Acoustic measurement of additive manufactured concentric tube reverse flow resonators
Acoustic measurement of additive manufactured concentric tube reverse flow resonators
This study investigates acoustic properties of additive manufactured (AM) concentric tube reverse flow (RF) resonators where acoustic attenuation with smaller sample length is achieved by increasing effective travel length of acoustic waves within a structure. The theoretical modeling based on narrow tube theory has been proposed to predict absorption coefficient, while numerical estimation of absorption coefficient is carried out using finite element method (FEM). The predicted theoretical and numerical results are found to be in good agreement with measured results in impedance tube, thus demonstrating its potential in achieving low frequency attenuation with compact size structures.
Concentric resonators, acoustic absorption coefficient, acoustic impedance, additive manufacturing, impedance tube, narrow tubes
56-61
Akiwate, Deepak C.
b6f50d26-e59b-413e-9c66-0ee0a869813c
Date, Mahendra D.
05c2b428-fc1b-4cd5-a524-a81bc0985499
Venkatesham, B.
44202c00-3e20-4cb5-9ff5-08405944fcd8
Suryakumar, S.
3cb0d702-eba7-4f41-b7e5-7db8c432a3e6
2 January 2019
Akiwate, Deepak C.
b6f50d26-e59b-413e-9c66-0ee0a869813c
Date, Mahendra D.
05c2b428-fc1b-4cd5-a524-a81bc0985499
Venkatesham, B.
44202c00-3e20-4cb5-9ff5-08405944fcd8
Suryakumar, S.
3cb0d702-eba7-4f41-b7e5-7db8c432a3e6
Akiwate, Deepak C., Date, Mahendra D., Venkatesham, B. and Suryakumar, S.
(2019)
Acoustic measurement of additive manufactured concentric tube reverse flow resonators.
Mechanics of Advanced Materials and Structures, 26 (1), .
(doi:10.1080/15376494.2018.1534163).
Abstract
This study investigates acoustic properties of additive manufactured (AM) concentric tube reverse flow (RF) resonators where acoustic attenuation with smaller sample length is achieved by increasing effective travel length of acoustic waves within a structure. The theoretical modeling based on narrow tube theory has been proposed to predict absorption coefficient, while numerical estimation of absorption coefficient is carried out using finite element method (FEM). The predicted theoretical and numerical results are found to be in good agreement with measured results in impedance tube, thus demonstrating its potential in achieving low frequency attenuation with compact size structures.
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More information
Accepted/In Press date: 28 August 2018
e-pub ahead of print date: 24 December 2018
Published date: 2 January 2019
Keywords:
Concentric resonators, acoustic absorption coefficient, acoustic impedance, additive manufacturing, impedance tube, narrow tubes
Identifiers
Local EPrints ID: 472837
URI: http://eprints.soton.ac.uk/id/eprint/472837
ISSN: 1537-6532
PURE UUID: 44269624-ca47-437a-a5dc-ae42c91a9b5e
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Date deposited: 20 Dec 2022 17:33
Last modified: 16 Mar 2024 23:03
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Contributors
Author:
Deepak C. Akiwate
Author:
Mahendra D. Date
Author:
B. Venkatesham
Author:
S. Suryakumar
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