Advertisement

Investigation on Running Safety of Empty Wagons in Long Freight Train Passing a Worn Switch Rail

  • Xin Ge
  • Kaiyun WangEmail author
  • Liang Ling
  • Lirong Guo
  • Kun Zhou
Conference paper
  • 8 Downloads
Part of the Lecture Notes in Mechanical Engineering book series (LNME)

Abstract

According to the field investigation of a climb derailment accident occurred at a switch rail area, the measured switch rail profiles are employed to establish a wagon-switch rail interaction model. Based on the numerical simulations, the characteristics of the wagon-switch rail interaction were studied. Meanwhile, the influences of the train speed, the coupler force and the coupler yaw angle on the running safety of the middle wagon of the 3-pack freight train were investigated. The simulation results indicate that fierce impacts occur in the transitional area between the stock rail and the switch rail accompanied with instantaneous wheel-rail separation. The wheel-rail interactive forces increase rapidly with an increase in the train speed, and the vertical interaction is fiercer than that in the lateral direction under the coasting condition. The synthetic effect of large lateral component of coupler force and variable cross-sections of switch rail can intensify the lateral wheel-rail interaction, and increases the operating risks of wagons. To enhance the running safety of the empty wagons in switch area, the train operation regulation should be optimized to reduce the longitudinal impulse, and the maintenances of the track structure and wagons should be strengthened to improve the running stability of the wagons.

Keywords

Empty wagon Switch rail Safety Coupler force Coupler yaw angle 

Notes

Acknowledgement

This research was supported by the National Science Fund for Distinguished Young Scholars (Grant No. 51825504) and the National Natural Science Foundation of China (Grant No. 51735012).

References

  1. 1.
    Ren, Z.S.: Wheel/rail multi-point contacts and vehicle-turnout system dynamic interactions. China Science Publish House, Beijing (2014). (In Chinese)Google Scholar
  2. 2.
    Britton, M.A., Asnaashari, S., Read, G.J.M.: Analysis of train derailment cause and outcome in Victoria, Australia, between 2007 and 2013: implications for regulation. J. Transp. Saf. Secur. 9(1), 45–63 (2017)CrossRefGoogle Scholar
  3. 3.
    Iwnicki, S.: Handbook of railway vehicle dynamics. CRC Press, Boca Raton (2006)CrossRefGoogle Scholar
  4. 4.
    Kassa, E., Clas, A., Jens, C.O.N.: Simulation of dynamic interaction between train and railway turnout. Veh. Syst. Dyn. 44(3), 247–258 (2006)CrossRefGoogle Scholar
  5. 5.
    Kassa, E., Jens, C.O.N.: Dynamic interaction between train and railway turnout: full-scale field test and validation of simulation models. Veh. Syst. Dyn. 46(S1), 521–534 (2008)CrossRefGoogle Scholar
  6. 6.
    Pålsson, B.A., Jens, C.O.N.: Dynamic vehicle–track interaction in switches and crossings and the influence of rail pad stiffness–field measurements and validation of a simulation model. Veh. Syst. Dyn. 53(6), 734–755 (2015)CrossRefGoogle Scholar
  7. 7.
    Zhai, W.M., Wang, K.Y., Cai, C.B.: Fundamentals of vehicle–track coupled dynamics. Veh. Syst. Dyn. 47(11), 1349–1376 (2009)CrossRefGoogle Scholar
  8. 8.
    Ren, Z.S., Sun, S.G., Xie, G.: A method to determine the two-point contact zone and transfer of wheel–rail forces in a turnout. Veh. Syst. Dyn. 48(10), 1115–1133 (2010)CrossRefGoogle Scholar
  9. 9.
    Xu, J.M., Wang, J., Wang, P., et al.: Study on the derailment behaviour of a railway wheelset with solid axles in a railway turnout. Veh. Syst. Dyn. 58(1), 123–143 (2020) Google Scholar
  10. 10.
    Liu, P.F., Zhai, W.M., Wang, K.Y.: Establishment and verification of three-dimensional dynamic model for heavy-haul train–track coupled system. Veh. Syst. Dyn. 54(11), 1511–1537 (2016)CrossRefGoogle Scholar
  11. 11.
    Ge, X., Wang, K.Y., Guo, L.R., et al.: Investigation on derailment of empty wagons of long freight train during dynamic braking. Shock Vib. 2, 1–18 (2018)Google Scholar
  12. 12.
    Zhai, W.M.: Vehicle-Track Coupled Dynamics, 4th edn. China Science Publish House, Beijing (2015). (In Chinese)Google Scholar
  13. 13.
    Zhai, W.M., Chen, G.: Method and criteria for evaluation of wheel derailment based on wheel vertical rise. J. China Railway Soc. 23(2), 17–26 (2001)Google Scholar
  14. 14.
    Wang, K.Y., Zhang, R., Chen, Z.G., et al.: Effect of coupler position errors on dynamic performance of heavy haul locomotive. J. Southwest Jiaotong Univ. 50(6), 1041–1046 (2016)Google Scholar
  15. 15.
    Guo, L.R., Wang, K.Y., Chen, Z.G., et al.: Analysis of the car body stability performance after coupler jack-knifing during braking. Veh. Syst. Dyn. 56(6), 900–922 (2017)CrossRefGoogle Scholar
  16. 16.
    Chen, Z.G., Zhai, W.M., Wang, K.Y.: Vibration feature evolution of locomotive with tooth root crack propagation of gear transmission system. Mech. Syst. Signal Process. 115, 29–44 (2019)CrossRefGoogle Scholar
  17. 17.
    Shi, Z.Y., Wang, K.Y., Guo, L.R., et al.: Effect of arc surfaces friction coefficient on coupler stability in heavy haul locomotives: simulation and experiment. Veh. Syst. Dyn. 55(9), 1368–1383 (2017)CrossRefGoogle Scholar
  18. 18.
    Lv, K.K., Wang, K.Y., Chen, Z.G., et al.: The effect of the secondary lateral stopper on the compressed stability of the couplers and running safety of the locomotives. Proc. Inst. Mech. Eng. Part F: J. Rail Rapid Transit 232(3), 851–862 (2018)CrossRefGoogle Scholar

Copyright information

© Springer Nature Switzerland AG 2020

Authors and Affiliations

  • Xin Ge
    • 1
  • Kaiyun Wang
    • 1
    Email author
  • Liang Ling
    • 1
  • Lirong Guo
    • 1
    • 2
  • Kun Zhou
    • 1
  1. 1.State Key Laboratory of Traction PowerSouthwest Jiaotong UniversityChengduChina
  2. 2.Locomotive & Car Research InstituteChina Academy of Railway Sciences Corporation LimitedBeijingChina

Personalised recommendations