Vibration control by piezoelectric proof-mass absorber with resistive-inductive shunt

Jan Høgsberg*

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

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Abstract

Vibration control of structures is introduced by a piezoelectric proof-mass absorber with a resistive-inductive shunt, introducing the structural mass, absorber mass and voltage across the shunt as the three degrees of freedom. The system poles follow semi-circular paths in the complex plane, whereby equal damping is secured by inverse point conditions for the undamped roots associated with vanishing and infinite resistance. The remaining parameters are calibrated relative to a reference solution with a triple-root bifurcation point. Design procedures are presented for parallel and series shunts, demonstrating a flat plateau in the amplitude curves for sufficiently separated root loci without bifurcation points.

Original languageEnglish
JournalMechanics of Advanced Materials and Structures
ISSN1537-6494
DOIs
Publication statusAccepted/In press - 2020

Keywords

  • Piezoelectric shunt damping
  • Proof-mass absorber
  • RL shunt
  • Structural dynamics
  • Vibration control

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