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Hydrofoil vibration and noise reduction with leading edge isolation

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    A technique for reducing the vibration and noise from hydrofoils experiencing unsteady hydrodynamic loads was demonstrated experimentally. Such unsteady loads are generated when hydrofoils interact with approach-flow disturbances and are concentrated in the vicinity of the leading edge. A single stage vibration isolation mount was incorporated into a hydrofoil at its 20% chord location to inhibit the unsteady loads generated near its leading edge from being transmitted to the remainder of the foil and any structures coupled to it. The hydrofoil was tested in a water tunnel facility with a wake generator placed upstream to produce the approach-flow disturbances. The reduction in the unsteady loading on the portion of the hydrofoil isolated from the leading edge was inferred from vibration measurements; 5 to 10 dB reductions were demonstrated.

    Original languageEnglish (US)
    Title of host publication19th National Conference on Noise Control Engineering 2005, Noise-Con 05
    Pages623-629
    Number of pages7
    StatePublished - 2005
    Event19th National Conference on Noise Control Engineering 2005, Noise-Con 2005 - Minneapolis, MN, United States
    Duration: Oct 15 2005Oct 17 2005

    Publication series

    Name19th National Conference on Noise Control Engineering 2005, Noise-Con 05
    Volume1

    Other

    Other19th National Conference on Noise Control Engineering 2005, Noise-Con 2005
    Country/TerritoryUnited States
    CityMinneapolis, MN
    Period10/15/0510/17/05

    All Science Journal Classification (ASJC) codes

    • Acoustics and Ultrasonics

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