The test and improve of noise on the whole motorcycle

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Journal of Vibration and Shock ›› 2011, Vol. 30 ›› Issue (2) : 263-266.

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The test and improve of noise on the whole motorcycle

ZHANG Yuanyuan;LI Shunming; Miao Xiaodong

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Abstract

Based on the spectral analysis of noise signal and sound-intensity test identifying the noise source on the motorcycle, The result indicates that the exhaust noises of engine are the major reasons in whole motorcycle noise. Using the methods of experiment and FEM, the exhaust muffler’s performance of aerodynamics and acoustic are realized and analyzed, three projects of improved muffler are proposed, and validated by experiment. The past-by noise of motorcycle in improved muffler state can ultimately reduce by 1-2 dB at the most.

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motorcycle / noise / sound intensity / muffler / simulation

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ZHANG Yuanyuan;LI Shunming;Miao Xiaodong. The test and improve of noise on the whole motorcycle[J]. Journal of Vibration and Shock, 2011, 30(2): 263-266