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Active damping control unit using a small scale proof mass electrodynamic actuator

Active damping control unit using a small scale proof mass electrodynamic actuator
Active damping control unit using a small scale proof mass electrodynamic actuator
This paper presents a study on the design and use of a small scale proof mass electrodynamic actuator, with a low mounting resonance frequency, for velocity feedback control on a thin rectangular panel. A stability-performance formula is derived, which can be effectively used to assess the down scaling effects on the stability and control performance of the feedback loop. The design and tests of a velocity feedback loop with a prototype small scale proof mass actuator are also presented. When a feedback control having a gain margin of about 6 dB is implemented, so that there is little control spillover effect around the fundamental resonance of the actuator, reductions of vibration between 5 dB and 10 dB in the frequency band between 80 Hz and 250 Hz have been measured at the control position.
0001-4966
886-897
González Díaz, Cristóbal
31016a72-573a-4969-a3ab-4052fd9daa8e
Paulitsch, Christoph
7ac64382-416f-437c-b17c-e39aa07c96b8
Gardonio, Paolo
bae5bf72-ea81-43a6-a756-d7153d2de77a
González Díaz, Cristóbal
31016a72-573a-4969-a3ab-4052fd9daa8e
Paulitsch, Christoph
7ac64382-416f-437c-b17c-e39aa07c96b8
Gardonio, Paolo
bae5bf72-ea81-43a6-a756-d7153d2de77a

González Díaz, Cristóbal, Paulitsch, Christoph and Gardonio, Paolo (2008) Active damping control unit using a small scale proof mass electrodynamic actuator. Journal of the Acoustical Society of America, 124 (2), 886-897. (doi:10.1121/1.2945167).

Record type: Article

Abstract

This paper presents a study on the design and use of a small scale proof mass electrodynamic actuator, with a low mounting resonance frequency, for velocity feedback control on a thin rectangular panel. A stability-performance formula is derived, which can be effectively used to assess the down scaling effects on the stability and control performance of the feedback loop. The design and tests of a velocity feedback loop with a prototype small scale proof mass actuator are also presented. When a feedback control having a gain margin of about 6 dB is implemented, so that there is little control spillover effect around the fundamental resonance of the actuator, reductions of vibration between 5 dB and 10 dB in the frequency band between 80 Hz and 250 Hz have been measured at the control position.

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More information

Published date: August 2008

Identifiers

Local EPrints ID: 65221
URI: http://eprints.soton.ac.uk/id/eprint/65221
ISSN: 0001-4966
PURE UUID: ef628615-8d7c-4d09-b953-a5fb76241b5b

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Date deposited: 05 Feb 2009
Last modified: 15 Mar 2024 12:06

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Contributors

Author: Cristóbal González Díaz
Author: Christoph Paulitsch
Author: Paolo Gardonio

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