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.
Acoustic Analysis of Exhaust Muffler of a 4-Stroke Engine
Sae International Journal of Passenger Cars. Mechanical Systems
Sae Int. J. Passeng. Cars – Mech. Syst
Powertrains, Fuels and Lubricants Meeting ; 2009
Sae International Journal of Passenger Cars - Mechanical Systems ; 2 , 1 ; 1303-1311
2009-06-15
9 pages
Conference paper
English
Acoustic analysis of exhaust muffler of a 4-stroke engine
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