Reduction of vortex-induced vibrations of a cantilevered hydrofoil with passive piezoelectric shunt - L2EP
Conference Papers Year : 2024

Reduction of vortex-induced vibrations of a cantilevered hydrofoil with passive piezoelectric shunt

Abstract

This work first investigates the ability of a low order fluid-structure model to fit the vortex-induced vibrations (VIV) observed on a truncated hydrofoil in a hydrodynamic tunnel. A particular VIV area is scrutinized, for which a hydrodynamic excitation mechanism due to a Kármán-type vortex wake organization successively locks the first torsional and second bending mode of the cantilevered hydrofoil. Coupling two structure oscillators with a Van der Pol wake oscillator satisfactorily reproduces the amplitude response and the lock-in frequency. In order to build a low order model allowing to optimize control strategy, a fourth degree of freedom corresponding to the electric circuit of a resonant piezoelectric shunt has been added. Composed of an inductance and a resistance connected to a piezoelectric patch, the passive shunt was tuned to minimize the vibration amplitude in the frequency lock-in range. Model predictions are finally compared with experimental results.
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Dates and versions

hal-04696860 , version 1 (13-09-2024)

Identifiers

  • HAL Id : hal-04696860 , version 1

Cite

Arthur Haudeville, Xavier Amandolese, Boris Lossouarn, Christophe Giraud-Audine, Olivier Thomas. Reduction of vortex-induced vibrations of a cantilevered hydrofoil with passive piezoelectric shunt. Internoise 2024, Aug 2024, Nantes (France), France. pp.ID 2693. ⟨hal-04696860⟩
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