmon, J. A., Stanton, S. C., Mann, B. P., & Dowell, E. H. (2011). Aeroelastic limit cycles as a small scale energy source. Proceedings of the ASME Design Engineering Technical Conference, 4(PARTS A AND B), 1181–1190. https://doi.org/10.1115/DETC2011-47002
Dunnmon, J. A., S. C. Stanton, B. P. Mann, and E. H. Dowell. “Aeroelastic limit cycles as a small scale energy source.” Proceedings of the ASME Design Engineering Technical Conference 4, no. PARTS A AND B (December 1, 2011): 1181–90. https://doi.org/10.1115/DETC2011-47002.
Dunnmon JA, Stanton SC, Mann BP, Dowell EH. Aeroelastic limit cycles as a small scale energy source. Proceedings of the ASME Design Engineering Technical Conference. 2011 Dec 1;4(PARTS A AND B):1181–90.
Dunnmon, J. A., et al. “Aeroelastic limit cycles as a small scale energy source.” Proceedings of the ASME Design Engineering Technical Conference, vol. 4, no. PARTS A AND B, Dec. 2011, pp. 1181–90. Scopus, doi:10.1115/DETC2011-47002.
Dunnmon JA, Stanton SC, Mann BP, Dowell EH. Aeroelastic limit cycles as a small scale energy source. Proceedings of the ASME Design Engineering Technical Conference. 2011 Dec 1;4(PARTS A AND B):1181–1190.

Published In

Proceedings of the ASME Design Engineering Technical Conference

DOI

Publication Date

December 1, 2011

Volume

4

Issue

PARTS A AND B

Start / End Page

1181 / 1190