Resonant Electromagnetic Shunt Damping of Flexible Structures

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Abstract

Electromagnetic transducers convert mechanical energy to electrical energy and vice versa. Effective passive vibration damping of flexible structures can therefore be introduced by shunting with an accurately calibrated resonant electrical network thatcontains a capacitor to create the desired resonance and a resistor to dissipate the correct amount of vibration energy. The modal interaction with residual vibration forms not targeted by the resonant shunt is represented by supplemental flexibility and inertia terms. This leads to modified calibration formulae that maintain the desired damping performance in the case of flexible structures with substantial modal interaction.
Original languageEnglish
Title of host publicationProceedings of the 29th Nordic Seminar on Computational Mechanics (NSCM-29)
EditorsR. Larsson
Publication date2016
Pages4
Publication statusPublished - 2016
Event29th Nordic Seminar on Computational Mechanics - Gothenburg, Sweden
Duration: 26 Oct 201628 Oct 2016

Conference

Conference29th Nordic Seminar on Computational Mechanics
Country/TerritorySweden
CityGothenburg
Period26/10/201628/10/2016

Keywords

  • Structural dynamics
  • Modal analysis
  • Electromagnetic shunt damping

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