Summary
Two effective railway noise reduction technologies using a high-performance damping material have been developed. One is a rail noise reduction system for reducing rolling noise using a combination of damping material and sound isolation and absorption technologies. The other one is an application of a high-performance damping material on the surface of web within a railway bridge structure as a means for reducing structure noise. An actual track-based field test for demonstrating these technologies was performed using a track of Austrian Federal Railways. As a result, the rail noise reduction system was found effective for reducing noise by 2 to 4 dB in a normal section (ballast track) and for a bridge section the combined use of the rail noise reduction system and damping material reduced noise by 2 to 4 dB of which the rail noise reduction system provided 0.5 to 3.5 dB, and the damping material on the bridge web contributed 0 to 1.5 dB.
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References
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Koller, G., Kalivoda, M.T., Jaksch, M., Muncke, M., Oguchi, T., Matsuda, Y. (2012). Railway Noise Reduction Technology Using a Damping Material. In: Maeda, T., et al. Noise and Vibration Mitigation for Rail Transportation Systems. Notes on Numerical Fluid Mechanics and Multidisciplinary Design, vol 118. Springer, Tokyo. https://doi.org/10.1007/978-4-431-53927-8_19
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DOI: https://doi.org/10.1007/978-4-431-53927-8_19
Publisher Name: Springer, Tokyo
Print ISBN: 978-4-431-53926-1
Online ISBN: 978-4-431-53927-8
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