Realisation of acoustic black holes using multi-material additive manufacturing
Realisation of acoustic black holes using multi-material additive manufacturing
Acoustic black holes (ABHs) have been widely accepted as an effective passive vibration control technique, with multiple configurations investigated for different applications. However, traditional manufacturing techniques may limit the potential geometries and configurations of the ABH. For example, the required damping layer has to be applied to the surface of the ABH taper rather than being embedded throughout or within the taper. In addition, conventional subtractive manufacturing is particularly wasteful for the realisation of ABHs, which rely on the removal of material to create a tapering structure. Therefore, in this work, we investigate the use of multi-material additive manufacturing as a potential solution, which avoids waste material in the manufacturing process and is capable of realising complex geometries, such as enclosing one material inside another. An ABH taper in a beam termination application has been implemented using polymer multi-material inkjet printing. The additively manufactured ABH was modelled using finite element analysis, before being manufactured and experimentally tested to enable an investigation of the vibration attenuation capabilities of such an ABH realisation.
acoustic black holes, additive manufacturing, inkjet printing, multi material 3D printing, passive vibration control
Austin, Elizabeth Hannah
84deba14-6fb0-4285-84ee-a795502d998b
Cheer, Jordan
8e452f50-4c7d-4d4e-913a-34015e99b9dc
12 December 2022
Austin, Elizabeth Hannah
84deba14-6fb0-4285-84ee-a795502d998b
Cheer, Jordan
8e452f50-4c7d-4d4e-913a-34015e99b9dc
Austin, Elizabeth Hannah and Cheer, Jordan
(2022)
Realisation of acoustic black holes using multi-material additive manufacturing.
Frontiers in Physics, 10, [1070345].
(doi:10.3389/fphy.2022.1070345).
Abstract
Acoustic black holes (ABHs) have been widely accepted as an effective passive vibration control technique, with multiple configurations investigated for different applications. However, traditional manufacturing techniques may limit the potential geometries and configurations of the ABH. For example, the required damping layer has to be applied to the surface of the ABH taper rather than being embedded throughout or within the taper. In addition, conventional subtractive manufacturing is particularly wasteful for the realisation of ABHs, which rely on the removal of material to create a tapering structure. Therefore, in this work, we investigate the use of multi-material additive manufacturing as a potential solution, which avoids waste material in the manufacturing process and is capable of realising complex geometries, such as enclosing one material inside another. An ABH taper in a beam termination application has been implemented using polymer multi-material inkjet printing. The additively manufactured ABH was modelled using finite element analysis, before being manufactured and experimentally tested to enable an investigation of the vibration attenuation capabilities of such an ABH realisation.
Text
fphy-10-1070345 (1)
- Version of Record
More information
Accepted/In Press date: 25 November 2022
Published date: 12 December 2022
Additional Information:
Funding Information:
This work was supported by an EPSRC Prosperity Partnership (No. EP/S03661X/1).
Publisher Copyright:
Copyright © 2022 Austin and Cheer.
Keywords:
acoustic black holes, additive manufacturing, inkjet printing, multi material 3D printing, passive vibration control
Identifiers
Local EPrints ID: 473204
URI: http://eprints.soton.ac.uk/id/eprint/473204
ISSN: 0429-7725
PURE UUID: f10e4446-6993-4fd8-99a3-efafae2ab467
Catalogue record
Date deposited: 12 Jan 2023 17:49
Last modified: 06 Jun 2024 02:12
Export record
Altmetrics
Contributors
Author:
Elizabeth Hannah Austin
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