The Curving Behaviour of Heavy-Haul Locomotive Couplers


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Two types of typical heavy-haul locomotive coupler models were presented, one is round-pin coupler with shoulder-limit, and another is flat-pin coupler with frictional tail pairs and stop-limit, both of them adapting nonlinear hysteresis buffer models. Utilizing a train model consists of 2 detailed locomotives and 1 simplified freight wagon, curving behaviour of different couplers were studied. The results show that, the actual curving behaviour of different couplers could be accurately simulated by the established coupler dynamics models. This paper will play a promoting role for analyzing actual heavy-haul locomotive running behaviours and safety.



Edited by:

Yandong Wang




Z. Q. Xu et al., "The Curving Behaviour of Heavy-Haul Locomotive Couplers", Applied Mechanics and Materials, Vol. 197, pp. 409-414, 2012

Online since:

September 2012




[1] El-Sibaie, M . Recent Advancements in Buff and Draft Testing Techniques. [C] Fifth International Heavy Haul Conference, Bejing, (1993).


[2] Buff and Draft Forces in the presence of large coupler angling-Association of American railroads vehicle track systems newsletter [J]. Railway Age, 1990, March.

[3] YANG Junjie, LIU Jianxin, LUO Shihui, FENG Quanbao. 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).

[4] Ma Weihua, Luo Shihui, Song Rongrong. Dynamics Characteristic Analysis of Coupler and Buffer System of Heavy Haul Train [C] 2011 International Heavy Haul Conference, Calgary, (2011).


[5] NCR, Datong Electric Locomotive Co., Ltd. The Report on Research & Improvement of The HXD2 Coupler System [R]. Datong: NCR, Datong Electric Locomotive Co., Ltd, (2008).

[6] Transportation Safety Board of Canada. Railway Investigation Report R02C0050[R]. Ottawa: TSB Canada, (2002).

[7] U M Cherkashin, S M Zakharov, A E Semechkin. An overview of rolling stock and track monitoring systems and guidelines to provide safety of heavy and long train operation in the Russian railways [J] Journal of Rail and Rapid Transit, 2009, 223(S): 199-208.


[8] M Mc Clanachan, C Cole, D Roach, B Scown. An Investigation of the Effect of Bogie and Wagon Pitch Associated with Longitudinal Train Dynamics [J]. Vehicle System Dynamics, 1999, s33: 374-385.

[9] S A Simson, C Cole. Idealized steering for hauling locomotives [J]. Journal of Rail and Rapid Transit, 2007, 221: 227-236.


[10] YANG Guang-wu, XIAO Shou-ne, ZHANG Wei-hua. Analysis on Safety of Train Braking on Curves [J]. Journal of the China Railway Society, 2009, 31(1): 35-39. (in Chinese).

[11] P. Belforte, F. Cheli, G. Diana, S. Melzi. Numerical and experimental approach for the evaluation of severe longitudinal dynamics of heavy haul fright trains [J]. Vehicle System Dynamics, 2008, 46(S): 937-955.


[12] F. Cheli, S. Melzi. Experimental characterization and modeling of a side buffer for freight trains [J]. Journal of Rail and Rapid Transit, 2010, 224: 535-546.


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