The University of Southampton
University of Southampton Institutional Repository

Multifunctional design of inertially-actuated velocity feedback controllers

Elliott, S.J., Rohlfing, J. and Gardonio, P. (2012) Multifunctional design of inertially-actuated velocity feedback controllers Journal of the Acoustical Society of America, 131, (2), pp. 1150-1157. (doi:10.1121/1.3672694).

Record type: Article


The vibration of a structure can be controlled using either a passive tuned mass damper or using an active vibration control system. In this paper, the design of a multifunctional system is discussed, which uses an inertial actuator as both a tuned mass damper and as an element in a velocity feedback control loop. The natural frequency of the actuator would normally need to be well below that of the structure under control to give a stable velocity feedback controller, whereas it needs to be close to the natural frequency of a dominant structural resonance to act as an effective tuned mass damper. A compensator is used in the feedback controller here to allow stable feedback operation even when the actuator natural frequency is close to that of a structural mode. A practical example of such a compensator is described for a small inertial actuator, which is then used to actively control the vibrations both on a panel and on a beam. The influence of the actuator as a passive tuned mass damper can be clearly seen before the feedback loop is closed, and broadband damping is then additionally achieved by closing the velocity feedback loop.

Full text not available from this repository.

More information

Published date: February 2012
Keywords: damping, resonance, structural acoustics, vibration control
Organisations: Signal Processing & Control Grp


Local EPrints ID: 336714
ISSN: 0001-4966
PURE UUID: dc53f33b-14ba-4378-9ccd-d1c09afeadaa

Catalogue record

Date deposited: 03 Apr 2012 12:34
Last modified: 18 Jul 2017 06:06

Export record



Author: S.J. Elliott
Author: J. Rohlfing
Author: P. Gardonio

University divisions

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 supports OAI 2.0 with a base URL of

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.