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Design and Analysis of a Expansion Chamber Mufflers

Bhat, Chandrashekhar and Sharma , S S and Jagannath, K and Mohan, N S and Sathisha, S G (2010) Design and Analysis of a Expansion Chamber Mufflers. World Journal of Engineering, 7 (3). pp. 117-118. ISSN 1708-5284

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Abstract

Internal combustion engines are fitted with exhaust muffler to attenuate the pressure pulsation generated during combustion process. Effective prediction of sound pressure loss of hot gases as it flows through the muffler greatly helps in the design of mufflers. An attempt has been made here to predict the transmission loss through modal analysis, followed by acoustic analysis using finite element analysis technique for three different configurations of mufflers under different fixing conditions. It was found that three-chamber muffler provides higher attenuation of sound pressure compare to one and two chamber mufflers. And, fixing the muffler at the center enhances sound pressure attenuation.

Item Type: Article
Uncontrolled Keywords: Muffler, sound, transmission loss
Subjects: Engineering > MIT Manipal > Mechanical and Manufacturing
Depositing User: MIT Library
Date Deposited: 27 Feb 2013 10:40
Last Modified: 27 Feb 2013 10:40
URI: http://eprints.manipal.edu/id/eprint/78770

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