The University of Southampton
University of Southampton Institutional Repository

Destabilization of velocity feedback controllers with stroke limited inertial actuators

Destabilization of velocity feedback controllers with stroke limited inertial actuators
Destabilization of velocity feedback controllers with stroke limited inertial actuators
It has been observed when using inertial actuators for the active reduction of structural vibration, that velocity feedback controllers are liable to become unstable if the actuator is subject to stroke saturation. This article presents a simple nonlinear, time domain model of an inertial actuator mounted on a single degree of freedom system. At low amplitudes the actuator, when used in a velocity feedback control loop, increases the effective damping of the structure. At higher amplitudes the system is shown to become unstable, however, and generates limit cycle oscillations having a predictable frequency.
0001-4966
EL211-EL217
Baumann, Oliver Nicholas
309e4dd7-eb33-4253-9314-a7a2b767537b
Elliott, Stephen John
721dc55c-8c3e-4895-b9c4-82f62abd3567
Baumann, Oliver Nicholas
309e4dd7-eb33-4253-9314-a7a2b767537b
Elliott, Stephen John
721dc55c-8c3e-4895-b9c4-82f62abd3567

Baumann, Oliver Nicholas and Elliott, Stephen John (2007) Destabilization of velocity feedback controllers with stroke limited inertial actuators. Journal of the Acoustical Society of America, 121 (5), EL211-EL217. (doi:10.1121/1.2731018).

Record type: Article

Abstract

It has been observed when using inertial actuators for the active reduction of structural vibration, that velocity feedback controllers are liable to become unstable if the actuator is subject to stroke saturation. This article presents a simple nonlinear, time domain model of an inertial actuator mounted on a single degree of freedom system. At low amplitudes the actuator, when used in a velocity feedback control loop, increases the effective damping of the structure. At higher amplitudes the system is shown to become unstable, however, and generates limit cycle oscillations having a predictable frequency.

Full text not available from this repository.

More information

Published date: May 2007

Identifiers

Local EPrints ID: 46548
URI: https://eprints.soton.ac.uk/id/eprint/46548
ISSN: 0001-4966
PURE UUID: 207227df-658b-46f7-be56-aba82fcc8e05

Catalogue record

Date deposited: 17 Jul 2007
Last modified: 13 Mar 2019 21:02

Export record

Altmetrics

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of https://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×