Experimental validation of a multi-material acoustic black hole
Experimental validation of a multi-material acoustic black hole
Geometric acoustic black holes (ABHs) have already been proven as an effective passive vibration control measure in plates and beams. However, the thin geometries inherent to the design raise concerns about the structure’s resistance to damage through fatigue. Multi-material ABHs (MMABHs) have been proposed as an alternative solution where by the material properties vary along the direction of wave propagation instead of the geometry. This, in theory, produces a change in acoustic impedance without the issues of fatigue seen in the geometric ABHs. Previous work has been performed on the design and modelling of polymer multi-material ABHs. This work discusses practices for experimental measurement and validation of multi-material ABHs produced through additive manufacturing
Austin, Beth
84deba14-6fb0-4285-84ee-a795502d998b
Cheer, Jordan
8e452f50-4c7d-4d4e-913a-34015e99b9dc
Bastola, Anil
fe4de67b-3c6d-49bf-bd4a-7c7211d7fed8
10 May 2024
Austin, Beth
84deba14-6fb0-4285-84ee-a795502d998b
Cheer, Jordan
8e452f50-4c7d-4d4e-913a-34015e99b9dc
Bastola, Anil
fe4de67b-3c6d-49bf-bd4a-7c7211d7fed8
Austin, Beth, Cheer, Jordan and Bastola, Anil
(2024)
Experimental validation of a multi-material acoustic black hole.
Proceedings of Meetings on Acoustics, 52 (1), [065004].
(doi:10.1121/2.0001866).
Abstract
Geometric acoustic black holes (ABHs) have already been proven as an effective passive vibration control measure in plates and beams. However, the thin geometries inherent to the design raise concerns about the structure’s resistance to damage through fatigue. Multi-material ABHs (MMABHs) have been proposed as an alternative solution where by the material properties vary along the direction of wave propagation instead of the geometry. This, in theory, produces a change in acoustic impedance without the issues of fatigue seen in the geometric ABHs. Previous work has been performed on the design and modelling of polymer multi-material ABHs. This work discusses practices for experimental measurement and validation of multi-material ABHs produced through additive manufacturing
This record has no associated files available for download.
More information
Accepted/In Press date: 6 March 2024
Published date: 10 May 2024
Venue - Dates:
Meeting of the Acoustical Society of America, , Sydney, Australia, 2023-12-04 - 2023-12-08
Identifiers
Local EPrints ID: 494982
URI: http://eprints.soton.ac.uk/id/eprint/494982
ISSN: 1939-800X
PURE UUID: e3b05ba3-6147-4d4c-83ba-de4e0b5cdff5
Catalogue record
Date deposited: 24 Oct 2024 16:48
Last modified: 25 Oct 2024 02:01
Export record
Altmetrics
Contributors
Author:
Beth Austin
Author:
Anil Bastola
Download statistics
Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.
View more statistics