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WEI Wei. Brake performances of 20000 ton connected train[J]. Journal of Traffic and Transportation Engineering, 2007, 7(6): 12-16.
Citation: WEI Wei. Brake performances of 20000 ton connected train[J]. Journal of Traffic and Transportation Engineering, 2007, 7(6): 12-16.
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Brake performances of 20000 ton connected train

  • School of Traffic and Transportation, Dalian Jiaotong University, Dalian 116028, Liaoning, China

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  • Author Bio:

    Wei Wei(1963-), male, EngD, professor, + 86-411-84109192, weiwei@djtu.edu.cn

  • Received Date: 2007-06-20
  • Publish Date: 2007-12-25
    Abstract
  • In order to decrease the longitudinal impact of loaded train, and improve the synchronization property of its brake system, a pneumatic brake simulation system was put forward based on airflow theory, the momentary airflow state of train brake system was calculated to get its dynamic characteristics, the performances of service brake and emergency brake for 20000 ton loaded train were predicted, and the propagation performances of brake waves were analyzed.Simulation result shows that the maximum brake time delay of train with 2 sub-trains decreases by 50%, if locomotives are added to the ends of sub-trains, the delay decreases by 75%, and the delay of train with 4 sub-trains reduces by 75% too; emergency brake wave propagates forward and backward from locomotive at the same speed, service brake wave propagates forward at a slower speed than backward.Obviously, connected train has better brake synchronization property.

     

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