Analysis and optimisation of tuned mass dampers for impulsive excitation
Analysis and optimisation of tuned mass dampers for impulsive excitation
Tuned Mass Damper (TMD) devices have been widely studied and optimised in the framework of persistent dynamic loadings, such as harmonic and white noise excitations, in order to reduce as much as possible the steady-state response of an assigned primary structure. In this sense, the present paper arises as a complementary study on the topic, since here shock input is assumed as dynamic loading, so as to investigate the effectiveness of TMDs in reducing the transient structural response. In particular, an impulsive loading has been considered, acting as a base displacement, which is a situation that may occur in real applications. First, a comprehensive dynamic analysis of the system comprising of a primary structure and an attached passive TMD is carried out in the time domain. Focus is placed on the relationships between the load input and the system properties, in order to explore the dynamic behaviour of such system and to identify the main response trends, mostly as a function of the free TMD parameters, namely mass, frequency and TMD damping ratios. Subsequently, a hybrid TMD has been considered, by adding a feedback controller to the previously optimised passive TMD, so as to improve the performance of such a device, especially in reducing the peak response of the primary structure. The contents of the present work have the final aim of identifying the potential level of effectiveness of the TMD devices and to supply important guidelines towards their optimal design in reducing the structural response also to shock excitations. This should display significant relevance in different practical applications, including in the field of earthquake engineering.
passive and hybrid tuned mass damper (TMD), optimal tuning, shock loading, impulse excitation, feedback control
9780854329649
Salvi, Jonathan
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Rizzi, Egidio
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Rustighi, Emiliano
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Ferguson, Neil S.
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Rustighi, Emiliano
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Ferguson, Neil S.
8cb67e30-48e2-491c-9390-d444fa786ac8
Forte, Paola
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Boltežar, Miha
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Brennan, Michael J.
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Chakraverty, Snehashish
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Halkyard, Roger
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Nakano, Kimihiko
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Rizzi, Stephen A.
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Spottswood, Stephen M.
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2 July 2013
Salvi, Jonathan
5dcba033-16f9-4682-93eb-efbb049ec735
Rizzi, Egidio
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Rustighi, Emiliano
9544ced4-5057-4491-a45c-643873dfed96
Ferguson, Neil S.
8cb67e30-48e2-491c-9390-d444fa786ac8
Rustighi, Emiliano
9544ced4-5057-4491-a45c-643873dfed96
Ferguson, Neil S.
8cb67e30-48e2-491c-9390-d444fa786ac8
Forte, Paola
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Boltežar, Miha
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Brennan, Michael J.
6cd04f1d-306d-4d71-9665-d0c7c5c0dac5
Chakraverty, Snehashish
bc738b00-9cd3-4d25-8e9d-eda3a04f10a3
Halkyard, Roger
a98596e7-6935-40a3-8bdf-2b1a1b016d5e
Nakano, Kimihiko
37314831-0f74-4062-b98a-b1d36cec7864
Rizzi, Stephen A.
351b4dc4-fdf4-4934-8378-904518b23793
Spottswood, Stephen M.
be82bf27-e437-46ec-87aa-c07f9a335c83
Salvi, Jonathan, Rizzi, Egidio, Rustighi, Emiliano and Ferguson, Neil S.
(2013)
Analysis and optimisation of tuned mass dampers for impulsive excitation.
Rustighi, Emiliano, Ferguson, Neil S., Forte, Paola, Boltežar, Miha, Brennan, Michael J., Chakraverty, Snehashish, Halkyard, Roger, Nakano, Kimihiko, Rizzi, Stephen A. and Spottswood, Stephen M.
(eds.)
RASD2013: 11th International Conference on Recent Advances in Structural Dynamics, Pisa, Italy.
01 - 03 Jul 2013.
15 pp
.
Record type:
Conference or Workshop Item
(Paper)
Abstract
Tuned Mass Damper (TMD) devices have been widely studied and optimised in the framework of persistent dynamic loadings, such as harmonic and white noise excitations, in order to reduce as much as possible the steady-state response of an assigned primary structure. In this sense, the present paper arises as a complementary study on the topic, since here shock input is assumed as dynamic loading, so as to investigate the effectiveness of TMDs in reducing the transient structural response. In particular, an impulsive loading has been considered, acting as a base displacement, which is a situation that may occur in real applications. First, a comprehensive dynamic analysis of the system comprising of a primary structure and an attached passive TMD is carried out in the time domain. Focus is placed on the relationships between the load input and the system properties, in order to explore the dynamic behaviour of such system and to identify the main response trends, mostly as a function of the free TMD parameters, namely mass, frequency and TMD damping ratios. Subsequently, a hybrid TMD has been considered, by adding a feedback controller to the previously optimised passive TMD, so as to improve the performance of such a device, especially in reducing the peak response of the primary structure. The contents of the present work have the final aim of identifying the potential level of effectiveness of the TMD devices and to supply important guidelines towards their optimal design in reducing the structural response also to shock excitations. This should display significant relevance in different practical applications, including in the field of earthquake engineering.
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e-pub ahead of print date: July 2013
Published date: 2 July 2013
Venue - Dates:
RASD2013: 11th International Conference on Recent Advances in Structural Dynamics, Pisa, Italy, 2013-07-01 - 2013-07-03
Keywords:
passive and hybrid tuned mass damper (TMD), optimal tuning, shock loading, impulse excitation, feedback control
Organisations:
Dynamics Group
Identifiers
Local EPrints ID: 355210
URI: http://eprints.soton.ac.uk/id/eprint/355210
ISBN: 9780854329649
PURE UUID: bbb649f1-7a04-4aae-9282-ff0a6962c5d1
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Date deposited: 21 Aug 2013 08:36
Last modified: 15 Mar 2024 02:34
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Contributors
Author:
Jonathan Salvi
Author:
Egidio Rizzi
Editor:
Paola Forte
Editor:
Miha Boltežar
Editor:
Michael J. Brennan
Editor:
Snehashish Chakraverty
Editor:
Roger Halkyard
Editor:
Kimihiko Nakano
Editor:
Stephen A. Rizzi
Editor:
Stephen M. Spottswood
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