Coupling stability of couplers between locomotive and vehicle

ZOU Rui-ming; MA Wei-hua; LUO Shi-hui

Volume 16 Issue 6

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ZOU Rui-ming, MA Wei-hua, LUO Shi-hui. Coupling stability of couplers between locomotive and vehicle[J]. Journal of Traffic and Transportation Engineering, 2016, 16(6): 48-54.

Citation:

ZOU Rui-ming, MA Wei-hua, LUO Shi-hui. Coupling stability of couplers between locomotive and vehicle[J]. Journal of Traffic and Transportation Engineering, 2016, 16(6): 48-54.

ZOU Rui-ming, MA Wei-hua, LUO Shi-hui. Coupling stability of couplers between locomotive and vehicle[J]. Journal of Traffic and Transportation Engineering, 2016, 16(6): 48-54.

Citation:

ZOU Rui-ming, MA Wei-hua, LUO Shi-hui. Coupling stability of couplers between locomotive and vehicle[J]. Journal of Traffic and Transportation Engineering, 2016, 16(6): 48-54.

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Coupling stability of couplers between locomotive and vehicle

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

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Author Bio:
ZOU Rui-ming(1991-), male, doctoral student, +86-28-86466203, rmzou@outlook.com

LUO Shi-hui(1964-), male, professor, PhD, +86-28-86466203, shluo@home.swjtu.edu.cn
Received Date: 2016-06-13
Publish Date: 2016-12-25

Abstract

Abstract

In order to figure out the coupling stability of couplers between locomotive and vehicle, apolygonal contact model was proposed to simulate the contact and friction of coupling surfaces between two couplers, namely, the surface of coupler knuckles was modeled by polygon way, so the contact area was determined and discretized.The contact force was solved by using the elastic foundation model, and the corresponding friction force was determined by the normal contact force and relative tangential velocity.The reliability of the presented modeling method was verified by coupler connection contour for locomotives and rolling stock(TB/T 2950—2006), interference analysis and finite element calculation.A dynamics model of heavy haul train was built to reflect the dynamics performance of middle locomotive and the dynamic behaviors of its coupler and buffer device.The coupling stability of couplers between locomotive and vehicle was analyzed when train runs down a long down-gradient with slope of 1.2% and negotiates a curve with 300 mradius under different conditions.Analysis result indicates that the coupler forces have major effect on the relative motion between the coupling surfaces of couplers, and normal contact force is generated between coupling surfaces of couplers due to stable coupler force.Ifthere exist relative motion or the motion tendency between coupling surfaces of couplers, the relative motion of coupler is prevented by the generated tangential friction force.When coupler force is fluctuant or smaller, couplers are effortless in a state of free clearance, therefore, greater relative motion occurs because generating constraints are not sufficient.The maximum vertical relative displacement of the moment reaches to approximately 149.5 mm.About 4.5° of maximum relative angle is produced in horizontal plane to compensate the deflection behavior of the couplers when negotiates a curve with 300 mradius.
- locomotive,
- vehicle,
- dynamics simulation,
- coupler,
- coupling stability,
- polygonal contact model

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References(22)

References

[1]	YANG Jun-jie, LIU Jian-xin, LUO Shi-hui, et al. Test study on stability control of locomotive coupler in heavy haul combined train[J]. Journal of Southwest Jiaotong University, 2009, 44(6): 882-886. (in Chinese). doi: 10.3969/j.issn.0258-2724.2009.06.015
[2]	LUO Shi-hui, FENG Quan-bao, YANG Jun-jie. Research on dynamics of the HXD2 heavy-load locomotive bearing longitudinal compressive strength[J]. Railway Locomotive and Car, 2008, 28(S): 145-148, 177. (in Chinese). https://www.cnki.com.cn/Article/CJFDTOTAL-TDJC2008S1037.htm
[3]	MA Wei-hua, LUO Shi-hui, SONG Rong-rong. Coupler dynamic performance analysis of heavy haul locomotives[J]. Vehicle System Dynamics, 2012, 50(9): 1435-1452. doi: 10.1080/00423114.2012.667134
[4]	China Academy of Railway Sciences. Test report on the ten thousand tons combined train pulled by HX_D2 with DFCE100 coupler[R]. Beijing: China Academy of Railway Sciences, 2008. (in Chinese).
[5]	DURALI M, SHADMEHRI B. Nonlinear analysis of train derailment in severe braking[J]. Journal of Dynamic Systems, Measurement, and Control, 2003, 125(1): 48-53. doi: 10.1115/1.1541669
[6]	ZOU Xin-jun. Analysis of causes to 6separation accidents in locomotive and rolling stock on Daqin Line and suggestions[J]. Rolling Stock, 2008, 46(11): 39-40. (in Chinese). doi: 10.3969/j.issn.1002-7602.2008.11.014
[7]	WANG Fa-lin, LI Kan. Research on countermeasure to prevent the train coupling separation accidents[J]. Railway Locomotive and Car, 2004, 24(5): 52-53. (in Chinese). doi: 10.3969/j.issn.1008-7842.2004.05.019
[8]	ZHOU Wei-bing, LIU Yi-yang. Analysis of causes to separation of freight car couplers in operation and preventative measures[J]. Rolling Stock, 2006, 44(6): 42-43. (in Chinese). doi: 10.3969/j.issn.1002-7602.2006.06.014
[9]	COLE C, MCCLANACHAN M, SPIRYAGIN M, et al. Wagon instability in long trains[J]. Vehicle System Dynamics, 2012, 50(S1): 303-317.
[10]	CHERKASHIN U M, ZAKHAROV S M, SEMECHKIN A E. 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]. Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit, 2009, 223(2): 199-208. doi: 10.1243/09544097JRRT226
[11]	Transportation Safety Board of Canada. Railway investigation report R02C0050[R]. Ottawa: Transportation Safety Board of Canada, 2002.
[12]	WU Qing, LUO Shi-hui, XU Zi-qiang, et al. Coupler jackknifing and derailments of locomotives on tangent track[J]. Vehicle System Dynamics, 2013, 51(11): 1784-1800. doi: 10.1080/00423114.2013.830184
[13]	WU Qing, LUO Shi-hui, WEI Chong-feng, et al. Dynamics simulation models of coupler systems for freight locomotive[J]. Journal of Traffic and Transportation Engineering, 2012, 12(3): 37-43. (in Chinese). doi: 10.3969/j.issn.1671-1637.2012.03.008
[14]	XU Zi-qiang, LUO Shi-hui, MA Wei-hua, et al. Influence of locomotive key parameters on coupler rotation angle and locomotive running safety[J]. Journal of Traffic and Transportation Engineering, 2013, 13(3): 47-52. (in Chinese). http://transport.chd.edu.cn/article/id/201303007
[15]	XU Zi-qiang, MA Wei-hua, WU Qing, et al. Coupler rotation behaviour and its effect on heavy haul trains[J]. Vehicle System Dynamics, 2013, 51(12): 1818-1838. doi: 10.1080/00423114.2013.834369
[16]	XU Zi-qiang, MA Wei-hua, WU Qing, et al. Analysis of the rotation angle of a coupler used on heavy haul locomotives[J]. Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit, 2014, 228(8): 835-844.
[17]	YAO Yuan, LIU Xu, ZHANG Hong-jun, et al. The stability and mechanical characteristics of heavy haul couplers with restoring bumpstop[J]. Vehicle System Dynamics, 2014, 52(1): 26-44.
[18]	YAO Yuan, ZHANG Xiao-xia, ZHANG Hong-jun, et al. The stability mechanism and its application to heavy-haul couplers with arc surface contact[J]. Vehicle System Dynamics, 2013, 51(9): 1324-1341.
[19]	YAO Yuan, ZHANG Xiao-xia, ZHANG Hong-jun. Dynamic performances of an innovative coupler used in heavy haul trains[J]. Vehicle System Dynamics, 2014, 52(10): 1288-1303.
[20]	XU Ying-kui. Cause analysis and preventative measures of coupler separation of railway freight car[J]. Journal of Shenyang Institute of Engineering: Natural Science, 2012, 8(3): 266-269. (in Chinese). https://www.cnki.com.cn/Article/CJFDTOTAL-SYDL201203023.htm
[21]	HIPPMANN G. An algorithm for compliant contact between complexly shaped bodies[J]. Multibody System Dynamics, 2004, 12(4): 345-362.
[22]	DING Li-fen. Study on modelling the longitudinal dynamics of heavy haul train[D]. Beijing: Beijing Jiaotong University, 2012. (in Chinese).