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Civil-Comp Proceedings
ISSN 1759-3433 CCP: 104
PROCEEDINGS OF THE SECOND INTERNATIONAL CONFERENCE ON RAILWAY TECHNOLOGY: RESEARCH, DEVELOPMENT AND MAINTENANCE Edited by: J. Pombo
Paper 285
Noise Transmission Mode in the Carbody of High-Speed Trains J.Q. Guo1,2, J.M. Ge1, Z.J. Sun2, X.J. Deng2, S.Q. Liu2 and Y.J. Zhao2
1TongJi University, Shanghai, China
J.Q. Guo, J.M. Ge, Z.J. Sun, X.J. Deng, S.Q. Liu, Y.J. Zhao, "Noise Transmission Mode in the Carbody of High-Speed Trains", in J. Pombo, (Editor), "Proceedings of the Second International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Stirlingshire, UK, Paper 285, 2014. doi:10.4203/ccp.104.285
Keywords: noise transmission mode, sound pressure level, vibration level, bending vibration, high-speed trains.
Summary
In order to study the noise transmission mode in a carbody of a high-speed train, this
paper provides the analysis of the relationship of sound pressure level and vibration
level in a plane sound wave. A laboratory test benchmark to evaluate the
relationship is established. Concentrated force load and sound load have been used
in the experiment. The "SPL-VL" formulas in every one-third octaves are found
under the force load. The sound load test is used to evaluate the formulas. The
results indicate that bending vibration is the main transmission mode of the noise in
the special multilayer thin-wall carbody of high-speed trains. The data from
operating trains validates this conclusion below 315 Hz.
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