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A Study on the Reduction of Exhaust Noise by Using Partition and Offset in a Multi - Chamber Muffler with Perforated Tube
Technical Paper
912516
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English
Abstract
The parameters which affect the performance of a silencer system for the reduction of engine exhaust noise are too many to achieve optimum design of the silencer.
It is, therefore, required to use compiled design data or designers' experience to design the new muffler system. On the other hand, during the past decades, the analytic and numerical methods which can fairly well predict the performance of silencers with arbitrary geometries, temperature variations, and mean flow have been developed. In this paper, these techniques which enabled us to cut down the design steps and development time of silencers are implemented, and their practical applications and the gain we obtained are shown.
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Authors
Citation
Kim, Y. and Eom, H., "A Study on the Reduction of Exhaust Noise by Using Partition and Offset in a Multi - Chamber Muffler with Perforated Tube," SAE Technical Paper 912516, 1991.Also In
References
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- Kim Y. H. Choi, J. W. General Solution of Acoustic Wave Equation for Circular Reversing Chamber with Temperature Gradient J.of Vibration and Acoustics, Trans. of the ASME 1991
- Jayaraman Krishnamurthy Yam, Kit Decoupling Approach to Modeling Perforated Tube Muffler Components J. Acoust. Soc. Am. 69 2 Feb. 1981
- Lamancusa, J.S. The Transmission Loss of Double Expansion Chamber Muffler with Unequaled Size Chambers Applied Acoustics 24 1988 15 32
- Eriksson, L. J. Higher Order Mode Effects in Circular Ducts and Expansion Chambers J. Acoust. Soc. Am. 68 2 Aug. 1980
- Eriksson, L. J. Effect of Inlet/Outlet Location on Higher Order Modes in Silencers J. Acoust. Soc. Am. 72 4 October 1982
- Munjal, M. L. Acoustics of Ducts and Mufflers, JOHN WILEY & SONS 1987