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Abstract: Installation of rail vibration dampers (rail dampers for short) onto rails between sleepers is one of the measures to control rail noise generation and roughness growth. Amid the rapid expansion of high-speed and underground railway networks in China, many suppliers are actively marketing and promoting their products, often giving confusing information. In this paper, a parametric study is used to investigate the effect of rail dampers on the dynamical behavior of a Chinese high-speed railway track. The Fourier transform-based method developed for analyzing dynamics of a railway track as an infinitely long periodic structure, with or without rail dampers, is applied in the investigation. It is hoped that results in this paper can help develop the understanding of the working mechanism of rail dampers, and provide useful information for product design and application.

This paper investigates the effect of rail dampers on the dynamical behavior of high speed railway track. The Fourier transform-based method is applied to solve the motion equations. The dispersion curves of track, vibration decay rates and vibration energy of both original track model and of the track model with rail dampers were studied. This research does help readers to understand more about rail damper with the parametric study. And in the meantime, the dynamic proper of track under a moving load was analyzed. This research is quite meaningful.

钢轨减振器对高铁轨道结构动力学特性的影响研究

[1]Correa, N., Vadillo, E.G., Santamaria, J., et al., 2012. A rational fraction polynomials model to study vertical dynamic wheel-rail interaction. Journal of Sound and Vibration, 331(8):1844-1858.

[2]Croft, B.E., Jones, C.J.C., Thompson, D.J., 2009. Modelling the effect of rail dampers on wheel-rail interaction forces and roughness growth rates. Journal of Sound and Vibration, 323(1-2):17-32.

[3]Han, J., Zhao, G.T., Xiao, X.B., et al., 2015. Effect of softening of cement asphalt mortar on vehicle operation safety and track dynamics. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 16(12):976-986.

[4]Jin, X.S., 2014. Key problems faced in high-speed train operation. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 15(12):936-945.

[5]Liu, H.P., Wu, T.X., Li, Z.G., 2009. Theoretical modelling and effectiveness study of rail vibration absorber for noise control. Journal of Sound and Vibration, 323(3-5):594-608.

[6]Maes, J., Sol, H., 2003. A double tuned rail damper—increased damping at the two first pinned-pinned frequencies. Journal of Sound and Vibration, 267(3):721-737.

[7]Mazilu, T., 2007. Green’s functions for analysis of dynamic response of wheel/rail to vertical excitation. Journal of Sound and Vibration, 306(1-2):31-58.

[8]Mazilu, T., Dumitriu, M., Tudorache, C., et al., 2011. Using the Green’s functions method to study wheelset/ballasted track vertical interaction. Mathematical and Computer Modelling, 54(1-2):261-279.

[9]Mead, D.J., 1996. Wave propagation in continuous periodic structures: research contributions from Southampton. Journal of Sound and Vibration, 190(3):495-524.

[10]Nordborg, A., 2002. Wheel-rail noise generation due to nonlinear effects and parametric excitation. The Journal of the Acoustical Society of America, 111(4):1772-1781.

[11]Sheng, X., 2015. Generalization of the Fourier transform-based method for calculating the response of a periodic railway track subject to a moving harmonic load. Journal of Modern Transportation, 23(1):12-29.

[12]Sheng, X., Li, M., 2007. Propagation constants of railway tracks as a periodic structure. Journal of Sound and Vibration, 299(4-5):1114-1123.

[13]Sheng, X., Xiao, X., 2015. Calculation of moving Green functions for high-speed railway tracks. Proceedings of the 24th Symposium of the International Association for Vehicle System Dynamics, p.1355-1366.

[14]Sheng, X., Jones, C.J.C., Thompson, D.J., 2005. Responses of infinite periodic structures to moving or stationary harmonic loads. Journal of Sound and Vibration, 282(1-2):125-149.

[15]Sheng, X., Liu, Y., Zhou, X., 2016a. The response of a high-speed train wheel to a harmonic wheel-rail force. Journal of Physics: Conference Series, 744(1):012145.

[16]Sheng, X., Xiao, X., Zhang, S., 2016b. The time domain moving Green function of a railway track and its application to wheel-rail interactions. Journal of Sound and Vibration, 377:133-154.

[17]Thompson, D.J., 2008. A continuous damped vibration absorber to reduce broad-band wave propagation in beams. Journal of Sound and Vibration, 311(3-5):824-842.

[18]Thompson, D.J., 2009. Railway Noise and Vibration: Mechanisms, Modelling and Means of Control. Elsevier, Oxford, UK, p.221-279.

[19]Thompson, D.J., Jones, C.J.C., Waters, T.P., et al., 2007. A tuned damping device for reducing noise from railway tracks. Applied Acoustics, 68(1):43-57.

[20]Wu, T.X., 2008. On the railway track dynamics with rail vibration absorber for noise reduction. Journal of Sound and Vibration, 309(3-5):739-755.

[21]Zhai, W., Wei, K., Song, X., et al., 2015. Experimental investigation into ground vibrations induced by very high speed trains on a non-ballasted track. Soil Dynamics and Earthquake Engineering, 72:24-36.