Study on Sensitive Wavelength Characteristics of Track Short Wave Irregularity Based on High Frequency Wheel/rail Contact Model

被引：0
|
作者：
Niu L. [1 ]
Liu J. [1 ]
机构：
[1] Infrastructure Inspection Center, China Academy of Railway Sciences Corporation Limited, Beijing
来源：
Jixie Gongcheng Xuebao/Journal of Mechanical Engineering | 2019年 / 55卷 / 08期
关键词：
Explicit transient analysis; High frequency wheel/rail contact model; Track short wave irregularity; Wheel/rail contact force;
D O I：
10.3901/JME.2019.08.173
中图分类号：
学科分类号：
摘要：
Short track irregularity is main source of high frequency dynamic wheel/rail vibration, causing intense interaction force between wheel and rail. high frequency wheel/rail contact model built by ABAQUS/EXPLICIT software module can solve the contact force between wheel and rail under the conditions of track short wave irregularity in high speed. The parameters of this model come from the real shape and size of the wheel and rail, and can introduce arbitrary shapes of track short wave irregularity and rail state parameters. under the real high-speed railway short wave track irregularity conditions, the correlation coefficient between the measured wheel rail vertical force from high-speed inspection car and the wheel rail vertical force from the model is 0.82, which verify the correctness of the model. By comparing the dynamic wheel rail vertical forces caused by track short wave irregularities of different cosine shapes in multiple speeds. The result shows that the dynamic wheel rail vertical force related with track short wave irregularity amplitude, and the sensitive wavelength of the track irregularity. In the condition of the vehicle speed not less than 200 km/h, the sensitive wavelength in track short wave irregularity between vehicle and rail is 100-200 mm. © 2019 Journal of Mechanical Engineering.
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页码：173 / 182
页数：9
相关论文
共 13 条
  • [1] TB/T 3355-2014 Track geometry dynamic inspection and evaluation method, (2015)
  • [2] Gao J., Zhai W., Dynamic effect and safety limits of rail weld irregularity on high-speed railways, Sci. Sin.: Tech., 44, 7, pp. 697-706, (2014)
  • [3] Jin X., Xiao X., Effect of sleeper pitch on rail corrugation at a tangent track in vehicle huntiong, Wear, 265, pp. 1163-1175, (2008)
  • [4] Zhao X., Wen Z.F., Wang H.Y., Et al., Modeling of high-speed wheel-rail rolling contact on a corrugated rail and corrugation development, Journal of Zhejiang University, 15, 12, pp. 946-963, (2014)
  • [5] Steenbergen M.J.M.M., Quantification of dynamic wheel-rail contact forces at short rail irregularities and application to measured rail welds, Journal of Sound & Vibration, 312, 4-5, pp. 606-629, (2008)
  • [6] Li Z., Zhao X., Esveld C., Et al., An investigation into the causes of squats-Correlation analysis and numerical modeling, Wear, 265, 9-10, pp. 1349-1355, (2008)
  • [7] Sun Y.Q., Cole C., McClanachan M., Et al., Rail Short-wavelength Irregularity Identification based on wheel-rail impact response measurements and simulations, 9th International Heavy Haul Conference, (2009)
  • [8] Igeland A., Ilias H., Rail head corrugation growth predictions based on non-linear high frequency vehicle/track interaction, Wear, 213, 1-2, pp. 90-97, (1997)
  • [9] Esweld C., Modern Railway Track, (2001)
  • [10] Torstensson P.T., Nielsen J.C.O., Baeza L., High-frequency vertical wheel-rail contact forces at high vehicle speeds-The influence of wheel Rrotation, Notes on Numerical Fluid Mechanics & Multidisciplinary Design, 118, pp. 43-50, (2012)
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