Experimental study on the characteristics of noise sources in high-speed railway
China Academy of Railway Science
Tuesday 2 june, 2015, 17:00 - 17:20
0.1 London (90)
In the noise control practice of high-speed railway, the basic characteristics of noise source intensity should be understood. Studied at the characteristics of noise source intensity of high-speed railway, this paper has obtained the frequency characteristics, and achieved its basic rules with speed change. The results showed that: (1)The peak frequency of noise source intensity of high- speed railway appeared at low frequency, and it showed wideband characteristics; (2) With the increase of speed, growth coefficient of radiation noise level is 42 ~ 46.
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