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Three-pass Perforated Tube Muffler with End-resonator

Journal Article
2011-01-1529
ISSN: 1946-3995, e-ISSN: 1946-4002
DOI: https://doi.org/10.4271/2011-01-1529
Published May 17, 2011 by SAE International in United States
Three-pass Perforated Tube Muffler with End-resonator
Sector:
Citation: Ji, Z. and Fang, Z., "Three-pass Perforated Tube Muffler with End-resonator," SAE Int. J. Passeng. Cars – Mech. Syst. 4(2):989-999, 2011, https://doi.org/10.4271/2011-01-1529.
Language: English

Abstract:

The one-dimensional analytical approach, three-dimensional finite element method (FEM) and boundary element method (BEM) are developed to predict and analyze the acoustic attenuation performance of three-pass perforated tube muffler with end-resonator. For an elliptical muffler, the predictions of transmission loss from the FEM and BEM agree well each other throughout the frequency range of interest, while the one-dimensional analytical solution shows a reasonable agreement with the numerical predictions at lower frequencies and deviates at higher frequencies. The FEM is then used to investigate the effects of geometrical parameters and internal structure on the acoustic attenuation performance of three-pass perforated tube muffler with end-resonator.

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