Analysis of the Acoustic Performance of Automotive Exhaust Muffler and Optimization of its Structure

Ming Yi Zhu; Qing Liu

doi:10.4028/www.scientific.net/KEM.474-476.553

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HomeKey Engineering MaterialsKey Engineering Materials Vols. 474-476Analysis of the Acoustic Performance of Automotive...

Analysis of the Acoustic Performance of Automotive Exhaust Muffler and Optimization of its Structure

Abstract:

The noise of exhaust muffler is one of the key factors of the noise of the whole car. As a key member in reducing the exhaust noise, its performance directly influence the smoothness of the car. By establishment of simulation model of coupling of engine working process and muffler the plug-in loss and pressure loss are obtained. The result of simulation calculation is basically the same as that of actual test. The measures to optimize the structure of the muffler proposed based on the study have achieved relatively satisfactory effect.

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Periodical:

Key Engineering Materials (Volumes 474-476)

Pages:

553-558

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.474-476.553

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Online since:

April 2011

Authors:

Ming Yi Zhu, Qing Liu

Keywords:

Exhaust Muffler, Exhaust Noise, GT-Power, Optimization of Structure

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References

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