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

Publication: Research - peer-reviewArticle in proceedings – Annual report year: 2012

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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
StatePublished

Conference

ConferenceEUROMECH Colloquium 532
CountryGermany
CityDarmstadt
Period27/08/1230/08/12
Internet addresshttp://www.sdy.tu-darmstadt.de/euromech532/
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