Large DOF Coupler/Draft Gear System Models for Rail Vehicles

Abstract:

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.

• Periodical: Applied Mechanics and Materials (Volume 197)
• Pages: 381-385
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.197.381
• Online since: September 2012
• Authors: Qing Wu, Shi Hui Luo, Zi Qiang Xu, Wei Hua Ma, Chong Feng Wei
• Keywords: Coupler, Draft Gear, Dynamic, Large DOF, Modeling, Rail Vehicle

References

[1] Iwnicki S. Handbook of railway vehicle dynamics[M]. Taylor and Francis, London, 2006.

[2] Ma Weihua, Luo Shihui, etc. Dynamics Characteristic Analysis of Coupler and Buffer System of Heavy Haul Train [C]. International HeavyHaul Conference, Calgery, 2011.

[3] Transportation Safety Board of Canada. Railway Investigation Report R02C0050 [R]. TSB, Ottawa Canada,2002.

[4] Geike, Thomas. Understanding high coupler forces at metro vehicles [J].Vehicle System Dynamics,2009,(45)4:389-396.

DOI: 10.1080/00423110701215085

[5] C Cole, Y Q Sun. Simulated comparisons of wagon coupler systems in heavy haul trains [J]. Journal of Rail and Rapid Transit, 2006, 220:257-256.

DOI: 10.1243/09544097jrrt35

[6] YANG Junjie, etc. Test Study on Stability Control of Locomotive Coupler in Heavy Hual Combined Train [J]. Journal of Southwest Jiaotong University, 2009,(44)6: 882-886. (in Chinese )

[7] L.Cantone, R.Karbstein, etc. Train Dynamic Simulation-A New Approach [C]. 8th World Congress on Railway Research, Seoul, 2008.

[8] A Nasr, S Mohammandi. The effects of train brake delay time on in-train forces [J]. Journal of Rail and Rapid Transit, 224: 523-534.

DOI: 10.1243/09544097jrrt306

[9] SHEN Gang, XHOU Jing-song, etc. Study on Modelling Method for Train Dynamics [J]. Journal of Tongji University, 2004,(32)44:5941-8941. (in Chinese )

[10] Ansari,M. ,Esmaizadeh, etc. Longitudinal dynamics of freight trains [J]. Int. J. Heavy Vehicle Systems, 2009,(16)1/2: 102-131.

[11] Peter Cruber, Mohamed M. Bayoumi. Suboptimal Control Strategies for Multi-locomotive Powered Trains [J]. Transactions on Automatic Control, 1982, (AC-27)3:536-546.

DOI: 10.1109/tac.1982.1102986