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An electronically tunable duct silencer using dielectric elastomer actuators

An electronically tunable duct silencer using dielectric elastomer actuators
An electronically tunable duct silencer using dielectric elastomer actuators
A duct silencer with tunable acoustic characteristics is presented in this paper. Dielectric elastomer, a smart material with lightweight, high elastic energy density and large deformation under high direct current/alternating current voltages, was used to fabricate this duct silencer. The acoustic performances and tunable mechanisms of this duct silencer were experimentally investigated. It was found that all the resonance peaks of this duct silencer could be adjusted using external control signals without any additional mechanical part. The physics of the tunable mechanism is further discussed based on the electro-mechanical interactions using finite element analysis. The present promising results also provide insight into the appropriateness of the duct silencer for possible use as next generation acoustic treatment device to replace the traditional acoustic treatment.
0001-4966
EL236-EL241
Lu, Zhenbo
db4fd8c9-b01b-40ed-9ae9-4b172e95413b
Godaba, Hareesh
787c1482-6a29-43ad-b49e-a6a2b7175f0c
Cui, Yongdong
8efe164f-0e5b-4910-b862-828efadc4eea
Foo, Choon Chiang
58df5f23-c68e-40f5-a2fa-37d242f84e05
Debiasi, Marco
5df4dc38-9676-4118-9a3e-ba2180986a94
Zhu, Jian
d75c9b9d-87ba-45e0-a05f-72631e2b2967
Lu, Zhenbo
db4fd8c9-b01b-40ed-9ae9-4b172e95413b
Godaba, Hareesh
787c1482-6a29-43ad-b49e-a6a2b7175f0c
Cui, Yongdong
8efe164f-0e5b-4910-b862-828efadc4eea
Foo, Choon Chiang
58df5f23-c68e-40f5-a2fa-37d242f84e05
Debiasi, Marco
5df4dc38-9676-4118-9a3e-ba2180986a94
Zhu, Jian
d75c9b9d-87ba-45e0-a05f-72631e2b2967

Lu, Zhenbo, Godaba, Hareesh, Cui, Yongdong, Foo, Choon Chiang, Debiasi, Marco and Zhu, Jian (2015) An electronically tunable duct silencer using dielectric elastomer actuators. The Journal of The Acoustical Society of America, 138 (3), EL236-EL241. (doi:10.1121/1.4929629).

Record type: Article

Abstract

A duct silencer with tunable acoustic characteristics is presented in this paper. Dielectric elastomer, a smart material with lightweight, high elastic energy density and large deformation under high direct current/alternating current voltages, was used to fabricate this duct silencer. The acoustic performances and tunable mechanisms of this duct silencer were experimentally investigated. It was found that all the resonance peaks of this duct silencer could be adjusted using external control signals without any additional mechanical part. The physics of the tunable mechanism is further discussed based on the electro-mechanical interactions using finite element analysis. The present promising results also provide insight into the appropriateness of the duct silencer for possible use as next generation acoustic treatment device to replace the traditional acoustic treatment.

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Accepted/In Press date: 12 August 2015
Published date: 8 September 2015

Identifiers

Local EPrints ID: 499290
URI: http://eprints.soton.ac.uk/id/eprint/499290
ISSN: 0001-4966
PURE UUID: 1df183ca-8af1-47c3-b246-5a8a92475f5b
ORCID for Hareesh Godaba: ORCID iD orcid.org/0000-0001-6600-8513

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Date deposited: 14 Mar 2025 17:31
Last modified: 22 Aug 2025 02:46

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Contributors

Author: Zhenbo Lu
Author: Hareesh Godaba ORCID iD
Author: Yongdong Cui
Author: Choon Chiang Foo
Author: Marco Debiasi
Author: Jian Zhu

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