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Active vibration damping using a reactive, self-sensing, electrodynamic actuator

Active vibration damping using a reactive, self-sensing, electrodynamic actuator
Active vibration damping using a reactive, self-sensing, electrodynamic actuator
Self-sensing active vibration damping is advantageous if external sensors cannot be collocated with the actuators or these sensors add too much weight or cost. When self-sensing, electrodynamic actuators are used damping is directly added to an attached structure without the need of potentially destabilizing electronic integrators or differentiators. In this paper self-sensing control with a shunted resistor, positive current feedback and induced voltage feedback are investigated in simulations and experiments. Experiments with a commercial shaker on a clamped plate show that its vibration attenuation is increased from 5 to 15 dB and the control bandwidth is more than doubled when the appropriate control scheme is used.
0964-1726
1-10
Paulitsch, C.
c3cda0d2-374b-4e8f-ba38-87ef9b849532
Gardonio, P.
bae5bf72-ea81-43a6-a756-d7153d2de77a
Elliott, S.J.
721dc55c-8c3e-4895-b9c4-82f62abd3567
Paulitsch, C.
c3cda0d2-374b-4e8f-ba38-87ef9b849532
Gardonio, P.
bae5bf72-ea81-43a6-a756-d7153d2de77a
Elliott, S.J.
721dc55c-8c3e-4895-b9c4-82f62abd3567

Paulitsch, C., Gardonio, P. and Elliott, S.J. (2006) Active vibration damping using a reactive, self-sensing, electrodynamic actuator. Smart Materials and Structures, 15 (1), 1-10. (doi:10.1088/0964-1726/15/2/033).

Record type: Article

Abstract

Self-sensing active vibration damping is advantageous if external sensors cannot be collocated with the actuators or these sensors add too much weight or cost. When self-sensing, electrodynamic actuators are used damping is directly added to an attached structure without the need of potentially destabilizing electronic integrators or differentiators. In this paper self-sensing control with a shunted resistor, positive current feedback and induced voltage feedback are investigated in simulations and experiments. Experiments with a commercial shaker on a clamped plate show that its vibration attenuation is increased from 5 to 15 dB and the control bandwidth is more than doubled when the appropriate control scheme is used.

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Published date: 2006

Identifiers

Local EPrints ID: 43476
URI: https://eprints.soton.ac.uk/id/eprint/43476
ISSN: 0964-1726
PURE UUID: 82716319-442e-45d1-81e4-3500f116e36b

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Date deposited: 25 Jan 2007
Last modified: 13 Mar 2019 21:09

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Contributors

Author: C. Paulitsch
Author: P. Gardonio
Author: S.J. Elliott

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