1.Locomotive & Car Research Institute, China Academy of Railway Sciences Corporation Limited, Beijing 100081, China;
2.Technology Center, CRRC Datong Co., Ltd., Datong 037038, China
Abstract：This paper proposes a simulation method for the dynamic response of the compressed 102-type coupler and draft gear based on test data, and then studies the dynamic performance of the heavy-haul locomotive and its 102-type coupler and draft gear for the 10,000-ton heavy-haul train with double locomotive traction marshalling. Firstly, based on the structural characteristics and compressed stability mechanism of 102-type coupler and draft gear, the weighted discrete method is used to simplify the draft gear into multiple impedance force elements with the same hysteresis characteristics, and the shear stiffness is introduced to consider the shear effect between these impedance force elements. By this way, the dynamic model of 102-type coupler and draft gear is established to simulate the one-side compressed characteristics of the coupler shoulder and draft gear accurately. And then the model of 10,000-ton train with the marshalling of “master locomotive + re-connected locomotive + freight vehicle + dummy freight train” is developed by using the substructure method; Then the shear stiffness between the discrete impedance force elements is confirmed and this train dynamic model is also verified by comparing the simulation results with test data. Finally, the influences of track conditions, structural parameters and locomotive electrical braking forces on the train dynamics response and running safety are calculated. The results indicate that the large locomotive electric braking forces on small radius curves are very dangerous for the train running safety; With the increases of the coupler free angle and the lateral stiffness of locomotive secondary suspension, the coupler rotation angle and locomotive running safety index increase gradually, but too large lateral stiffness may strength the wheel-rail lateral interaction.
张志超1,吕凯凯1, 储高峰1, 齐红瑞2, 汪方文1. 重载机车102型钩缓装置动态模拟方法与动力学性能研究[J]. 振动与冲击, 2024, 43(2): 12-21.
ZHANG Zhichao1，Lv Kaikai1，CHU Gaofeng1，QI Hongrui2，WANG Fangwen1. Simulation method and dynamic performances research of the heavy-haul locomotive and its 102-type coupler and draft gear. JOURNAL OF VIBRATION AND SHOCK, 2024, 43(2): 12-21.
[1] 黄成荣, 赵云生, 狄威, 孙新宇, 刘凤刚. 重载货运内燃机车钩缓系统研究[J]. 中国铁道科学, 2011, 32(6):71-76.
HANG Chengrong, ZHAO Yunsheng, DI Wei, Sun Xinyu, LIU Fenggang. Research on the Coupler and Draft Gear of Heavy-Haul Freight Diesel Locomotive[J]. China Railway Science, 2011, 32(6):71-76. (in Chinese)
[2] 晏新凯, 魏伟. 机车再生制动力分布对重载组合列车纵向冲动影响研究[J]. 振动与冲击, 2021, 40(22): 161-166.
Yan Xinkai, Wei Wei. Influences of locomotive regenerative braking force distribution on the longitudinal impluse of heavy haul combined trains[J]. Journal of Vibration and Shock, 2011, 32(6):71-76. (in Chinese)
[3] Cole Colin, Mc Clanachen Mitchell, Spiryagin Maksym, YAN Quansun. Wagon instability in long trains [J]. Vehicle System Dynamics, 2012, 50(sup1): 303–317.
[4] WU Qing, LUO Shihui, XU Ziqiang, MA Weihua. Coupler jackknifing and derailments of locomotives on tangent track [J]. Vehicle System Dynamics, 2013, 51(11):1784-1800.
[5] ZhANG Zhichao, LI Gu, CHU Gaofeng, ZU Honglin. Dynamic performance analysis of heavy-haul locomotives running through turnout branches with electric brake [J]. Vehicle System Dynamics, 2020, 58(7):1057-1075.
[6] CHEN Daoxing. Derailment risk due to coupler jack-knifing under longitudinal buffer force [J]. Proceedings of the Institution of Mechanical Engineers.Part F：Journal of Rail and Rapid Transit，2010, 224:483-490.
[7] XU Ziqiang, MA Weihua, WU Qing, LUO Shihui Analysis of the rotation angle of a coupler used on heavy haul locomotives [J]. Journal of Rail and Rapid Transit, 2014, 228(8): 835-844.
[8] GUO Lirong, WANG Kaiyun. Analysis of coupler jackknifing and its effect on locomotives on a tangent track [J]. Journal of Rail and Rapid Transit, 2017, 232(5): 1559-1573.
[9] 中国铁道科学研究院. 唐呼线HXD2型新八轴机车双机重联牵引单元万吨列车适应性试验[R]. 北京:中国铁道科学研究院机车车辆研究所, 2018.
[10] 张志超, 李谷, 储高峰等. 重载机车扁销钩缓装置的受压稳定性[J]. 中国铁道科学, 2015, 36(4):101-107.
ZHANG Zhichao, LI Gu, CHU Gaofeng, ZU Honglin. Compressive Stability of Flattened Knuckle Pivot Pin Couple of Heavy Haul Locomotive[J]. China Railway Science, 2015, 36(4):101-107. (in Chinese)
[11] 邹瑞明, 张志超, 马卫华. 基于多边形接触模型的内电车钩建模研究[J]. 铁道学报, 2016, 38(3): 42-47.
ZOU Ruiming, ZHANG Zhichao, MA Weihua. Research on ND Coupler Modeling Based on Polygonal Contact Model [J]. Journal of the China Railway Society, 2016, 38(3): 42-47. (in Chinese)
[12] 张江田, 仝雷, 郭力荣, 纪天成. 重载机车二系横向止挡纵向间距对车钩受压稳定性的影响[J]. 机车电传动, 2017, 05:26-29.
ZHANG Jiangtian, TONG Lei, GUO Lirong, JI Tiancheng. Effect of Longitudinal Distance of Secondary Lateral Stoppers on Coupler Compressive Stability of Heavy Haul Locomotives [J]. Electric Drive for Locomotives, 2017, 05:26-29. (in Chinese)
[13] 赵旭宝, 魏伟, 董靓瑜, 李静. 弹性胶泥缓冲器关键参数对快捷列车纵向冲动的影响[J]. 振动与冲击, 2022, 41(05): 99-104+113.
Zhao Xubao, Wei Wei, Dong Liangyu, Li Jing. Effects of key parameters of elastic polymer draft gear on longitudinal impulse of rapid speed wagon[J]. Journal of Vibration and Shock, 2022, 41(05): 99-104+113. (in Chinese)
[14] 赵旭宝, 魏伟, 刘爽, 张渊. 基于改进PSO算法的弹性胶泥缓冲器动力学建模研究[J]. 振动与冲击, 2020, 39(24): 107-112+155.
Zhao Xubao, Wei Wei, Liu Shuang, Zhang Yuan. Dynamics modeling study of elastic polymer draft gear based on an improved particle swarm optimization algorithm[J]. Journal of Vibration and Shock, 2020, 39(24): 107-112+155. (in Chinese)
[15] 罗世辉, 封全保. 承受纵向压力时HXD2重载机车动力学问题研究[R]. 成都: 西南交通大学机车车辆研究所, 2008.
[16] YAO Yuan, LIU Xu, ZHANG Hongjun, LUO Shihui. The stability and mechanical characteristics of heavy haul couplers with restoring bumpstop [J]. Vehicle System Dynamics, 2014, 52(1):26-44.
[17] 曲天威, 许自强, 马卫华. 圆销车钩自由转角与车体参数匹配性的研究[J]. 西南交通大学学报, 2015, 50(2):247-255.
QU Tianwei, XU Ziqiang, MA Weihua. Matching between Free Angle of Round-Pin Coupler and Carbody Structure Parameters [J]. Journal of Southwest Jiaotong University, 2015, 50(2):247-255. (in Chinese)
[18] 中国铁道科学研究院集团有限公司. HXD2型技术提升机车压钩稳定性试验[R]. 北京:中国铁道科学研究院机车车辆研究所, 2020.
[19] 卢成壮, 李静媛, 周邦阳, 李毅, 赫荣辉, 王鹏. 金属橡胶的刚度特性和阻尼试验研究[J]. 振动与冲击, 2017, 36(08): 203-208.
Lu Chengzhuang, Li Jingyuan, Zhou Bangyang, Li Yi, Hao Ronghui, Wang Peng. An experimental study on stiffness characteristics and damping of metal rubber[J]. Journal of Vibration and Shock, 2017, 36(08): 203-208. (in Chinese)
[20] 常宇健, 田沃沃, 陈恩利, 申永军, 邢武策. 基于分数阶微分的金属橡胶迟滞非线性动力学模型[J]. 振动与冲击, 2020, 39(14): 233-241.
Chang Yujian, Tian Wowo, Chen Enli, Shen Yongjun, Xin Wuce. Dynamic model for the nonlinear hysteresis of metal rubber based on the fractional-order derivative[J]. Journal of Vibration and Shock, 2020, 39(14): 233-241. (in Chinese)
