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Article Navigation >  Journal of Traffic and Transportation Engineering  > 2011  >  11(2): 59-64
MA Wei-hua, SONG Rong-rong, JIE Zhang-an, LUO Shi-hui. Influences of buffer impedance characteristics on dynamics performances for heavy haul train[J]. Journal of Traffic and Transportation Engineering, 2011, 11(2): 59-64. doi: 10.19818/j.cnki.1671-1637.2011.02.010
Citation: MA Wei-hua, SONG Rong-rong, JIE Zhang-an, LUO Shi-hui. Influences of buffer impedance characteristics on dynamics performances for heavy haul train[J]. Journal of Traffic and Transportation Engineering, 2011, 11(2): 59-64. doi: 10.19818/j.cnki.1671-1637.2011.02.010
shu

Influences of buffer impedance characteristics on dynamics performances for heavy haul train

doi: 10.19818/j.cnki.1671-1637.2011.02.010
  • 1.

    Traction Power State Key Laboratory, Southwest Jiaotong University, Chengdu 610031, Sichuan, China

  • 2.

    School of Computer Science and Technology, Southwest University for Nationalities, Chengdu 610041, Sichuan, China

  • 3.

    CNR Tianjin JL Railway Transport Equipment Co., Ltd., Tianjin 300232, China

More Information
  • Author Bio:

    MA We-i hua (1979-), male, associate researcher, PhD, +86-28-87601973, maweihua2008@gmail.com

  • Received Date: 2010-11-29
  • Publish Date: 2011-04-25
    Abstract
  • The buffer characteristics of heavy haul train were studied, and the structures and working principles of elastic clay buffer and friction clay buffer were analyzed. On the basis of HXD1 type locomotive, 13A type coupler and two buffers, a dynamics model of 104 t grade traction train with four marshalling locomotives was established, and the influences of the static and dynamic impedance characteristics of two buffers on the dynamics performances of heavy haul train were researched. Simulation result indicates that when heavy haul train conducts cycle braking on long downgrade, the infinite static impedance characteristic of friction clay buffer is beneficial to play buffer action, and the stroke and capacity of friction clay buffer can keep 100% under the static pressure of 900 kN. Friction clay buffer also can satisfy the demand of further dynamic pressure of 1 000 kN, while the buffer stroke is no more than 20 mm. Under the compound effect of static pressure of 900 kN and dynamic pressure of 400 kN, the stroke of elastic clay buffer has reached 60 mm, so elastic clay buffer can't satisfy the demand of more greater impact pressure. On the aspect of dynamic impendence characteristic, two buffers all can satisfy the normal running demand of 104 t grade heavy haul train.

     

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