Transmission loss prediction for silencers by using the combination of boundary element method and numerical collocation approach

Liang Yang; Zhen Lin Ji; T. W. Wu

doi:10.13465/j.cnki.jvs.2016.02.025

Transmission loss prediction for silencers by using the combination of boundary element method and numerical collocation approach

Liang Yang, Zhen Lin Ji, T. W. Wu

Mechanical and Aerospace Engineering

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

A technique combining the boundary element method (BEM) and numerical collocation approach was proposed to calculate the transmission loss of silencers with arbitrary cross-section. The silencer was divided into several substructures. The BEM and the numerical collocation approach were employed combinedly to evaluate the impedance matrices of substructures with non-regular cross-section and axially uniform cross-section respectively, and then the impedance matrices for all substructures were achieved. The transmission loss predictions of several silencers agree well with the results by BEM. The computational efficiency was analyzed and compared with that of the traditional substructure method, the combined technique may save computational time efficiently.

Original language	English
Pages (from-to)	153-157 and 206
Journal	Zhendong yu Chongji/Journal of Vibration and Shock
Volume	35
Issue number	2
DOIs	https://doi.org/10.13465/j.cnki.jvs.2016.02.025
State	Published - Jan 28 2016

Bibliographical note

Publisher Copyright:
© 2016, Chinese Vibration Engineering Society. All right reserved.

Keywords

Boundary element method
Numerical collocation approach
Silencer
Transmission loss

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
Acoustics and Ultrasonics

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10.13465/j.cnki.jvs.2016.02.025

Cite this

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title = "Transmission loss prediction for silencers by using the combination of boundary element method and numerical collocation approach",

abstract = "A technique combining the boundary element method (BEM) and numerical collocation approach was proposed to calculate the transmission loss of silencers with arbitrary cross-section. The silencer was divided into several substructures. The BEM and the numerical collocation approach were employed combinedly to evaluate the impedance matrices of substructures with non-regular cross-section and axially uniform cross-section respectively, and then the impedance matrices for all substructures were achieved. The transmission loss predictions of several silencers agree well with the results by BEM. The computational efficiency was analyzed and compared with that of the traditional substructure method, the combined technique may save computational time efficiently.",

keywords = "Boundary element method, Numerical collocation approach, Silencer, Transmission loss",

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AU - Yang, Liang

AU - Ji, Zhen Lin

AU - Wu, T. W.

PY - 2016/1/28

Y1 - 2016/1/28

N2 - A technique combining the boundary element method (BEM) and numerical collocation approach was proposed to calculate the transmission loss of silencers with arbitrary cross-section. The silencer was divided into several substructures. The BEM and the numerical collocation approach were employed combinedly to evaluate the impedance matrices of substructures with non-regular cross-section and axially uniform cross-section respectively, and then the impedance matrices for all substructures were achieved. The transmission loss predictions of several silencers agree well with the results by BEM. The computational efficiency was analyzed and compared with that of the traditional substructure method, the combined technique may save computational time efficiently.

AB - A technique combining the boundary element method (BEM) and numerical collocation approach was proposed to calculate the transmission loss of silencers with arbitrary cross-section. The silencer was divided into several substructures. The BEM and the numerical collocation approach were employed combinedly to evaluate the impedance matrices of substructures with non-regular cross-section and axially uniform cross-section respectively, and then the impedance matrices for all substructures were achieved. The transmission loss predictions of several silencers agree well with the results by BEM. The computational efficiency was analyzed and compared with that of the traditional substructure method, the combined technique may save computational time efficiently.

KW - Boundary element method

KW - Numerical collocation approach

KW - Silencer

KW - Transmission loss

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SP - 153-157 and 206

JO - Zhendong yu Chongji/Journal of Vibration and Shock

JF - Zhendong yu Chongji/Journal of Vibration and Shock

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ER -

Transmission loss prediction for silencers by using the combination of boundary element method and numerical collocation approach

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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