Mathematic Analysis and Performance Simulation for Exhaust Muffler Based on Transmission Loss

Xiao Dong Li; Xin Tan Ma

doi:10.4028/www.scientific.net/AMM.651-653.972

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 651-653Mathematic Analysis and Performance Simulation for...

Mathematic Analysis and Performance Simulation for Exhaust Muffler Based on Transmission Loss

Abstract:

Transmission loss is an important noise reduction parameter of exhaust muffler. Based on the finite element method, transmission loss is calculated, and the influential effect of the fluid is considered in this paper. Through calculation of transmission loss of the single expendable muffler and composite muffler, the results show that expansion ratio affects amplitude of transmission loss, and expansion chamber length affects the attenuation frequency bandwidth. The analysis method and conclusions are instructive to the design parameters of exhaust muffler.

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Periodical:

Applied Mechanics and Materials (Volumes 651-653)

Pages:

972-975

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.651-653.972

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Cite this paper

Online since:

September 2014

Authors:

Xiao Dong Li*, Xin Tan Ma

Keywords:

Exhaust Muffler, Finite Element Method (FEM), Mathematic Analysis, Transmission Loss

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* - Corresponding Author

References

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