Macroscale mechanical domain parametric amplification: superthreshold pumping and optimal excitation parameters
Publication: Research › Paper – Annual report year: 2012
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Macroscale mechanical domain parametric amplification: superthreshold pumping and optimal excitation parameters. / Neumeyer, Stefan; Thomsen, Jon Juel.
2012. Paper presented at EUROMECH Colloquium 532 , Darmstadt, Germany.Publication: Research › Paper – Annual report year: 2012
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TY - CONF
T1 - Macroscale mechanical domain parametric amplification: superthreshold pumping and optimal excitation parameters
A1 - Neumeyer,Stefan
A1 - Thomsen,Jon Juel
AU - Neumeyer,Stefan
AU - Thomsen,Jon Juel
PY - 2012
Y1 - 2012
N2 - This work investigates theoretically and experimentally the phenomenon of parametric amplification in a <br/>macroscale mechanical context, using a base-excited tilted cantilever beam as the model object. It demonstrates <br/>that an optimum mix between selected excitation parameters exists, that parametric amplification is possible <br/>for the second vibration mode, that the detuned case is phase lag insensitive, and that superthreshold pumping <br/>changes the gain/phase lag relationship, the phase lag range for which amplification and attenuation is realized, <br/>the optimum phase lag, and the attainable gain.
AB - This work investigates theoretically and experimentally the phenomenon of parametric amplification in a <br/>macroscale mechanical context, using a base-excited tilted cantilever beam as the model object. It demonstrates <br/>that an optimum mix between selected excitation parameters exists, that parametric amplification is possible <br/>for the second vibration mode, that the detuned case is phase lag insensitive, and that superthreshold pumping <br/>changes the gain/phase lag relationship, the phase lag range for which amplification and attenuation is realized, <br/>the optimum phase lag, and the attainable gain.
ER -