YU Meng-ge, ZHANG Ji-ye, ZHANG Wei-hua. Running attitudes of car body and wheelset for high-speed train under cross wind[J]. Journal of Traffic and Transportation Engineering, 2011, 11(4): 48-55. doi: 10.19818/j.cnki.1671-1637.2011.04.008
Citation: YU Meng-ge, ZHANG Ji-ye, ZHANG Wei-hua. Running attitudes of car body and wheelset for high-speed train under cross wind[J]. Journal of Traffic and Transportation Engineering, 2011, 11(4): 48-55. doi: 10.19818/j.cnki.1671-1637.2011.04.008

Running attitudes of car body and wheelset for high-speed train under cross wind

doi: 10.19818/j.cnki.1671-1637.2011.04.008
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  • Author Bio:

    YU Meng-ge(1985-), female, doctoral student, +86-28-86466040, yumengge0627@163.com

    ZHANG Ji-ye(1965-), male, professor, PhD, +86-28-86466040, jyzhang@home.swjtu.edu.cn

  • Received Date: 2011-03-17
  • Publish Date: 2011-08-25
  • The aerodynamics model of high-speed train was established by using fluid dynamics theory, and the aerodynamic forces and aerodynamic moments acting on the car body of high-speed train were calculated. Vehicle system dynamics model was established by using multi-body dynamics theory, and the running attitudes of front car body and wheelset for high-speed train under different wind directions, side slip angles and synthetic wind speeds were analyzed. Calculation result indicates that under different cross wind conditions, front car body always traverses and rolls toward the leeward side. When wind direction is 90°, the lateral displacement and roll angle of front car body always are biggest. When train speed is 350 km·h-1, cross wind speeds are 13.8, 32.6 m·s-1 respectively, the maximum lateral displacements of car body are 74. 2, 171. 7 mm respectively, and the maximum rolling angles are 3.1° and 8.4° respectively. When train speed is 200 km·h-1, cross wind speed is more than 32.6 m·s-1, and wind direction is 90°, the first and second wheelsets of front car traverse toward the leeward side, and the wheels on the leeward side have climbing track phenomenon. The third and fourth wheelsets traverse toward the windward side, and on the windward side, the third wheelset has climbing track phenomenon. The lateral displacement and yaw angle of the fourth wheelset are less than those of former three wheelsets, and the fourth wheelset is relatively safe.

     

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