Investigation on a Semi-Active Silencing Device for the Exhaust Noise

Chang Chun Yin; Xue Guang Liu; Ye Wang; Min Zhu

doi:10.4028/www.scientific.net/AMR.317-319.2249

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 317-319Investigation on a Semi-Active Silencing Device...

Investigation on a Semi-Active Silencing Device for the Exhaust Noise

Abstract:

This paper, according to the principle of the Hershcel-Quincke tube, presents a semi-active silencing device which can effectively control the fundamental frequency exhaust noise of the internal combustion engine. This device can choose the proper pipeline by using the valves to achieve semi-active control of low-frequency noise of the internal combustion engine. Taking the 4102BG-type diesel engine as the research object, we designed a bypass duct silencer to control its fundamental frequency exhaust noise, and then simulation and steady-state control performance testing also have been done. The results show that the bypass duct silencer can get 6~20dB reduction of the fundamental frequency exhaust noise in the steady-state operating conditions, and the total SPL has also decreased.

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Periodical:

Advanced Materials Research (Volumes 317-319)

Pages:

2249-2253

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.317-319.2249

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Online since:

August 2011

Authors:

Chang Chun Yin, Xue Guang Liu, Ye Wang, Min Zhu

Keywords:

Bypass Duct Silencer, Fundamental Frequency Exhaust Noise, Semi-Active Control

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References

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DOI: 10.1016/s0022-460x(02)01378-0

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