Controlled modal energy transfer in torsional systems using impulsive parametric excitation

Thomas Pumhössel, Horst Ecker, Peter Hehenberger, Klaus Zeman

Research output: Chapter in Book/Report/Conference proceedingsConference contributionpeer-review

Abstract

In this contribution, the effect of impulsive parametric excitation to the modal energy content of torsional systems is investigated. First, it is shown analytically that impulsive parametric excitation allows to transfer vibration energy between sets of modes of vibration. Transferring vibration energy from lower to higher modes allows to utilize the damping properties inherent in a mechanical structure much more effectively. This leads to a faster decrease of the overall energy content, and hence, of the vibrations of a mechanical system, compared to the case where no impulsive parametric excitation is present, as it is demonstrated with some numerical investigations.

Original languageEnglish
Title of host publicationProceedings of the 9th IFToMM International Conference on Rotor Dynamics
EditorsPaolo Pennacchi
PublisherKluwer Academic Publishers
Pages1775-1784
Number of pages10
ISBN (Electronic)9783319065892
DOIs
Publication statusPublished - 2015
Event9th IFToMM International Conference on Rotor Dynamics, 2014 - Milan, Italy
Duration: 22 Sep 201425 Sep 2014

Publication series

NameMechanisms and Machine Science
Volume21
ISSN (Print)2211-0984
ISSN (Electronic)2211-0992

Conference

Conference9th IFToMM International Conference on Rotor Dynamics, 2014
CountryItaly
CityMilan
Period22.09.201425.09.2014

Keywords

  • Energy transfer
  • Impulsive parametric excitation
  • Torsional vibrations
  • Vibration control

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