A scalable concept for micropower generation using flow-induced self-excited oscillations

D. St. Clair, A. Bibo, V. R. Sennakesavababu, Mohammed Daqaq, G. Li

    Research output: Contribution to journalArticle

    Abstract

    Inspired by music-playing harmonicas that create tones via oscillations of reeds when subjected to air blow, this paper entails a concept for microwind power generation using flow-induced self-excited oscillations of a piezoelectric beam embedded within a cavity. Specifically, when the volumetric flow rate of air past the beam exceeds a certain threshold, the energy pumped into the structure via nonlinear pressure forces offsets the system's intrinsic damping setting the beam into self-sustained limit-cycle oscillations. The vibratory energy is then converted into electricity through principles of piezoelectricity. Experimental and theoretical results are presented demonstrating the feasibility of the proposed concept.

    Original languageEnglish (US)
    Article number144103
    JournalApplied Physics Letters
    Volume96
    Issue number14
    DOIs
    StatePublished - Apr 27 2010

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    oscillations
    piezoelectricity
    music
    air
    electricity
    flow velocity
    damping
    cavities
    cycles
    thresholds
    energy

    ASJC Scopus subject areas

    • Physics and Astronomy (miscellaneous)

    Cite this

    St. Clair, D., Bibo, A., Sennakesavababu, V. R., Daqaq, M., & Li, G. (2010). A scalable concept for micropower generation using flow-induced self-excited oscillations. Applied Physics Letters, 96(14), [144103]. https://doi.org/10.1063/1.3385780

    A scalable concept for micropower generation using flow-induced self-excited oscillations. / St. Clair, D.; Bibo, A.; Sennakesavababu, V. R.; Daqaq, Mohammed; Li, G.

    In: Applied Physics Letters, Vol. 96, No. 14, 144103, 27.04.2010.

    Research output: Contribution to journalArticle

    St. Clair, D, Bibo, A, Sennakesavababu, VR, Daqaq, M & Li, G 2010, 'A scalable concept for micropower generation using flow-induced self-excited oscillations', Applied Physics Letters, vol. 96, no. 14, 144103. https://doi.org/10.1063/1.3385780
    St. Clair, D. ; Bibo, A. ; Sennakesavababu, V. R. ; Daqaq, Mohammed ; Li, G. / A scalable concept for micropower generation using flow-induced self-excited oscillations. In: Applied Physics Letters. 2010 ; Vol. 96, No. 14.
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