Experimental investigations of membrane-type acoustic metamaterials with eccentric masses for broadband sound isolation

Siu Kit Lau; Zhenbo Lu; Yiyuan Liu; Xiang Yu; Mohamad Zuraimi Bin Endot; Boo Cheong Khoo

Experimental investigations of membrane-type acoustic metamaterials with eccentric masses for broadband sound isolation

Siu Kit Lau, Zhenbo Lu, Yiyuan Liu, Xiang Yu, Mohamad Zuraimi Bin Endot, Boo Cheong Khoo

Research output: Unpublished conference presentation (presented paper, abstract, poster) › Conference presentation (not published in journal/proceeding/book) › Academic research › peer-review

1 Citation (Scopus)

Abstract

Membrane-type acoustic metamaterials (MAMs) are lightweight and compact materials with periodic structure. These materials reveal dramatically better sound insulation at low frequencies than the conventional systems of similar dimensions and weight. It promises for the applications of lightweight construction and vehicular cabin to screen sound at a particular frequency band. Existing studies by the authors and other researchers showed that the MAMs with optimized mass distributions could improve the performance of sound insulation. In the present paper, MAMs with eccentric masses are designed and fabricated, and these prototypes are used for experimentally investigating their acoustic performance. Results agree with the numerical results, and they show that the MAMs with optimized eccentric masses' distribution can significantly broaden the frequency range of sound insulation in the low-frequency range.

Original language	English
Publication status	Published - 2017
Externally published	Yes
Event	46th International Congress and Exposition on Noise Control Engineering: Taming Noise and Moving Quiet, INTER-NOISE 2017 - Hong Kong, China Duration: 27 Aug 2017 → 30 Aug 2017

Conference

Conference	46th International Congress and Exposition on Noise Control Engineering: Taming Noise and Moving Quiet, INTER-NOISE 2017
Country/Territory	China
City	Hong Kong
Period	27/08/17 → 30/08/17

Keywords

Building acoustics
Eccentric masses
Membrane-type acoustic metamaterials (MAMs)
Sound insulation

ASJC Scopus subject areas

Acoustics and Ultrasonics

Cite this

@conference{464eb922260a487ba1de974544844152,

title = "Experimental investigations of membrane-type acoustic metamaterials with eccentric masses for broadband sound isolation",

abstract = "Membrane-type acoustic metamaterials (MAMs) are lightweight and compact materials with periodic structure. These materials reveal dramatically better sound insulation at low frequencies than the conventional systems of similar dimensions and weight. It promises for the applications of lightweight construction and vehicular cabin to screen sound at a particular frequency band. Existing studies by the authors and other researchers showed that the MAMs with optimized mass distributions could improve the performance of sound insulation. In the present paper, MAMs with eccentric masses are designed and fabricated, and these prototypes are used for experimentally investigating their acoustic performance. Results agree with the numerical results, and they show that the MAMs with optimized eccentric masses' distribution can significantly broaden the frequency range of sound insulation in the low-frequency range.",

keywords = "Building acoustics, Eccentric masses, Membrane-type acoustic metamaterials (MAMs), Sound insulation",

author = "Lau, {Siu Kit} and Zhenbo Lu and Yiyuan Liu and Xiang Yu and Endot, {Mohamad Zuraimi Bin} and Khoo, {Boo Cheong}",

note = "Publisher Copyright: {\textcopyright} 2017 Institute of Noise Control Engineering. All rights reserved.; 46th International Congress and Exposition on Noise Control Engineering: Taming Noise and Moving Quiet, INTER-NOISE 2017 ; Conference date: 27-08-2017 Through 30-08-2017",

year = "2017",

language = "English",

}

Experimental investigations of membrane-type acoustic metamaterials with eccentric masses for broadband sound isolation. / Lau, Siu Kit; Lu, Zhenbo; Liu, Yiyuan et al.
2017. Paper presented at 46th International Congress and Exposition on Noise Control Engineering: Taming Noise and Moving Quiet, INTER-NOISE 2017, Hong Kong, China.

Research output: Unpublished conference presentation (presented paper, abstract, poster) › Conference presentation (not published in journal/proceeding/book) › Academic research › peer-review

TY - CONF

T1 - Experimental investigations of membrane-type acoustic metamaterials with eccentric masses for broadband sound isolation

AU - Lau, Siu Kit

AU - Lu, Zhenbo

AU - Liu, Yiyuan

AU - Yu, Xiang

AU - Endot, Mohamad Zuraimi Bin

AU - Khoo, Boo Cheong

PY - 2017

Y1 - 2017

N2 - Membrane-type acoustic metamaterials (MAMs) are lightweight and compact materials with periodic structure. These materials reveal dramatically better sound insulation at low frequencies than the conventional systems of similar dimensions and weight. It promises for the applications of lightweight construction and vehicular cabin to screen sound at a particular frequency band. Existing studies by the authors and other researchers showed that the MAMs with optimized mass distributions could improve the performance of sound insulation. In the present paper, MAMs with eccentric masses are designed and fabricated, and these prototypes are used for experimentally investigating their acoustic performance. Results agree with the numerical results, and they show that the MAMs with optimized eccentric masses' distribution can significantly broaden the frequency range of sound insulation in the low-frequency range.

AB - Membrane-type acoustic metamaterials (MAMs) are lightweight and compact materials with periodic structure. These materials reveal dramatically better sound insulation at low frequencies than the conventional systems of similar dimensions and weight. It promises for the applications of lightweight construction and vehicular cabin to screen sound at a particular frequency band. Existing studies by the authors and other researchers showed that the MAMs with optimized mass distributions could improve the performance of sound insulation. In the present paper, MAMs with eccentric masses are designed and fabricated, and these prototypes are used for experimentally investigating their acoustic performance. Results agree with the numerical results, and they show that the MAMs with optimized eccentric masses' distribution can significantly broaden the frequency range of sound insulation in the low-frequency range.

KW - Building acoustics

KW - Eccentric masses

KW - Membrane-type acoustic metamaterials (MAMs)

KW - Sound insulation

UR - http://www.scopus.com/inward/record.url?scp=85042005669&partnerID=8YFLogxK

M3 - Conference presentation (not published in journal/proceeding/book)

AN - SCOPUS:85042005669

T2 - 46th International Congress and Exposition on Noise Control Engineering: Taming Noise and Moving Quiet, INTER-NOISE 2017

Y2 - 27 August 2017 through 30 August 2017

ER -

Experimental investigations of membrane-type acoustic metamaterials with eccentric masses for broadband sound isolation

Abstract

Conference

Keywords

ASJC Scopus subject areas

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