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A Study on Characteristics of Noise Propagation for Railway  

구동회 (한국철도기술연구원)
김재철 (한국철도기술연구)
박태원 (아주대학교 기계공학과)
Publication Information
Journal of the Korean Society for Railway / v.5, no.1, 2002 , pp. 26-31 More about this Journal
Abstract
The more sophisticated patterns of propagation model is presented in this paper, which includes three different source characteristics (spherical, cosine and dipole). The spherical, cosine and dipole radiation characteristics compared, and sound event level and the maximum sound level are calculated by experiment and calculation. It is shown that patterns of propagation have dipole characteristics for low speed range (below about 150Km/h) at electric multiple system. We know that push-pull high speed system has cosine characteristics of noise propagation at low speed range (below about 200Km/h).
Keywords
Noise Propagation Characteristics; Sound Intensity; Radiation coefficient; KTX; EMU;
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