A model of acoustical right-angle bend (With metamaterials)

Yafeng Bi; Wenlin Hu; Jun Yang

A model of acoustical right-angle bend (With metamaterials)

Yafeng Bi, Wenlin Hu, Jun Yang

CAS - Institute of Acoustics

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

1 Citation (Scopus)

Abstract

We propose a two-dimensional fan-shaped model to design an acoustical right-angle bend for sound beam. The quarter circular model is comprised of metamaterials with anistropic refractive index. Due to the gradual decrease of the refractive index from inner to external along the radius of the model, the sound velocity increase with the increase of radius, which leads to a capability of bending a sound propagating beam through a right angle with no reflection loss. The results are validated by simulations in the frequency range of 3500 Hz to 4500 Hz. This model may have potential for practical applications in various areas such as sound absorption in pipeline and detection in industry.

Original language	English
Title of host publication	21st International Congress on Sound and Vibration 2014, ICSV 2014
Publisher	International Institute of Acoustics and Vibrations
Pages	4791-4796
Number of pages	6
ISBN (Electronic)	9781634392389
Publication status	Published - 2014
Externally published	Yes
Event	21st International Congress on Sound and Vibration 2014, ICSV 2014 - Beijing, China Duration: Jul 13 2014 → Jul 17 2014

Publication series

Name	21st International Congress on Sound and Vibration 2014, ICSV 2014
Volume	6

Conference

Conference	21st International Congress on Sound and Vibration 2014, ICSV 2014
Country/Territory	China
City	Beijing
Period	7/13/14 → 7/17/14

ASJC Scopus Subject Areas

Acoustics and Ultrasonics

Cite this

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title = "A model of acoustical right-angle bend (With metamaterials)",

abstract = "We propose a two-dimensional fan-shaped model to design an acoustical right-angle bend for sound beam. The quarter circular model is comprised of metamaterials with anistropic refractive index. Due to the gradual decrease of the refractive index from inner to external along the radius of the model, the sound velocity increase with the increase of radius, which leads to a capability of bending a sound propagating beam through a right angle with no reflection loss. The results are validated by simulations in the frequency range of 3500 Hz to 4500 Hz. This model may have potential for practical applications in various areas such as sound absorption in pipeline and detection in industry.",

author = "Yafeng Bi and Wenlin Hu and Jun Yang",

year = "2014",

language = "English",

series = "21st International Congress on Sound and Vibration 2014, ICSV 2014",

publisher = "International Institute of Acoustics and Vibrations",

pages = "4791--4796",

booktitle = "21st International Congress on Sound and Vibration 2014, ICSV 2014",

address = "United States",

note = "21st International Congress on Sound and Vibration 2014, ICSV 2014 ; Conference date: 13-07-2014 Through 17-07-2014",

}

Bi, Y, Hu, W & Yang, J 2014, A model of acoustical right-angle bend (With metamaterials). in 21st International Congress on Sound and Vibration 2014, ICSV 2014. 21st International Congress on Sound and Vibration 2014, ICSV 2014, vol. 6, International Institute of Acoustics and Vibrations, pp. 4791-4796, 21st International Congress on Sound and Vibration 2014, ICSV 2014, Beijing, China, 7/13/14.

A model of acoustical right-angle bend (With metamaterials). / Bi, Yafeng; Hu, Wenlin; Yang, Jun.
21st International Congress on Sound and Vibration 2014, ICSV 2014. International Institute of Acoustics and Vibrations, 2014. p. 4791-4796 (21st International Congress on Sound and Vibration 2014, ICSV 2014; Vol. 6).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

TY - GEN

T1 - A model of acoustical right-angle bend (With metamaterials)

AU - Bi, Yafeng

AU - Hu, Wenlin

AU - Yang, Jun

PY - 2014

Y1 - 2014

N2 - We propose a two-dimensional fan-shaped model to design an acoustical right-angle bend for sound beam. The quarter circular model is comprised of metamaterials with anistropic refractive index. Due to the gradual decrease of the refractive index from inner to external along the radius of the model, the sound velocity increase with the increase of radius, which leads to a capability of bending a sound propagating beam through a right angle with no reflection loss. The results are validated by simulations in the frequency range of 3500 Hz to 4500 Hz. This model may have potential for practical applications in various areas such as sound absorption in pipeline and detection in industry.

AB - We propose a two-dimensional fan-shaped model to design an acoustical right-angle bend for sound beam. The quarter circular model is comprised of metamaterials with anistropic refractive index. Due to the gradual decrease of the refractive index from inner to external along the radius of the model, the sound velocity increase with the increase of radius, which leads to a capability of bending a sound propagating beam through a right angle with no reflection loss. The results are validated by simulations in the frequency range of 3500 Hz to 4500 Hz. This model may have potential for practical applications in various areas such as sound absorption in pipeline and detection in industry.

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M3 - Conference contribution

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BT - 21st International Congress on Sound and Vibration 2014, ICSV 2014

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ER -

A model of acoustical right-angle bend (With metamaterials)

Abstract

Publication series

Conference

ASJC Scopus Subject Areas

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