A Family of Resonant Vibration Control Formats

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Abstract

Resonant control makes use of a controller with a resonance frequency and an equivalent damping ratio.
A simple explicit calibration procedure is presented for a family of resonant controllers in which the frequency
is tuned to the natural frequency of the targeted mode in such a way that the two resulting modes exhibit identical
damping ratio. This tuning is independent of the imposed controller damping. The controller damping is then
selected as an optimal compromise between too small damping, and too large damping at which the modal
frequencies coincide, and thereby produce undesirable constructive interference. This ‘equal modal damping’
procedure leads to explicit calibration formulae, and produces a nearly level plateau in the frequency response
curve with lower response than the traditional double-root calibration.
Original languageEnglish
Publication date2012
Number of pages8
Publication statusPublished - 2012
EventEACS 2012: 5th European Conference on Structural Control - Genoa, Italy
Duration: 18 Jun 201220 Jun 2012

Conference

ConferenceEACS 2012
CountryItaly
CityGenoa
Period18/06/201220/06/2012

Keywords

  • Resonant damping
  • Active control
  • Structural vibration

Cite this

Krenk, S., & Høgsberg, J. B. (2012). A Family of Resonant Vibration Control Formats. Paper presented at EACS 2012, Genoa, Italy.