Acoustic characterization of additive manufactured micro-perforated panel backed by honeycomb structure
Acoustic characterization of additive manufactured micro-perforated panel backed by honeycomb structure
This paper studies the acoustic properties of an additive manufactured micro-perforated panel backed by a periodic honeycomb structure. Extrusion-based Fused Filament Fabrication (FFF) technique of Additive Manufacturing (AM) is used. Absorption coefficient of the proposed structure is measured using an Impedance tube. An analytical model is developed to predict the acoustic absorption coefficient. The analytical results are compared with the experimental results and a good agreement is observed between them. A parametric study is conducted to understand the effect of perforated hole size on the absorption coefficient and peak frequency.
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
29 August 2018
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.
(2018)
Acoustic characterization of additive manufactured micro-perforated panel backed by honeycomb structure.
47th International Congress and<br/>Exposition on Noise Control<br/>Engineering, , Chicago, United States.
26 - 29 Aug 2018.
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Conference or Workshop Item
(Paper)
Abstract
This paper studies the acoustic properties of an additive manufactured micro-perforated panel backed by a periodic honeycomb structure. Extrusion-based Fused Filament Fabrication (FFF) technique of Additive Manufacturing (AM) is used. Absorption coefficient of the proposed structure is measured using an Impedance tube. An analytical model is developed to predict the acoustic absorption coefficient. The analytical results are compared with the experimental results and a good agreement is observed between them. A parametric study is conducted to understand the effect of perforated hole size on the absorption coefficient and peak frequency.
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Published date: 29 August 2018
Venue - Dates:
47th International Congress and<br/>Exposition on Noise Control<br/>Engineering, , Chicago, United States, 2018-08-26 - 2018-08-29
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Local EPrints ID: 472871
URI: http://eprints.soton.ac.uk/id/eprint/472871
PURE UUID: d473b566-e7e5-4f34-baa1-a5d600d4818c
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Date deposited: 20 Dec 2022 17:45
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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