DOI QR코드

DOI QR Code

Impacts of wind shielding effects of bridge tower on railway vehicle running performance

  • Wu, Mengxue (School of Civil Engineering and Architecture, Southwest Petroleum University) ;
  • Li, Yongle (Department of Bridge Engineering, Southwest Jiaotong University) ;
  • Zhang, Wei (Department of Civil and Environmental Engineering, University of Connecticut)
  • 투고 : 2016.03.19
  • 심사 : 2017.05.30
  • 발행 : 2017.07.25

초록

When railway vehicles run by towers of long span bridges, the railway vehicles might experience a sudden load-off and load-on phenomenon in crosswind conditions. To ensure the running safety of the railway vehicles and the running comfort of the passengers, some studies were carried out to investigate the impacts of sudden changes of aerodynamic loads on moving railway vehicles. In the present study, the aerodynamic coefficients which were measured in wind tunnel tests using a moving train model are converted into the aerodynamic coefficients in the actual scale. The three-component aerodynamic loads are calculated based on the aerodynamic coefficients with consideration of the vehicle movement. A three-dimensional railway vehicle model is set up using the multibody dynamic theory, and the aerodynamic loads are treated as the inputs of excitation varied with time for kinetic simulations of the railway vehicle. Thus the dynamic responses of the railway vehicle passing by the bridge tower can be obtained from the kinetic simulations in the time domain. The effects of the mean wind speeds and the rail track positions on the running performance of the railway vehicle are discussed. The three-component aerodynamic loads on the railway vehicle are found to experience significant sudden changes when the vehicle passes by the bridge tower. Correspondingly, such sudden changes of aerodynamic loads have a large impact on the dynamic performance of the running railway vehicle. The dynamic responses of the railway vehicle have great fluctuations and significant sudden changes, which is adverse to the running safety and comfort of the railway vehicle passing by the bridge tower in crosswind conditions.

키워드

과제정보

연구 과제 주관 기관 : National Natural Science Foundation of China, Sichuan Province Youth Science and Technology Innovation Team, Young Scholars Development Fund of SWPU

참고문헌

  1. Allotta, B., Meli, E., Ridolfi, A. and Rindi, A. (2014), "Development of an innovative wheel-rail contact model for the analysis of degraded adhesion in railway systems", Tribol. Int., 69, 128-140. https://doi.org/10.1016/j.triboint.2013.09.013
  2. Argentini, T., Ozkan, E., Rocchi, D., Rosa, L. and Zasso, A. (2011), "Cross-wind effects on a vehicle crossing the wake of a bridge pylon", J. Wind Eng. Ind. Aerod., 99, 734-740. https://doi.org/10.1016/j.jweia.2011.01.021
  3. Astiz, M.A. (1998), "Flutter stability of very long suspension bridges", J. Bridge Eng., 3(3), 132-139. https://doi.org/10.1061/(ASCE)1084-0702(1998)3:3(132)
  4. Baker, C.J. (1986), "Train aerodynamic forces and moments from moving model experiments", J. Wind Eng. Ind. Aerod., 24(3), 227-251. https://doi.org/10.1016/0167-6105(86)90024-3
  5. Baker, C.J. (1998), "The effect of high winds on vehicle behavior", Proceedings of the International Symposium on Advances in Bridge Aerodynamics, Copenhagen, Denmark, May.
  6. Brown, W.C. (1996), "Development of the deck for the 3300m span Messina", Proceedings of the 15th Congress of IABSE, Copenhagen, Denmark, June.
  7. Charuvisit, S. and Kimura, K. (2004), "Effects of wind barrier on a vehicle passing in the wake of a bridge tower in cross wind and its response", J. Wind Eng. Ind. Aerod., 92, 609-639. https://doi.org/10.1016/j.jweia.2004.03.006
  8. Charuvisit, S., Kimura, K. and Fujino, Y. (2004), "Experimental and semi-analytical studies on the aerodynamic forces acting on a vehicle passing through the wake of a bridge tower in crosswind", J. Wind Eng. Ind. Aerod., 92, 749-780. https://doi.org/10.1016/j.jweia.2004.04.001
  9. Cheli, F., Belforte, P., Melzi, S., Sabbioni, E. and Tomasini, G. (2006), "Numerical-experimental approach for evaluating cross-wind aerodynamic effects on heavy vehicles", Vehicle Syst. Dyn., 44, 791-794. https://doi.org/10.1080/00423110600886689
  10. Guo, W.W., Xia, H. and Zhang, N. (2013), "Dynamic responses of Tsing Ma Bridge and running safety of trains subjected to Typhoon York", Int. J. Rail Trans., 1(3), 181-192. https://doi.org/10.1080/21650349.2013.808417
  11. Ignesti, M., Malvezzi, M., Marini, L., Meli, E. and Rindi, A. (2012), "Development of a wear model for the prediction of wheel and rail profile evolution in railway systems", Wear, 284-285, 1-17. https://doi.org/10.1016/j.wear.2012.01.020
  12. Ignesti, M., Innocenti, A., Marini, L., Meli, E. and Rindi, A. (2013), "Development of a wear model for the wheel profile optimization on railway vehicles", Vehicle Syst. Dyn., 51(9), 1363-1402. https://doi.org/10.1080/00423114.2013.802096
  13. Innocenti, A., Marini, L., Meli, E., Pallini, G. and Rindi, A. (2014), "Development of a wear model for the analysis of complex railway networks", Wear, 309(1-2), 174-191. https://doi.org/10.1016/j.wear.2013.11.010
  14. Li, Y.L., Chen, N., Cai, X.T. and Qiang, S.Z. (2010), "Wake effect of bridge tower on coupling vibration of wind-vehicle-bridge system", J. Southwest Jiaotong Univ., 45(6), 875-881. (In Chinese)
  15. Li, Y.L., Hu, P., Cai, C.S., Zhang, M.J. and Qiang, S.Z. (2013), "Wind tunnel study of a sudden change of train wind loads due to the wind shielding effects of bridge towers and passing trains", J. Eng. Mech. -ASCE, 139(9), 1249-1259. https://doi.org/10.1061/(ASCE)EM.1943-7889.0000559
  16. Meli, E., Pugi, L. and Ridolfi, A. (2014), "An innovative degraded adhesion model for multibody applications in the railway field", Multibody Syst. Dyn., 32(2), 133-157. https://doi.org/10.1007/s11044-013-9400-9
  17. Rocchi, D., Rosa, L., Sabbioni, E., Sbrosi, M. and Belloli, M. (2012), "A numerical-experimental methodology for simulating the aerodynamic forces acting on a moving vehicle passing through the wake of a bridge tower under crosswind", J. Wind Eng. Ind. Aerod., 104-106, 256-265. https://doi.org/10.1016/j.jweia.2012.03.012
  18. Wu, J. and Chen, S.R. (2011), "Probabilistic dynamic behavior of a long-span bridge under extreme events", Eng. Struct., 33, 1657-1665. https://doi.org/10.1016/j.engstruct.2011.02.002
  19. Zhang, J.W., Xu, B. and Guan, X.Q. (2014), "A combined simulation procedure for wear assessment of the HXN5 locomotive", Wear, 314, 305-313. https://doi.org/10.1016/j.wear.2013.11.042

피인용 문헌

  1. Dynamic analysis of coupled train-track-bridge system subjected to debris flow impact vol.22, pp.4, 2017, https://doi.org/10.1177/1369433218785643
  2. Study of wind-vehicle-bridge system of suspended monorail during the meeting of two trains vol.22, pp.8, 2017, https://doi.org/10.1177/1369433219830255