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Effect of nonlinearity of fastening system on railway slab track dynamic response

  • Sadeghi, Javad (School of Railway Engineering, Iran University of Science and Technology) ;
  • Seyedkazemi, Mohammad (School of Railway Engineering, Iran University of Science and Technology) ;
  • Khajehdezfuly, Amin (Faculty of Civil Engineering and Architecture, Shahid Chamran University of Ahvaz)
  • 투고 : 2021.09.18
  • 심사 : 2022.07.21
  • 발행 : 2022.09.25

초록

Fastening systems have a significant role in the response of railway slab track systems. Although experimental tests indicate nonlinear behavior of fastening systems, they have been simulated as a linear spring-dashpot element in the available literature. In this paper, the influence of the nonlinear behavior of fastening systems on the slab track response was investigated. In this regard, a nonlinear model of vehicle/slab track interaction, including two commonly used fastening systems (i.e., RFFS and RWFS), was developed. The time history of excitation frequency of the fastening system was derived using the short time Fourier transform. The model was validated, using the results of a comprehensive field test carried out in this study. The frequency response of the track was studied to evaluate the effect of excitation frequency on the railway track response. The results obtained from the model were compared with those of the conventional linear model of vehicle/slab track interaction. The effects of vehicle speed, axle load, pad stiffness, fastening preload on the difference between the outputs obtained from the linear and nonlinear models were investigated through a parametric study. It was shown that the difference between the results obtained from linear and nonlinear models is up to 38 and 18 percent for RWFS and RFFS, respectively. Based on the outcomes obtained, a nonlinear to linear correction factor as a function of vehicle speed, vehicle axle load, pad stiffness and preload was derived. It was shown that consideration of the correction factor compensates the errors caused by the assumption of linear behavior for the fastening systems in the currently used vehicle track interaction models.

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참고문헌

  1. Alembagheri, M., Rashidi, M. and Seyedkazemi, M. (2020), "Structural system identification of elevated steel water tank using ambient vibration test and calibration of numerical model", Int. J. Struct. Stab. Dyn., 20, 2071010. https://doi.org/10.1142/S0219455420710108.
  2. Behr, W. (2013), "Mitigation measures installed on commercial track", Document Code: RIVAS_SNCF_ WP3_D3_5_V04, 1-27.
  3. Blanco-Lorenzo, J., Santamaria, J., Vadillo, E.G. and Oyarzabal, O. (2011), "Dynamic comparison of different types of slab track and ballasted track using a flexible track model", Proc. Inst. Mech. Eng., Part F: J. Rail Rap. Trans., 225, 574-592. https://doi.org/10.1177/0954409711401516.
  4. Chen, Z., Shin, M., Wei, S., Andrawes, B. and Kuchma, D.A. (2014), "Finite element modeling and validation of the fastening systems and concrete sleepers used in North America", Proc. Inst. Mech. Eng., Part F: J. Rail Rap. Trans., 228, 590-602. https://doi.org/10.1177/0954409714529558.
  5. Costa, P.A., Calcada, R. and Cardoso, A.S. (2012), "Track-ground vibrations induced by railway traffic: In-situ measurements and validation of a 2.5 D FEM-BEM model", Soil Dyn. Earthq. Eng., 32, 111-128. https://doi.org/10.1016/j.soildyn.2011.09.002.
  6. Dyniewicz, B., Bajer, C.I., Kuttler, K.L. and Shillor, M. (2019), "Vibrations of a Gao beam subjected to a moving mass", Nonlin. Anal.: Real World Appl., 50, 342-364. https://doi.org/10.1177/1081286517718229.
  7. El Kacimi, A., Woodward, P.K., Laghrouche, O. and Medero, G. (2013), "Time domain 3D finite element modelling of traininduced vibration at high speed", Comput. Struct., 118, 66-73. https://doi.org/10.1016/j.compstruc.2012.07.011.
  8. Faure, B., Bongini, E. and Herron, D. (2014), "Reduction of railway induced vibration with soft fastening systems for ballasted tracks", 21st International Congress on Sound and Vibration. Beijing, China.
  9. Ferreno, D., Casado, J.A., Carrascal, I.A., Diego, S., Ruiz, E., Saiz, M., ... & Cimentada, A.I. (2019), "Experimental and finite element fatigue assessment of the spring clip of the SKL-1 railway fastening system", Eng. Struct., 188, 553-563. https://doi.org/10.1016/j.engstruct.2019.03.053.
  10. Giannakos, K. (2014), "Secondary stiffness of fastening's clip: Influence on the behaviour of the railway track panel", Transport Research Arena.
  11. He, Z., Zhai, W., Wang, Y., Shi, G., Bao, N., Yuan, X., ... & Wang, H. (2022), "Theoretical and experimental study on vibration reduction and frequency tuning of a new dampedsleeper track", Constr. Build. Mater., 336, 127420. https://doi.org/10.1016/j.conbuildmat.2022.127420.
  12. Heydari-Noghabi, H., Varandas, J.N., Esmaeili, M.O.R.T.E.Z.A. and Zakeri, J. (2017), "Investigating the influence of auxiliary rails on dynamic behavior of railway transition zone by a 3D train-track interaction model", Lat. Am. J. Solid. Struct., 14, 2000-2018. https://doi.org/10.1590/1679-78253906.
  13. Houmed, W. (2016), "Fatigue analysis of the rail fastening Eclamp on AA-LRT", Addis Ababa University.
  14. Hussein, M.F.M. and Hunt, H.E.M. (2009), "A numerical model for calculating vibration due to a harmonic moving load on a floating-slab track with discontinuous slabs in an underground railway tunnel", J. Sound Vib., 321, 363-374. https://doi.org/10.1016/j.jsv.2008.09.023.
  15. Jianwei, Y., Zhao, Y., Wang, J., Bai, Y. and Liu, C. (2020), "Investigation on impact response feature of railway vehicles with wheel flat fault under variable speed conditions", J. Vib. Acoust., 142, 031009. https://doi.org/10.1115/1.4046126.
  16. Kaewunruen, S. and Remennikov, A.M. (2008), "An alternative rail pad tester for measuring dynamic properties of rail pads under large preloads", Exp. Mech., 48, 55-64. https://doi.org/10.1007/s11340-007-9059-3.
  17. Kun, L., Lei, X. and Zeng, S. (2017), "Influence analysis on the effect of rail fastening parameters on the vibration response of track-bridge system", Adv. Mech. Eng., 9, 1687814017702839. https://doi.org/10.1177/1687814017702839.
  18. Lei, X. (2017), High Speed Railway Track Dynamics, Springer.
  19. Lei, X. and Wang, J. (2014), "Dynamic analysis of the train and slab track coupling system with finite elements in a moving frame of reference", J. Vib. Control, 20, 1301-1317. https://doi.org/10.1177/1077546313480540.
  20. Liu, Y., Yin, H. P., Luo, Y. and Zhang, J. (2018), "Finite element analysis and experimental investigation of nonlinear features of rail fastening systems", Proc. Inst. Mech. Eng., Part F: J. Rail Rap. Trans., 232, 873-894. https://doi.org/10.1177/0954409717701779.
  21. Liu, Y. (2015), "Experimental and numerical analysis of nonlinear properties of rail fastening systems", Doctoral Dissertation, Paris Est.
  22. Manual for Railway Engineering (2009), American Railway Engineering and Maintenance-of-Way Association (AREMA), Landover, Maryland.
  23. Chen, M., Zhai, W., Zhu, S., Xu, L. and Sun, Y. (2021), "Vibration-based damage detection of rail fastener using fully convolutional networks", Vehic. Syst. Dyn., 60(7), 2191-2210. https://doi.org/10.1080/00423114.2021.1896010.
  24. Mottahed, J., Zakeri, J.A. and Mohammadzadeh, S. (2018), "Field and numerical investigation of the effect of under-sleeper pads on the dynamic behavior of railway bridges", Proc. Inst. Mech. Eng., Part F: J. Rail Rap. Trans., 232, 2126-37. https://doi.org/10.1177/0954409718764027.
  25. Oregui, M., Li, Z. and Dollevoet, R.J.I.J. (2015), "An investigation into the modeling of railway fastening", Int. J. Mech. Sci., 92, 1-11. https://doi.org/10.1016/j.ijmecsci.2014.11.019.
  26. Oregui, M., Nunez, A., Dollevoet, R. and Li, Z. (2017), "Sensitivity analysis of railpad parameters on vertical railway track dynamics", J. Eng. Mech., 143, 04017011. https://doi.org/10.1061/(ASCE)EM.1943-7889.0001207.
  27. Palsson, B.A. and Nielsen, J.C. (2015), "Dynamic vehicle-track interaction in switches and crossings and the influence of rail pad stiffness-field measurements and validation of a simulation model", Vehic. Syst Dyn., 53, 734-55. https://doi.org/10.1080/00423114.2015.1012213.
  28. Sadeghi, J., Khajehdezfuly, A., Esmaeili, M. and Poorveis, D. (2016a), "An efficient algorithm for nonlinear analysis of vehicle/track interaction problems", Int. J. Struct. Stab. Dyn., 16, 1550040. https://doi.org/10.1142/S0219455415500406.
  29. Sadeghi, J., Khajehdezfuly, A., Esmaeili, M. and Poorveis, D. (2016b), "Dynamic interaction of vehicle and discontinuous slab track considering nonlinear Hertz contact model", J. Transp. Eng., 142, 04016011. https://doi.org/10.1061/(ASCE)TE.1943-5436.0000823.
  30. Sadeghi, J., Khajehdezfuly, A., Esmaeili, M. and Poorveis, D. (2016c), "Investigation of rail irregularity effects on wheel/rail dynamic force in slab track: Comparison of two and three dimensional models", J. Sound Vib., 374, 228-44. https://doi.org/10.1016/j.jsv.2016.03.033.
  31. Sadeghi, J., Seyedkazemi, M. and Khajehdezfuly, A. (2020), "Nonlinear simulation of vertical behavior of railway fastening system", Eng. Struct., 209, 110340. https://doi.org/10.1016/j.engstruct.2020.110340.
  32. Sadeghi, J., Seyedkazemi, M. and Khajehdezfuly, A. (2021), "Effect of uncertainty of fastening systems properties on wheel/rail dynamic force", Lat. Am. J. Solid. Struct., 18, https://doi.org/10.1590/1679-78256537.
  33. Sheng, X., Jones, C.J.C. and Thompson, D.J. (2004), "A theoretical model for ground vibration from trains generated by vertical track irregularities", J. Sound Vib., 272, 937-65. https://doi.org/10.1016/S0022-460X(03)00782-X.
  34. Sun, L., Yan, Z., Xiao, J., Fang, H. and Cui, S. (2020), "Experimental analysis of the modal characteristics of rail fastening clips", Proc. Inst. Mech. Eng., Part F: J. Rail Rap Trans., 234, 134-141. https://doi.org/10.1177/0954409719834784.
  35. Wang, A., Wang, Z., Zhao, Z., Zhang, Y., Duan, Y., Lei, T. and Du, M. (2015), "Effects of track stiffness and tuned rail damper on rail roughness growth and rail vibration levels on metro system", Noise and Vibration Mitigation for Rail Transportation Systems, Springer, Berlin, Heidelberg.
  36. Wang, H. and Markine, V. (2018), "Corrective countermeasure for track transition zones in railways: Adjustable fastener", Eng. Struct., 169, 1-14. https://doi.org/10.1016/j.engstruct.2018.05.004.
  37. Xiao, H., Wang, J.B. and Zhang, Y.R. (2017), "The fractures of etype fastening clips used in the subway: Theory and experiment", Eng. Fail. Anal., 81, 57-68. https://doi.org/10.1016/j.engfailanal.2017.07.006.
  38. Yuan, X., Zhu, S. and Zhai, W. (2021), "Dynamic performance evaluation of rail fastening system based on a refined vehicletrack coupled dynamics model", Vehic. Syst. Dyn., 60(8), 2564- 2586. https://doi.org/10.1080/00423114.2021.1913193.
  39. Zakeri, J.A. and Tajalli, M.R. (2018), "Comparison of linear and nonlinear behavior of track elements in contact-impact models", Periodica Polytechnica Civil Eng., 62, 963-970. https://doi.org/10.3311/PPci.12058.
  40. Zhai, W. (2019), Vehicle-track Coupled Dynamics: Theory and Applications, Springer Nature.
  41. Zhai, W., Wang, K. and Cai, C. (2009), "Fundamentals of vehicletrack coupled dynamics", Vehic. Syst. Dyn., 47, 1349-1376. https://doi.org/10.1080/00423110802621561.
  42. Zhai, W., Xia, H., Cai, C., Gao, M., Li, X., Guo, X., ... & Wang, K. (2013), "High-speed train-track-bridge dynamic interactionsPart I: Theoretical model and numerical simulation", Int. J. Rail Transp., 1, 3-24. https://doi.org/10.1080/23248378.2013.791498.
  43. Zhang, J., Gao, Q., Tan, S.J. and Zhong, W.X. (2012), "A precise integration method for solving coupled vehicle-track dynamics with nonlinear wheel-rail contact", J. Sound Vib., 331, 4763-4773. https://doi.org/10.1016/j.jsv.2012.05.033.
  44. Zhang, Z., Wang, A., Wang, Z. and Xu, N. (2016), "Analysis of impact of low stiffness and tuned damper fastener on track system", 23rd International Congress on Sound and Vibration.
  45. Zhao, C., Wang, P., Sheng, X. and Meng, D. (2017), "Theoretical simulation and experimental investigation of a rail damper to minimize short-pitch rail corrugation", Math. Prob. Eng., 2017, Article ID 2359404. https://doi.org/10.1155/2017/2359404.
  46. Zhu, S., Cai, C. and Spanos, P.D. (2015), "A nonlinear and fractional derivative viscoelastic model for rail pads in the dynamic analysis of coupled vehicle-slab track systems", J. Sound Vib., 335, 304-320. https://doi.org/10.1016/j.jsv.2014.09.034.