Integration of active control with a compound acoustic black hole
Integration of active control with a compound acoustic black hole
Acoustic Black Holes (ABHs) achieve high levels of vibration control with low or negative weight requirements depending on the designed configuration. ABHs are generally realised by introducing a reducing thickness profile into a structure, which reduces the flexural wave speed, decreases the wavelength of vibration and, therefore, enhances the functional performance of damping treatment applied to the ABH. The control bandwidth of ABHs is limited by the taper length and various measures to increase the low frequency performance have been explored, including the integration of active control. Another practical limiting factor for ABHs is their susceptibility to damage due to the potential for high strain in the taper. Various design modifications have been proposed to improve the ABH strength whilst maintaining control performance, including the compound ABH. This paper will investigate the integration of active control into a compound ABH, proposing possible design configurations and exploring the potential performance.
Cheer, Jordan
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Singleton, Lawrence
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Tan, Joe
c8eccdaa-8e07-4f69-9dcc-c2cbd16c251d
9 September 2024
Cheer, Jordan
8e452f50-4c7d-4d4e-913a-34015e99b9dc
Singleton, Lawrence
f6f4a617-b532-4c75-a86d-ed52e4da2e48
Tan, Joe
c8eccdaa-8e07-4f69-9dcc-c2cbd16c251d
Cheer, Jordan, Singleton, Lawrence and Tan, Joe
(2024)
Integration of active control with a compound acoustic black hole.
International Conference on Noise and Vibration Engineering, KU Leuven, Leuven, Belgium.
09 - 11 Sep 2024.
10 pp
.
Record type:
Conference or Workshop Item
(Paper)
Abstract
Acoustic Black Holes (ABHs) achieve high levels of vibration control with low or negative weight requirements depending on the designed configuration. ABHs are generally realised by introducing a reducing thickness profile into a structure, which reduces the flexural wave speed, decreases the wavelength of vibration and, therefore, enhances the functional performance of damping treatment applied to the ABH. The control bandwidth of ABHs is limited by the taper length and various measures to increase the low frequency performance have been explored, including the integration of active control. Another practical limiting factor for ABHs is their susceptibility to damage due to the potential for high strain in the taper. Various design modifications have been proposed to improve the ABH strength whilst maintaining control performance, including the compound ABH. This paper will investigate the integration of active control into a compound ABH, proposing possible design configurations and exploring the potential performance.
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Published date: 9 September 2024
Venue - Dates:
International Conference on Noise and Vibration Engineering, KU Leuven, Leuven, Belgium, 2024-09-09 - 2024-09-11
Identifiers
Local EPrints ID: 495006
URI: http://eprints.soton.ac.uk/id/eprint/495006
PURE UUID: 409a0fe6-3cd3-4f85-bf8b-e4bf76e3a833
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Date deposited: 25 Oct 2024 16:39
Last modified: 26 Oct 2024 01:43
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Contributors
Author:
Lawrence Singleton
Author:
Joe Tan
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