Effect of voids on the acoustics of perforated dissipative silencers

A. Selamet; M. B. Xu; I. J. Lee; N. T. Huff

doi:10.1504/IJVNV.2006.012785

Effect of voids on the acoustics of perforated dissipative silencers

A. Selamet^*
, M. B. Xu
, I. J. Lee
, N. T. Huff

^*Corresponding author for this work

Department of Mechanical Engineering

Ohio State University
Owens Corning

Research output: Contribution to journal › Journal article › peer-review

11 Scopus citations

Abstract

The effect of voids on the acoustic performance of a perforated dissipative expansion chamber is investigated by axially staggering filled/empty segments external to the perforations. A two-dimensional analytical approach is used to determine the Transmission Loss (TL) through pressure and velocity matching at the boundaries of the inlet/outlet ducts, rigid end-plates, and the interfaces between the fibrous material and void. The analytical results are then compared with the experiments and numerical predictions for one specific configuration, showing a reasonable agreement. The effects of void length and location, and the properties of fibrous material on the acoustic attenuation of this perforated dissipative expansion chamber are also discussed

Original language	English
Pages (from-to)	357-372
Number of pages	16
Journal	International Journal of Vehicle Noise and Vibration
Volume	2
Issue number	4
DOIs	https://doi.org/10.1504/IJVNV.2006.012785
State	Published - 2006

Keywords

voids effects in perforated dissipative silencers

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10.1504/IJVNV.2006.012785

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title = "Effect of voids on the acoustics of perforated dissipative silencers",

abstract = "The effect of voids on the acoustic performance of a perforated dissipative expansion chamber is investigated by axially staggering filled/empty segments external to the perforations. A two-dimensional analytical approach is used to determine the Transmission Loss (TL) through pressure and velocity matching at the boundaries of the inlet/outlet ducts, rigid end-plates, and the interfaces between the fibrous material and void. The analytical results are then compared with the experiments and numerical predictions for one specific configuration, showing a reasonable agreement. The effects of void length and location, and the properties of fibrous material on the acoustic attenuation of this perforated dissipative expansion chamber are also discussed",

keywords = "voids effects in perforated dissipative silencers",

author = "A. Selamet and Xu, \{M. B.\} and Lee, \{I. J.\} and Huff, \{N. T.\}",

year = "2006",

doi = "10.1504/IJVNV.2006.012785",

language = "English",

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pages = "357--372",

journal = "International Journal of Vehicle Noise and Vibration",

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TY - JOUR

T1 - Effect of voids on the acoustics of perforated dissipative silencers

AU - Selamet, A.

AU - Xu, M. B.

AU - Lee, I. J.

AU - Huff, N. T.

PY - 2006

Y1 - 2006

N2 - The effect of voids on the acoustic performance of a perforated dissipative expansion chamber is investigated by axially staggering filled/empty segments external to the perforations. A two-dimensional analytical approach is used to determine the Transmission Loss (TL) through pressure and velocity matching at the boundaries of the inlet/outlet ducts, rigid end-plates, and the interfaces between the fibrous material and void. The analytical results are then compared with the experiments and numerical predictions for one specific configuration, showing a reasonable agreement. The effects of void length and location, and the properties of fibrous material on the acoustic attenuation of this perforated dissipative expansion chamber are also discussed

AB - The effect of voids on the acoustic performance of a perforated dissipative expansion chamber is investigated by axially staggering filled/empty segments external to the perforations. A two-dimensional analytical approach is used to determine the Transmission Loss (TL) through pressure and velocity matching at the boundaries of the inlet/outlet ducts, rigid end-plates, and the interfaces between the fibrous material and void. The analytical results are then compared with the experiments and numerical predictions for one specific configuration, showing a reasonable agreement. The effects of void length and location, and the properties of fibrous material on the acoustic attenuation of this perforated dissipative expansion chamber are also discussed

KW - voids effects in perforated dissipative silencers

UR - https://www.scopus.com/pages/publications/70749152584

U2 - 10.1504/IJVNV.2006.012785

DO - 10.1504/IJVNV.2006.012785

M3 - Journal article

AN - SCOPUS:70749152584

SN - 1479-1471

VL - 2

SP - 357

EP - 372

JO - International Journal of Vehicle Noise and Vibration

JF - International Journal of Vehicle Noise and Vibration

IS - 4

ER -

Effect of voids on the acoustics of perforated dissipative silencers

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Keywords

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