Large DOF Coupler/Draft Gear System Models for Rail Vehicles

Qing Wu*, Shihui Luo, Ziqiang Xu, Weihua Ma, Chongfeng Wei

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


Aiming at accurate predictions of coupler/daft gear systems' dynamic behaviour. Based on the analysis of structural and kinematic relations of two typical systems, hysteretic nonlinear draft gear models and 9DOF (Degree of freedom) detailed coupler/draft gear system models were developed. Frictional pairs on coupling surfaces and coupler tails along with interactive aligning shoulder models were integrated into system models. Utilizing two detailed locomotive models simulations were performed on a section of special track to validate the rationalities of coupler/draft gear system models. Simulation results indicate that all parts in coupler/draft gear system models can fullfill their roles, and the system models themselves can reproduce the run-time behaviour of coupler/draft gear systems with high reliability and accuracy.

Original languageEnglish
Pages (from-to)381-385
Number of pages5
JournalApplied Mechanics and Materials
Publication statusPublished - 01 Sep 2012
Externally publishedYes
EventInternational Conference on Mechanical Science and Engineering, ICMSE 2012 - Beijing, China
Duration: 20 Jul 201222 Jul 2012

Bibliographical note

Copyright 2012 Elsevier B.V., All rights reserved.


  • Coupler
  • Draft gear
  • Dynamics
  • Large DOF
  • Modelling
  • Rail vehicle

ASJC Scopus subject areas

  • Engineering(all)


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