Experimental study on the characteristics of noise sources in high-speed railway
Regular paper
China Academy of Railway Science
Tuesday 2 june, 2015, 17:00 - 17:20
0.1 London (90)
Abstract:
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.