Acoustic Analysis of Exhaust Muffler of a 4-Stroke Engine

Document Number: 2009-01-1980

Date Published: June 2009

Author(s):
Abhishek Vishwakarma

Abstract:
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.

File Size: 712K
Product Status: In Stock

Included in: V118-6

See other papers presented at Powertrains, Fuels and Lubricants Meeting, June 2009, Florence, ITALY, Session: NVH

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