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Acoustic Matching Simulation of Muffler with Hybrid Approach
Technical Paper
2011-01-1516
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Different limitations exist in the practical application of one-dimensional and three-dimensional methods on the acoustic simulation of muffler respectively. Thus, a hybrid one/three-dimensional approach is developed in present paper to carry out the acoustic simulation of muffler matching with the engine. The acoustic source characteristics of engine are computed with one-dimensional methods, and acoustic four pole parameters of muffler are computed with three-dimensional methods, respectively. And, the insertion loss of muffler is finally calculated. The insertion loss of a muffler equipped with Selective Catalytic Reduction (SCR) in a heavy duty vehicle is simulated. The numerical results agree well with the experimental results, which verifies the reliability and accuracy of the present approach.
Authors
Citation
Zheng, S., Kang, Z., and Lian, X., "Acoustic Matching Simulation of Muffler with Hybrid Approach," SAE Technical Paper 2011-01-1516, 2011, https://doi.org/10.4271/2011-01-1516.Also In
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