Calculation and Analysis of Acoustic Performance of Diesel Engine 3-in-1 after Treatment Device

Zhen Dong Zou; Yan Ni; Zhe Jiang

doi:10.4028/www.scientific.net/AMR.726-731.3119

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 726-731Calculation and Analysis of Acoustic Performance...

Calculation and Analysis of Acoustic Performance of Diesel Engine 3-in-1 after Treatment Device

Abstract:

Taking the 3-in-1 after treatment device of a diesel engine produced by FAW Jiefang Automotive CO., Ltd as an example, the acoustic finite element method of software Virtual.Lab is used to analysis the transmission loss and insertion loss, then analysis the acoustic performance of its substructure. The results show that the heat exchange tube has little effect on acoustic performance of the entire device; The silencer module of multi-cavity structure can significantly improve the performance in low-frequency. Perforated plate and perforated pipe have effect on improving medium-high frequency, and changes of structural parameter affect its acoustic characteristics; The comparison between direct simulation results of insertion loss and the experimental results has a good effect.

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Periodical:

Advanced Materials Research (Volumes 726-731)

Pages:

3119-3122

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.726-731.3119

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Online since:

August 2013

Authors:

Zhen Dong Zou*, Yan Ni, Zhe Jiang

Keywords:

3-in-1 after Treatment Device, Acoustic, Insertion Loss, Muffler, Transmission Loss

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* - Corresponding Author

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