A tuneable vibration absorber based on rotating stiffness elements
A tuneable vibration absorber based on rotating stiffness elements
The tuned vibration absorber (TVA) is a single degree of freedom device that may be added
to a vibrating structure in order to reduce its vibration response at a particular troublesome
resonance or excitation frequency. This mechanism, in its undamped configuration, is very
effective at the tuning frequency; however it tends to detune because of changes in the structure
or loading conditions. In the past, differentmechanisms have been proposed, which by changing
the stiffness of the elastic element of the TVA tune the system. These systems have not found yet
an industrial application because of their limitations in tunable frequency range or in actuation
time or in reliability. In this paper a new tunable mechanism is proposed. The device proposed
is based on a rotating spring element which capitalizes on a different axial and transversal
stiffness. The device has the advantages to be more robust and readily automated than devices
previously proposed. Theoretically, when secondary resonances of the device are neglected, a
large tunable range can be obtained. Analytical and numerical investigations are presented and
a prototype is designed and tested.
dynamic vibration absorber, adaptive active vibration control
9780854329106
University of Southampton
Rustighi, E.
9544ced4-5057-4491-a45c-643873dfed96
2010
Rustighi, E.
9544ced4-5057-4491-a45c-643873dfed96
Rustighi, E.
(2010)
A tuneable vibration absorber based on rotating stiffness elements.
Brennan, M.J., Kovacic, Ivana, Lopes Jr, V., Murphy, K., Petersson, B., Rizzi, S. and Yang, T.
(eds.)
In Proceedings of the Tenth International Conference on Recent Advances in Structural Dynamics (RASD2010).
University of Southampton..
Record type:
Conference or Workshop Item
(Paper)
Abstract
The tuned vibration absorber (TVA) is a single degree of freedom device that may be added
to a vibrating structure in order to reduce its vibration response at a particular troublesome
resonance or excitation frequency. This mechanism, in its undamped configuration, is very
effective at the tuning frequency; however it tends to detune because of changes in the structure
or loading conditions. In the past, differentmechanisms have been proposed, which by changing
the stiffness of the elastic element of the TVA tune the system. These systems have not found yet
an industrial application because of their limitations in tunable frequency range or in actuation
time or in reliability. In this paper a new tunable mechanism is proposed. The device proposed
is based on a rotating spring element which capitalizes on a different axial and transversal
stiffness. The device has the advantages to be more robust and readily automated than devices
previously proposed. Theoretically, when secondary resonances of the device are neglected, a
large tunable range can be obtained. Analytical and numerical investigations are presented and
a prototype is designed and tested.
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More information
Published date: 2010
Additional Information:
Paper No. 086,12pp(Format - USB Pen Drive)
Keywords:
dynamic vibration absorber, adaptive active vibration control
Identifiers
Local EPrints ID: 160741
URI: http://eprints.soton.ac.uk/id/eprint/160741
ISBN: 9780854329106
PURE UUID: 7ba5de1f-7771-4fcd-a59a-c5e47bc21c3a
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Date deposited: 21 Jul 2010 07:59
Last modified: 11 Dec 2021 04:01
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Contributors
Editor:
M.J. Brennan
Editor:
Ivana Kovacic
Editor:
V. Lopes Jr
Editor:
K. Murphy
Editor:
B. Petersson
Editor:
S. Rizzi
Editor:
T. Yang
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