Publisher : The Korea Academia-Industrial cooperation Society
DOI : 10.5762/KAIS.2015.16.11.7941
Title & Authors
Measuring Technique For Acoustic Roughness of Rail Surface With Homogeneous Displacement Sensors Jeong, Wootae; Jang, Seungho; Kho, Hyo-In;
Rolling noises during train operation are caused by vibration excited from irregularities of surface roughness between wheel and rail. Therefore, a proper measurement and analysis techniques of acoustic roughness between wheel and rail surface are required for transmission, prediction, and analysis of the train rolling noise. However, since current measuring devices and methods use trolley-based manual handling devices, the measurements induce unstable measuring speed and vibrational interface that increases errors and disturbances. In this paper, a new automatic rail surface exploring platform with a speed controller has been developed for improving measurement accuracy and reducing inconsistency of measurements. In addition, we propose a data integration method of the rail surface roughness with multiple homogeneous displacement sensors and verified the accuracy of the integrated data through standard test-bed railway track investigation.
T. Kitagawa, "The Influence of Wheel and Track Parameters on Rolling Noise", QR of RTRI, Vol. 50, No. 1, pp. 32-38, 2009. DOI: http://dx.doi.org/10.2219/rtriqr.50.32
D. J. Thompson, "Railway noise and vibration - Mechanisms, modelling and means of control, 518pp, Elsevier, 2009.
C. J. C. Jones and D. J. Thompson, "A review of the modelling of wheel/rail noise generation," Journal of Sound and Vibration, Vol. 231, No. 3, pp. 519-536, 2000. DOI: http://dx.doi.org/10.1006/isvi.1999.2542
D. J. Thompson, "On the relationship between wheel and rail surface roughness and rolling noise," Journal of Sound and Vibration, Vol. 193, No. 1, pp. 149-160, 1996. DOI: http://dx.doi.org/10.1006/isvi.1996.0254
S. L. Grassie, "Rail Irregularities, corrugation and acoustic roughness: characteristics, significance and effects of reprofiling," Journal of Rail and Rapid Transit, 226(5), pp. 542-557. 2012. DOI: http://dx.doi.org/10.1177/0954409712443492
S. L. Grassie, M. J. Saxon and J. D. Smith, "Measurement of Longitudinal Rail Irregularities and Criteria for Acceptable Grinding," 227(5), pp. 949-964, 1999.
G. Desanghere and T. Vanhonacker, "Development and Validation of a rail surface analyse for accurate quantification and evaluation of rail corrugation and track work acceptance after acoustic grinding,', Inter-Noise 2007, Istanbul, Turkey, August, 2007
R. J. Diehl and P. Holm, "Roughness Measurement -Have the necessities changed?," Journal of Sound and Vibration, 293, pp. 777-783, 2006. DOI: http://dx.doi.org/10.1016Zi.isv.2005.08.046
W. Jeong, S. Jeon, S. Jang, and H. Koh, "Accuracy Improvement in measuring rail surface roughness with multiple displacement sensors," Proc. of Conference on Institute of Control, Robotics and Systems, Spring, 2015.
S. Jang, W. Jeong, H. Koh, and J. Hong, "Study on the acoustic roughness of rail for controling railway noise," Proc. of the Korean Society for Noise and Vibration Engineering Conference, Spring, 2014.