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SAE

SAE 2009-01-1980 : 2009

Acoustic Analysis of Exhaust Muffler of a 4-Stroke Engine

Standard Details

A one-dimensional analysis was performed to analyze a three-pass muffler with perforated tubes for Transmission Loss, using numerical decoupling approach. Effect of mean flow on transmission loss inside the muffler was studied. To account for the three-dimensional nature of acoustic waves at higher frequencies, a three dimensional finite element analysis was done using SYSNOISE. The Transmission loss results of the three-dimensional analysis were compared with those of one-dimensional analysis for no flow case and shown to agree reasonably for lower frequency range.

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General Information

Status : ACTIVE
Standard Type: Main
Document No: SAE 2009-01-1980 : 2009
Document Year: 2009

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ACTIVE
SAE 2009-01-1980 : 2009
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