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Development of a Numerical Method of Vertical Train/Track Interaction in the Track Section with Hanging Sleepers

뜬침목구간에서 차량/궤도 상호작용 수치해석기법 개발

  • 양신추 (한국철도기술연구원 고속철도연구본부) ;
  • 이지하 (한국철도기술연구원 신교통연구본부)
  • Received : 2011.09.16
  • Accepted : 2012.03.16
  • Published : 2012.06.30

Abstract

Hanging sleepers are frequently observed in the ballasted track with the rail of high rigidity. These hanging sleepers at the high speed line could cause such large dynamic force compared to those at the conventional line. This dynamic force would, in turn, deteriorate train running stability as well as riding comfort, and accelerate irregularity of track and failure of track materials, leading to a sharp increase in track maintenance cost. When the wheel-rail contact spring exhibits nonlinear behavior and some components of the system like hanging sleeper exhibit bi-linear behaviors, an effective analytical method is proposed for train-track interactions. The verification of the present method is carried out comparing numerical results by the present method and those by Ono's method of RTRI.

References

  1. W. Zhai, Z. Cai (1997) Dynamic interaction between a lumped mass vehicle and a discretely supported continuous rail track, Computer & structures, 63(5), pp. 987-997. https://doi.org/10.1016/S0045-7949(96)00401-4
  2. Y.Q. Sun, M. Dhanasekar (2002) A dynamic model for the vertical interaction of the rail track and wagon system, Int. J. of Solids and Structures, 39(5), pp. 1337-1359. https://doi.org/10.1016/S0020-7683(01)00224-4
  3. X.S. Jin, Z.F. Wen, K.Y. Wang, et al (2006) Three-dimensional train-track model for study of rail corrugation. J. of Sound and Vibration, p. 293.
  4. G. Xie, S.D. Iwnicki (2008) Simulation of wear on a rough rail using a time-domain wheel-track interaction model. Wear, 265, pp. 1572-1583, pp. 830-855. https://doi.org/10.1016/j.wear.2008.03.016
  5. R.G. Dong, S. Sankar, R.V. Dukkipati (1994) A fintie element model of railway track and its application to the wheel flat problem, Proc. Instn Mech. Engrs, Part F: J. of Rail and Rapid Transit, 208, pp. 61-72. https://doi.org/10.1243/PIME_PROC_1994_208_234_02
  6. S.C. Yang (2011) Investigation of the maintenance criteria for the rail surface defects in high-speed railways, Journal of Korean Society for Railway, 14(6), pp. 535-544. https://doi.org/10.7782/JKSR.2011.14.6.535
  7. K. Koro, K. Abe, M. Ishida, T. Suzuki (2004) Timoshenko beam finite element for vehicle-track vibration analysis and its application to jointed railway track, Proc. Instn Mech. Engrs, Part F ? J. of Rail and Rapid Transit, 218, pp. 159-172. https://doi.org/10.1243/0954409041319687
  8. A. Lundqvist, T. Dahlberg (2005) Load impact onrailway track due to unsupported sleepers, Proc. Instn Mech. Engrs, Part F: J. of Rail and Rapid Transit, 219, pp. 67-77. https://doi.org/10.1243/095440905X8790
  9. Y. Bezin, S.D. Iwnicki1, M. Cavalletti, E. deVries, et al (2009) An invsstigation of sleeper voids using a flexible track model integrated with railway multi-body dynamics, Proc. Instn Mech. Engrs, Part F: J. of Rail and Rapid Transit, 223, pp. 597-607. https://doi.org/10.1243/09544097JRRT276
  10. S.G. Zhang, X.B. Xiao, Z.F. Wen, X.S. Jin (2008) Effect of unsupported sleepers on wheel/rail normal load, Soil Dynamics and Earthquake Engineering, 28, pp. 662-673. https://doi.org/10.1016/j.soildyn.2007.08.006
  11. S. Ono, M. Ishida, M. Uchida (2001) Prediction of the growth of track irregularity using track dynamic model, RTRI report, 15(4), pp. 39-44.
  12. S.C. Yang (2009) Enhancement of the finite-element method for the analysis of vertical train-track interactions, Proc Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit, 223, pp. 609-620. https://doi.org/10.1243/09544097JRRT285
  13. W. Zhai, Z. Cai (1997) Dynamic interaction between a lumped mass vehicle and a discretely supported continuous rail track, Computer & structures, 63(5), pp. 987-997. https://doi.org/10.1016/S0045-7949(96)00401-4
  14. X. Lei, N.A. Noda (2002) Analyses of dynamic response of vehicle and track coupling system with random irregularity of track vertical profile, J. of Sound and Vibration, 258(1), pp. 147-165. https://doi.org/10.1006/jsvi.2002.5107
  15. R.V. Dukkipati (2000) Vehicle Dynamics, CRC Press, USA.
  16. S.C. Yang, E. Kim (2012) Effect on vehicle and track interaction of installation faults in the concrete bearing surface of a direct-fixation track, J. of Sound and Vibration, 331(1), pp. 192-212. https://doi.org/10.1016/j.jsv.2011.08.023