Summary
A finite element model of the railway track with a rail absorber is proposed for investigating the effects of the absorber’s multiple motions on the dynamic behavior of the track. The rail vibration and radiation due to a roughness excitation are calculated with the use of the absorber. The calculation results are compared with those of the beam-spring model. The results show that the radiation efficiency of the rail with the absorber is significantly reduced in the frequency range 300-1000 Hz. The noise reduction calculated by the finite element model is less than that of the beam-spring model in the frequency region of 400-—1000 Hz due to the transversal rotation of the absorber. The rail-radiated noise can be reduced by about 7.1 dB(A) using the rail absorber.
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References
Thompson, D.J., Jones, C.J.C., Waters, T.P., et al.: A tuned damping device for reducing noise from railway track. Applied Acoustics 68, 43–57 (2007)
Wu, T.X.: On the railway track dynamics with rail vibration absorber for noise reduction. Journal of Sound and Vibration 309, 739–755 (2008)
Liu, H.P., Wu, T.X., Li, Z.G.: Theoretical modelling and effectiveness study of rail vibration absorber for noise control. Journal of Sound and Vibration 323, 594–608 (2009)
Wu, T.X., Liu, H.P.: Reducing the rail component of rolling noise by vibration absorber: theoretical prediction. Journal of Rail and Rapid Transit 223, 473–483 (2009)
Thompson, D.J., Jones, C.J.C., Turner, N.: Investigation into the validity of two-dimensional models for sound radiation from wave in rails. Journal of Acoustical Society of America 113, 1965–1974 (2003)
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Liu, H.P., Wu, T.X. (2012). Modelling and Performance Analysis of Rail Vibration Absorber by FE and BE Methods. 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_16
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DOI: https://doi.org/10.1007/978-4-431-53927-8_16
Publisher Name: Springer, Tokyo
Print ISBN: 978-4-431-53926-1
Online ISBN: 978-4-431-53927-8
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