Vibration decay using on-off stiffness control
Vibration decay using on-off stiffness control
A relatively new approach for shock and vibration isolation is to use semi-active or fully-active elements,which are designed to provide better vibration isolation over a broad range of excitation inputs. Several vibration isolation strategies have been proposed and developed using variable damping elements, variable-stiffness elements and different actuators. An interesting, novel control strategy is to have an isolator whose stiffness can take two values in an on-off manner. In this paper such a system is described and modelled, and in particular the free vibration decay behaviour is quantified and discussed.
This paper also describes the benefits of the variable stiffness isolator and quantifies the effective damping in terms of simple model parameters.
433-446
Katholieke Universiteit Leuven
Ledezma-Ramirez, D.F.
4a39f5b0-dd8e-43df-9082-310c83fb422b
Ferguson, N.S.
8cb67e30-48e2-491c-9390-d444fa786ac8
Brennan, M.J.
87c7bca3-a9e5-46aa-9153-34c712355a13
2006
Ledezma-Ramirez, D.F.
4a39f5b0-dd8e-43df-9082-310c83fb422b
Ferguson, N.S.
8cb67e30-48e2-491c-9390-d444fa786ac8
Brennan, M.J.
87c7bca3-a9e5-46aa-9153-34c712355a13
Ledezma-Ramirez, D.F., Ferguson, N.S. and Brennan, M.J.
(2006)
Vibration decay using on-off stiffness control.
In Proceedings of the International Conference on Noise & Vibration Engineering. ISMA 2006.
Katholieke Universiteit Leuven.
.
Record type:
Conference or Workshop Item
(Paper)
Abstract
A relatively new approach for shock and vibration isolation is to use semi-active or fully-active elements,which are designed to provide better vibration isolation over a broad range of excitation inputs. Several vibration isolation strategies have been proposed and developed using variable damping elements, variable-stiffness elements and different actuators. An interesting, novel control strategy is to have an isolator whose stiffness can take two values in an on-off manner. In this paper such a system is described and modelled, and in particular the free vibration decay behaviour is quantified and discussed.
This paper also describes the benefits of the variable stiffness isolator and quantifies the effective damping in terms of simple model parameters.
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Published date: 2006
Additional Information:
ID 226. CD-ROM
Venue - Dates:
International Conference on Noise and Vibration Engineering. ISMA 2006, Leuven, Belgium, 2006-09-18 - 2006-09-20
Identifiers
Local EPrints ID: 43433
URI: http://eprints.soton.ac.uk/id/eprint/43433
PURE UUID: 1b4f9627-1d64-4a6b-808c-3b2f54429a78
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Date deposited: 08 Feb 2007
Last modified: 10 Jan 2023 02:32
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Contributors
Author:
D.F. Ledezma-Ramirez
Author:
M.J. Brennan
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