Macroscale mechanical domain parametric amplification: superthreshold pumping and optimal excitation parameters

Stefan Neumeyer, Jon Juel Thomsen

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    Abstract

    This work investigates theoretically and experimentally the phenomenon of parametric amplification in a
    macroscale mechanical context, using a base-excited tilted cantilever beam as the model object. It demonstrates
    that an optimum mix between selected excitation parameters exists, that parametric amplification is possible
    for the second vibration mode, that the detuned case is phase lag insensitive, and that superthreshold pumping
    changes the gain/phase lag relationship, the phase lag range for which amplification and attenuation is realized,
    the optimum phase lag, and the attainable gain.
    Original languageEnglish
    Title of host publicationEUROMECH Colloquium 532 : 1st International Colloquium on Time periodic systems (TPS). Current trends in theory and application
    Number of pages4
    PublisherTechnische Universität Darmstadt
    Publication date2012
    Publication statusPublished - 2012
    EventEUROMECH Colloquium 532 : 1st International Colloquium on Time periodic systems (TPS). Current trends in theory and application - Technische Universität Darmstadt, Darmstadt, Germany
    Duration: 27 Aug 201230 Aug 2012
    http://www.sdy.tu-darmstadt.de/euromech532/

    Conference

    ConferenceEUROMECH Colloquium 532
    LocationTechnische Universität Darmstadt
    Country/TerritoryGermany
    CityDarmstadt
    Period27/08/201230/08/2012
    Internet address

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