- Volume 16 Issue 2
DOI QR Code
Comparison of Track Vibration Characteristics for Domestic Railway Tracks in the Aspect of Rolling Noise
철도 전동 소음의 관점에서 해석한 국내 철도의 진동 특성 비교
- Ryue, Jungsoo (School of Naval Architecture and Ocean Engineering, University of Ulsan) ;
- Jang, Seungho (Korea Railroad Research Institute)
- Received : 2012.10.19
- Accepted : 2013.02.18
- Published : 2013.04.28
An important source of noise from railways is rolling noise caused by wheel and rail vibrations induced by acoustic roughness at the wheel-rail contact. The main contributors to rolling noise are the sleepers, rail, and wheels. In order to analyze and predict rolling noise, it is necessary to understand the vibrating behaviors of railway tracks, as well as of the wheels. In the present paper, theoretical modeling methods for railway track are reviewed in terms of rolling noise; these methods are applied for the three representative types of domestic railway tracks operated: the conventional ballasted track, KTX ballasted track and KTX concrete track. The characteristics of waves propagating along rails are investigated and compared among the types of tracks. The tracks are modeled as discretely supported Timoshenko beams and are compared in terms of the averaged squared amplitude of velocity, which is directly related to the sound radiation from the rails.
Grant : 400km/h 고속철도 소음원 모델 구축 및 소음원 기여도 분석 기술 개발
Supported by : 국토해양부
- D.J. Thompson (2009) Railway noise and vibration: Mechanisms, modeling and means of control, Elsevier Ltd, Philidelphia.
- D.J. Thompson, P. Fodiman and H. Mahe (1996) Experimental validation of the TWINS prediction program, Part 2: results, Journal of Sound and Vibration, 193, pp. 137-147. https://doi.org/10.1006/jsvi.1996.0253
- S.C. Yang, S.Y. Jang, E. Kim (2011) Determination of upper limit of rail pad stiffness for ballasted and concrete track of high-speed railway considering running safety, Journal of the Korean Society for Railway, 14(6), pp. 526-534. https://doi.org/10.7782/JKSR.2011.14.6.526
- K. Knothe, S.L. Grassie (1993) Modelling of railway track and vehicle/track interaction at high frequencies, Vehicle System Dynamics, 22, pp. 209-262. https://doi.org/10.1080/00423119308969027
- D.J. Thompson, N. Vincent (1995) Track dynamic behavior at high frequencies. Part 1: theoretical models and laboratory measurements, Vehicle System Dynamics, 24, pp. 86-99. https://doi.org/10.1080/00423119508969617
- D.J. Thompson (1993) Wheel-rail noise generation. Par III: Rail vibration, Journal of Sound and Vibration, 161, pp. 421- 446. https://doi.org/10.1006/jsvi.1993.1084
- L. Gavric (1995) Computation of propagative waves in free rail using a finite element technique, Journal of Sound and Vibration, 183(3), pp. 531-543.
- N. Vincent, D.J. Thompson (1995) Track dynamic behavior at high frequencies. Part 2: experimental results and comparisons with theory, Vehicle System Dynamics, 24, pp. 100-114. https://doi.org/10.1080/00423119508969618
- M.A. Heckl (2002) Coupled waves on a periodically supported Timoshenko beam, Journal of Sound and Vibration, 252, pp. 849-882. https://doi.org/10.1006/jsvi.2001.3823
- W.H. Yu (2001) Design optimization study on bogie mechanism, KRRI-Research-01-51, KRRI, Research report of Korea Railroad Research Institute.
- Characteristics of Vibration and Sound Radiated from Rails of Concrete Slab Tracks for Domestic High Speed Trains vol.23, pp.7, 2013, https://doi.org/10.5050/KSNVE.2013.23.7.605
- Theoretical Analysis on the Array Microphone Measurement for Noise from Rails vol.33, pp.4, 2014, https://doi.org/10.7776/ASK.2014.33.4.238