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http://dx.doi.org/10.7782/JKSR.2011.14.3.211

A Study to Estimate the Emitted Sound Power from the Rolling Stock  

Lee, Young-Yeob (한국철도공사 연구원)
Kim, Jae-Chul (한국철도기술연구원 차륜궤도연구실)
Lee, Hi-Sung (서울과학기술대학교 철도전문대학원 철도차량시스템공학과 한국도시철도연구소)
Publication Information
Journal of the Korean Society for Railway / v.14, no.3, 2011 , pp. 211-215 More about this Journal
Abstract
Generally, sound power is one of the most significant factors to predict and assess noise from sound sources. However, many researchers developed indirect methods to calculate the sound power with noise level because it is impossible to measure sound power directly while a train is running. In this paper, we propose a method to estimate sound power generated due to wheel/rail interaction and propulsive equipment from the measurement of noise emitted from rolling stocks and verify the estimation method by comparing with the other sound power estimation formula. We also analyze the sound power of rolling stocks which are operating in domestic lines such as EMU, Mukoonghwa, KTX using the method proposed in this paper.
Keywords
Railway noise; Sound power; Rolling noise;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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