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 lightly damped, single degree of freedom, system, simple expressions are obtained for the optimal ratio of the absorber natural frequency to the host natural frequency and optimal damping ratio of the absorber. These optimal values are shown to be the same whether the kinetic energy of the host structure is minimised or if the power dissipation of the absorber is maximised
University of Southampton
Zilletti, M.
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Elliott, S.J.
721dc55c-8c3e-4895-b9c4-82f62abd3567
Rustighi, E.
9544ced4-5057-4491-a45c-643873dfed96
June 2011
Zilletti, M.
5dbddbf0-751b-415f-b87a-c1e91be86c85
Elliott, S.J.
721dc55c-8c3e-4895-b9c4-82f62abd3567
Rustighi, E.
9544ced4-5057-4491-a45c-643873dfed96
Zilletti, M., Elliott, S.J. and Rustighi, E.
(2011)
Optimisation of dynamic vibration absorbers to minimise kinetic energy and maximise internal power dissipation
(ISVR Technical Memorandum, 992)
Southampton, GB.
University of Southampton
28pp.
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Monograph
(Project Report)
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 lightly damped, single degree of freedom, system, simple expressions are obtained for the optimal ratio of the absorber natural frequency to the host natural frequency and optimal damping ratio of the absorber. These optimal values are shown to be the same whether the kinetic energy of the host structure is minimised or if the power dissipation of the absorber is maximised
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Published date: June 2011
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Local EPrints ID: 193481
URI: http://eprints.soton.ac.uk/id/eprint/193481
PURE UUID: d0fad184-8b44-4779-a12e-f9b8d5e1c9c7
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Date deposited: 14 Jul 2011 11:44
Last modified: 14 Mar 2024 03:55
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Author:
M. Zilletti
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