Enhanced vibration decay in high-Q resonators by confined of parametric excitation

Miguel Ramírez-Barrios, Fadi Dohnal, Joaquín Collado

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

High-Q micromechanical resonators have been studied intensively because of the tunable performance and the associated potential applications. Nevertheless, some designs experience long relaxation times which hinder fast switching applications. We investigate an open-loop control, an intentional and confined time-periodic variation, that is capable of reducing the transient time allowing rapid switching times. The physical phenomenon is described in detail and analysed using a singular perturbation technique. Analytical conditions are developed for designing future experimentation. The control is proven numerically for an exemplary micromechanical resonator.

Original languageEnglish
Pages (from-to)1673-1684
Number of pages12
JournalArchive of Applied Mechanics
Volume90
Issue number8
DOIs
StatePublished - 1 Aug 2020
Externally publishedYes

Keywords

  • MEMS
  • Parametric excitation
  • Vibrational control

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