Optimisation of dynamic vibration absorbers to minimise kinetic energy and maximise internal power dissipation
Optimisation of dynamic vibration absorbers to minimise kinetic energy and maximise internal power dissipation
The tuning of a dynamic vibration absorber is considered such that either the kinetic energy of the host structure is minimised or the power dissipation within the absorber is maximised. If the host structure is approximated as a damped single degree of freedom, the optimal values for the ratio of the absorber's natural frequency to the host structure and the optimal damping ratio of the absorber are shown to be the same whether the kinetic energy of the host structure is minimised or the power dissipation of the absorber is maximised. It is also demonstrated that the total power input into the system does not depend on the two parameters but only on the host structure's mass.
4093-4100
Zilletti, Michele
a36b24f0-e4ce-4bdd-abc7-c1f1e9c154a2
Elliott, Stephen J.
721dc55c-8c3e-4895-b9c4-82f62abd3567
Rustighi, Emiliano
9544ced4-5057-4491-a45c-643873dfed96
August 2012
Zilletti, Michele
a36b24f0-e4ce-4bdd-abc7-c1f1e9c154a2
Elliott, Stephen J.
721dc55c-8c3e-4895-b9c4-82f62abd3567
Rustighi, Emiliano
9544ced4-5057-4491-a45c-643873dfed96
Zilletti, Michele, Elliott, Stephen J. and Rustighi, Emiliano
(2012)
Optimisation of dynamic vibration absorbers to minimise kinetic energy and maximise internal power dissipation.
Journal of Sound and Vibration, 331 (18), .
(doi:10.1016/j.jsv.2012.04.023).
Abstract
The tuning of a dynamic vibration absorber is considered such that either the kinetic energy of the host structure is minimised or the power dissipation within the absorber is maximised. If the host structure is approximated as a damped single degree of freedom, the optimal values for the ratio of the absorber's natural frequency to the host structure and the optimal damping ratio of the absorber are shown to be the same whether the kinetic energy of the host structure is minimised or the power dissipation of the absorber is maximised. It is also demonstrated that the total power input into the system does not depend on the two parameters but only on the host structure's mass.
Text
Manuscript.pdf
- Accepted Manuscript
More information
e-pub ahead of print date: 15 May 2012
Published date: August 2012
Organisations:
Dynamics Group, Signal Processing & Control Grp
Identifiers
Local EPrints ID: 339929
URI: http://eprints.soton.ac.uk/id/eprint/339929
ISSN: 0022-460X
PURE UUID: 519105df-ae70-471d-8fb6-e27c21c8f3e2
Catalogue record
Date deposited: 01 Jun 2012 14:20
Last modified: 14 Mar 2024 11:16
Export record
Altmetrics
Contributors
Author:
Michele Zilletti
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
