Electromechanical pendulum for vibration control and energy harvesting
Electromechanical pendulum for vibration control and energy harvesting
This paper presents the design of an experimental electromechanical device for vibration control and energy harvesting. Traditionally, when the broadband resonant response due to a selected mode of a lightly damped structure needs to be controlled a vibration absorber is used. The resonance frequency of the absorber can be chosen to minimise the response of the structure under control. Optimising the damping ratio to achieve this aim also dissipates the most power in the damper, but care must be taken not to exceed the maximum throw of the device at high excitation levels. The absorber may also be mistuned by changes in operation condition and thus underperform. It is thus important to be able to design tuneable vibration absorbers, able to adapt their resonance frequency and their damping ratio depending on the operation condition.
In this paper an electromechanical device consisting of a pendulum connected to an electrical motor is proposed. It is shown that by shunting the terminal of the device with an appropriate electrical circuit it is possible to control both its resonance frequency and its damping ratio. The power dissipated in the resistive part of the shunt circuit could also be harvested and used to implement the tuning mechanism, or for other purposes.
tuneable vibration absorber, electromechanical absorber, energy harvesting
Zilletti, Michele
a36b24f0-e4ce-4bdd-abc7-c1f1e9c154a2
Elliott, Stephen
721dc55c-8c3e-4895-b9c4-82f62abd3567
Ghandchi Tehrani, Maryam
c2251e5b-a029-46e2-b585-422120a7bc44
Zilletti, Michele
a36b24f0-e4ce-4bdd-abc7-c1f1e9c154a2
Elliott, Stephen
721dc55c-8c3e-4895-b9c4-82f62abd3567
Ghandchi Tehrani, Maryam
c2251e5b-a029-46e2-b585-422120a7bc44
Zilletti, Michele, Elliott, Stephen and Ghandchi Tehrani, Maryam
(2016)
Electromechanical pendulum for vibration control and energy harvesting.
EACS 2016 – 6th European Conference on Structural Control, Sheffield, United Kingdom.
11 - 13 Jul 2016.
10 pp
.
Record type:
Conference or Workshop Item
(Paper)
Abstract
This paper presents the design of an experimental electromechanical device for vibration control and energy harvesting. Traditionally, when the broadband resonant response due to a selected mode of a lightly damped structure needs to be controlled a vibration absorber is used. The resonance frequency of the absorber can be chosen to minimise the response of the structure under control. Optimising the damping ratio to achieve this aim also dissipates the most power in the damper, but care must be taken not to exceed the maximum throw of the device at high excitation levels. The absorber may also be mistuned by changes in operation condition and thus underperform. It is thus important to be able to design tuneable vibration absorbers, able to adapt their resonance frequency and their damping ratio depending on the operation condition.
In this paper an electromechanical device consisting of a pendulum connected to an electrical motor is proposed. It is shown that by shunting the terminal of the device with an appropriate electrical circuit it is possible to control both its resonance frequency and its damping ratio. The power dissipated in the resistive part of the shunt circuit could also be harvested and used to implement the tuning mechanism, or for other purposes.
Other
102ZILLETTI.PDF
- Accepted Manuscript
More information
Accepted/In Press date: 11 February 2016
e-pub ahead of print date: 13 July 2016
Venue - Dates:
EACS 2016 – 6th European Conference on Structural Control, Sheffield, United Kingdom, 2016-07-11 - 2016-07-13
Keywords:
tuneable vibration absorber, electromechanical absorber, energy harvesting
Organisations:
Signal Processing & Control Grp
Identifiers
Local EPrints ID: 399660
URI: http://eprints.soton.ac.uk/id/eprint/399660
PURE UUID: 6b710c29-6be9-4ac3-bdf2-d3d54f359899
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Date deposited: 23 Aug 2016 10:18
Last modified: 15 Mar 2024 01:57
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Contributors
Author:
Michele Zilletti
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