A numerical study of sound-structure interaction in a duct structure by the acoustical wave propagator method

Shuzhi Peng; Li Cheng

A numerical study of sound-structure interaction in a duct structure by the acoustical wave propagator method

Shuzhi Peng, Li Cheng

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

Abstract

The pseudospectral time-domain method has long been used to describe the acoustical wave propagation. However, due to the limitation and difficulties of the FFT, the dispersion error is hard to be avoided and the computational accuracy greatly decreases after the waves arrive at the non-periodic boundary. To resolve this problem, the Lagrange-Chebyshev interpolation polynomials are used to replace the previous FFT. In addition, a mapping method is introduced to overcome the additional time-step restriction. In this paper, several issues are addressed to explore its numerical performances: the numerical accuracy, computational efficiency and stability of this proposed method.

Original language	English
Title of host publication	14th International Congress on Sound and Vibration 2007, ICSV 2007
Pages	180-187
Number of pages	8
Volume	1
Publication status	Published - 1 Dec 2007
Event	14th International Congress on Sound and Vibration 2007, ICSV 2007 - Cairns, QLD, Australia Duration: 9 Jul 2007 → 12 Jul 2007

Conference

Conference	14th International Congress on Sound and Vibration 2007, ICSV 2007
Country/Territory	Australia
City	Cairns, QLD
Period	9/07/07 → 12/07/07

ASJC Scopus subject areas

Acoustics and Ultrasonics

Cite this

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title = "A numerical study of sound-structure interaction in a duct structure by the acoustical wave propagator method",

abstract = "The pseudospectral time-domain method has long been used to describe the acoustical wave propagation. However, due to the limitation and difficulties of the FFT, the dispersion error is hard to be avoided and the computational accuracy greatly decreases after the waves arrive at the non-periodic boundary. To resolve this problem, the Lagrange-Chebyshev interpolation polynomials are used to replace the previous FFT. In addition, a mapping method is introduced to overcome the additional time-step restriction. In this paper, several issues are addressed to explore its numerical performances: the numerical accuracy, computational efficiency and stability of this proposed method.",

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language = "English",

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A numerical study of sound-structure interaction in a duct structure by the acoustical wave propagator method. / Peng, Shuzhi; Cheng, Li.

14th International Congress on Sound and Vibration 2007, ICSV 2007. Vol. 1 2007. p. 180-187.

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

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AU - Cheng, Li

PY - 2007/12/1

Y1 - 2007/12/1

N2 - The pseudospectral time-domain method has long been used to describe the acoustical wave propagation. However, due to the limitation and difficulties of the FFT, the dispersion error is hard to be avoided and the computational accuracy greatly decreases after the waves arrive at the non-periodic boundary. To resolve this problem, the Lagrange-Chebyshev interpolation polynomials are used to replace the previous FFT. In addition, a mapping method is introduced to overcome the additional time-step restriction. In this paper, several issues are addressed to explore its numerical performances: the numerical accuracy, computational efficiency and stability of this proposed method.

AB - The pseudospectral time-domain method has long been used to describe the acoustical wave propagation. However, due to the limitation and difficulties of the FFT, the dispersion error is hard to be avoided and the computational accuracy greatly decreases after the waves arrive at the non-periodic boundary. To resolve this problem, the Lagrange-Chebyshev interpolation polynomials are used to replace the previous FFT. In addition, a mapping method is introduced to overcome the additional time-step restriction. In this paper, several issues are addressed to explore its numerical performances: the numerical accuracy, computational efficiency and stability of this proposed method.

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M3 - Conference article published in proceeding or book

SN - 9781627480000

VL - 1

SP - 180

EP - 187

BT - 14th International Congress on Sound and Vibration 2007, ICSV 2007

T2 - 14th International Congress on Sound and Vibration 2007, ICSV 2007

Y2 - 9 July 2007 through 12 July 2007

ER -

A numerical study of sound-structure interaction in a duct structure by the acoustical wave propagator method

Abstract

Conference

ASJC Scopus subject areas

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