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A comprehensive acoustic analysis of a single expansion chamber reactive muffler.

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Title: A comprehensive acoustic analysis of a single expansion chamber reactive muffler.
Authors: Kulkarni, Shravani1 (AUTHOR), Kulkarni, Mahesh1 (AUTHOR) mahesh.kulkarni@mitwpu.edu.in, Hujare, Deepak1 (AUTHOR)
Source: Building Acoustics. Dec2025, Vol. 32 Issue 4, p571-587. 17p.
Subjects: Transfer matrix, Finite element method, Noise control, Acoustic measurements, Acoustic resonators, Automotive engineering
Abstract: This study explores the acoustic performance of a single-expansion-chamber reactive muffler through theoretical, numerical, and experimental methods, focusing on transmission loss as a measure of noise attenuation. Theoretical analysis employs the Transfer Matrix Method (TMM) to model the sound wave behavior by incorporating geometric parameters and fluid acoustic properties. Numerical simulations using the Finite Element Method (FEM) provide insights into the sound pressure distribution and validate theoretical predictions. Experimental testing in a controlled laboratory environment measures the muffler transmission loss and offers a practical benchmark for comparison. The results revealed a strong correlation between the theoretical, numerical, and experimental data, demonstrating the reliability of these methods. This study identifies critical design parameters that influence noise attenuation and provides guidelines for optimizing muffler performance in automotive applications. This integrated approach offers a comprehensive framework for analyzing and improving the acoustic efficiency of reactive mufflers. [ABSTRACT FROM AUTHOR]
Copyright of Building Acoustics is the property of Sage Publications Inc. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: A comprehensive acoustic analysis of a single expansion chamber reactive muffler.
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  Data: <searchLink fieldCode="AR" term="%22Kulkarni%2C+Shravani%22">Kulkarni, Shravani</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Kulkarni%2C+Mahesh%22">Kulkarni, Mahesh</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> mahesh.kulkarni@mitwpu.edu.in</i><br /><searchLink fieldCode="AR" term="%22Hujare%2C+Deepak%22">Hujare, Deepak</searchLink><relatesTo>1</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Building+Acoustics%22">Building Acoustics</searchLink>. Dec2025, Vol. 32 Issue 4, p571-587. 17p.
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– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: This study explores the acoustic performance of a single-expansion-chamber reactive muffler through theoretical, numerical, and experimental methods, focusing on transmission loss as a measure of noise attenuation. Theoretical analysis employs the Transfer Matrix Method (TMM) to model the sound wave behavior by incorporating geometric parameters and fluid acoustic properties. Numerical simulations using the Finite Element Method (FEM) provide insights into the sound pressure distribution and validate theoretical predictions. Experimental testing in a controlled laboratory environment measures the muffler transmission loss and offers a practical benchmark for comparison. The results revealed a strong correlation between the theoretical, numerical, and experimental data, demonstrating the reliability of these methods. This study identifies critical design parameters that influence noise attenuation and provides guidelines for optimizing muffler performance in automotive applications. This integrated approach offers a comprehensive framework for analyzing and improving the acoustic efficiency of reactive mufflers. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Building Acoustics is the property of Sage Publications Inc. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1177/1351010X251364500
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      – Code: eng
        Text: English
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        PageCount: 17
        StartPage: 571
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      – SubjectFull: Transfer matrix
        Type: general
      – SubjectFull: Finite element method
        Type: general
      – SubjectFull: Noise control
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      – SubjectFull: Acoustic measurements
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      – SubjectFull: Acoustic resonators
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      – SubjectFull: Automotive engineering
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      – TitleFull: A comprehensive acoustic analysis of a single expansion chamber reactive muffler.
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            – D: 01
              M: 12
              Text: Dec2025
              Type: published
              Y: 2025
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