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Article Navigation >  Journal of Traffic and Transportation Engineering  > 2012  >  12(3): 37-43
WU Qing, LUO Shi-hui, WEI Chong-feng, MA Wei-hua. Dynamics simulation models of coupler systems for freight locomotive[J]. Journal of Traffic and Transportation Engineering, 2012, 12(3): 37-43. doi: 10.19818/j.cnki.1671-1637.2012.03.006
Citation: WU Qing, LUO Shi-hui, WEI Chong-feng, MA Wei-hua. Dynamics simulation models of coupler systems for freight locomotive[J]. Journal of Traffic and Transportation Engineering, 2012, 12(3): 37-43. doi: 10.19818/j.cnki.1671-1637.2012.03.006
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Dynamics simulation models of coupler systems for freight locomotive

doi: 10.19818/j.cnki.1671-1637.2012.03.006
  • 1.

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

  • 2.

    School of Mechanical Engineering, University of Birmingham, Birmingham B152TT, West Midlands, UK

Funds:

National Natural Science Foundation of China 50775191

National Natural Science Foundation of China 51005190

More Information
  • Author Bio:

    WU Qing (1987-),Male,Nanchong,Sichuan,Doctoral Student of Southwest Jiaotong University,Research on Vehicle System Dynamics,+86-28-87601973,wuqing1943@126.com

    LUO Shi-hui (1964-),Male,Ganzhou,Jiangxi,Professor of Southwest Jiaotong University,PhD,+86-28-86466203, shluo@swjtu.cn

  • Received Date: 2011-11-22
  • Publish Date: 2012-06-25
    Abstract
  • The working principles of two types of coupler systems were analysed.Based on considering the friction pairs of coupler tails and real-time aligning shoulders, coupler system models were set up by using control system simulation method.Nonlinear draft gear with hysteresis characteristic was modelled by using table lookup method.DFC-E100 system and 13A/QKX-100 system were simulated in a train model consisting of two 8-axle locomotives and one simplified wagon.The theoretical calculation of carbody-stabilizing-coupler ability was performed.Calculation result indicates that the models can rationally reflect the dynamic behaviour of freight locomotive's coupler systems.The distinct angling behaviour of DFC-E100 system is only observed when buff forces are larger than a certain value, but the aligning shoulder of DFC-E100 system can effectively prevent coupler from excessive angling.The error of carbody-stabilizing-coupler ability between simulation value and field test value is 4.23%, and the error between theoretical calculation value and field test value is 10.65%.The friction pair of 13A/QKX100 system is key element in the control of coupler dynamic behaviour, and can prevent coupler from distinct angling under buff condition.

     

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