Application of voice coil motors in active dynamic vibration absorbers

Yi De Chen, Chyun Chau Fuh, Pi Cheng Tung

Research output: Contribution to journalArticlepeer-review

115 Scopus citations

Abstract

A dynamic vibration absorber reduces the influence of a force whose excitation frequency nearly coincides with the natural frequency of a rotating machine. However, the performance of this type of passive absorber can be affected by changes in the environment. In this paper, we describe a voice coil motor (VCM) that can serve as the actuator in an active dynamic vibration absorber which can be regulated for different conditions. With a VCM, suitable controllers can be designed for periodic excitation force rejection by using the characteristics of the notch filter in combination with the root-locus theorem. We have evaluated the performance of the active vibration absorber by both simulations and experiments.

Original languageEnglish
Pages (from-to)1149-1154
Number of pages6
JournalIEEE Transactions on Magnetics
Volume41
Issue number3
DOIs
StatePublished - Mar 2005

Keywords

  • Active vibration absorber
  • Notch filter
  • Root-locus theorem
  • Voice coil motors

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