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

Stefan Neumeyer, Jon Juel Thomsen

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

96 Downloads (Pure)

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
CountryGermany
CityDarmstadt
Period27/08/201230/08/2012
Internet address

Cite this