Influence of locomotive key parameters on coupler rotation angle and locomotive running safety
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摘要: 针对列车车钩承压偏转行为, 分析了机车结构参数与车钩转角之间的关系, 通过建立由3节新型33 t轴重C0-C0轴式重载机车与2组具有钩肩特性、缓冲器迟滞特性的圆销钩缓装置组成的列车动力学模型, 研究承压工况下机车结构参数对车钩转角与列车运行性能的影响。计算结果表明: 在列车车钩自由转角为8°时, 承压时车钩的实际转角达不到8°, 此时车钩钩肩不发生作用, 稳钩力由机车二系止挡提供, 车钩横向力全部传递至轮对, 导致机车的轮轴横向力超标; 提高二系止挡间隙或降低止挡间距等参数, 可以增加车钩的转角, 减小车钩横向力, 降低轮轴横向力, 提高列车的运行安全性; 在重载机车车钩选型中, 应该考虑机车结构参数与车钩自由转角的匹配关系。Abstract: Aimed at coupler rotation performance under compressive condition, the relationship between locomotive structure parameters and coupler rotation angle was analyzed, a train dynamics model consisting of three new-type 33 t axle-load C0-C0 configuration heary-haul locomotives and two round-pin coupler systems with coupler shoulder characteristic and hysteretic draft gear was established, and the effect of locomotive key structure parameters on coupler rotation angle and train running performance was studied under compressive condition.Calculation result shows that when coupler free rotation angle is 8°, its actual rotation angle is less than 8° under longitudinal compression, coupler shoulder does not work, the coupler-stabilized force is provided by secondary stop, so locomotive suffers a significant lateral component force, which leads to wheelset lateral force out of limit. Increasing the clearance of secondary stop or decreasing the distance between front and rear stops can increase the rotation angle of coupler, decrease wheelset lateral force, at last improve the running safety of train. So the matching relationship between locomotive key structure parameters and coupler free rotation angle should be considered in the selecting couplers of heavy-haul train.
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表 1 机车主要技术参数
Table 1. Main technical parameters of locomotive
表 2 直线运行性能
Table 2. Running performance on tangent track
横向平稳性 垂向平稳性 轮轴横向力/kN 轮轨垂向力/kN 2.55 2.63 35 203 
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表 3 曲线运行性能
Table 3. Running performance on curved track
曲线半径/m 轮轴横向力/kN 脱轨系数 轮重减载率 摇头角/(°) 300 75 0.45 0.51 0.64 400 73 0.40 0.49 0.50
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[1] 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 [2] 杨俊杰, 刘建新, 罗世辉, 等. 重载组合列车机车车钩稳定控制试验[J]. 西南交通大学学报, 2009, 44(6): 882-886. doi: 10.3969/j.issn.0258-2724.2009.06.015YANG Jun-jie, LIU Jian-xin, LUO Shi-hui, et al. 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). doi: 10.3969/j.issn.0258-2724.2009.06.015 [3] MA Wei-hua, LUO Shi-hui, SONG Rong-rong. Dynamics characteristic analysis of coupler and buffer system of heavy haul train[C]//International Heavy Haul Association. The2011IHHA Specialist Technical Session. Calgary: International Heavy Haul Association, 2011: 162-168. [4] 中国铁道科学研究院. HX D 2型机车装用DFC-E100型钩缓装置试验总结报告[R]. 北京: 中国铁道科学研究院, 2008.China Academy of Railway Sciences. The test report on DFC-E100coupler systems in HX D 2locomotive[R]. Beijing: China Academy of Railway Sciences, 2008. (in Chinese). [5] Transportation Safety Board of Canada. Railway investigation report R02C0050[R]. Ottawa: Transportation Safety Board of Canada, 2002. [6] 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 [7] GEIKE T. Understanding high coupler forces at metro vehicles[J]. Vehicle System Dynamics, 2007, 45(4): 389-396. doi: 10.1080/00423110701215085 [8] 阳光武, 肖守讷, 张卫华. 列车曲线上制动时的安全性分析[J]. 铁道学报, 2009, 31(1): 35-39. https://www.cnki.com.cn/Article/CJFDTOTAL-TDXB200901009.htmYANG 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). https://www.cnki.com.cn/Article/CJFDTOTAL-TDXB200901009.htm [9] El-SIBAIE M. Recent advancements in buff and draft testing techniques[C]//China Railway Society. Fifth International Heavy Haul Railway Conference. Bejing: China Railway Society, 1993: 115-119. [10] COLE C. Improvements to wagon connection modelling for longitudinal train simulation[C]//OGHANNA W. Conference on Railway Engineering Proceedings: Engineering Innovation for a Competitive Edge. Rockhampton: Central Queensland University, 1998: 187-194. [11] COLE C, SUN Y Q. Simulated comparisons of wagon couplersystems in heavy haul trains[J]. Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit, 2006, 220(3): 247-256. doi: 10.1243/09544097JRRT35 [12] 王开云, 翟婉明, 封全保, 等. 重载机车车钩自由角对轮轨动态安全性能的影响[J]. 中国铁道科学, 2009, 30(6): 72-76. https://www.cnki.com.cn/Article/CJFDTOTAL-ZGTK200906013.htmWANG Kai-yun, ZHAI Wan-ming, FENG Quan-bao, et al. Effect of the coupler free angle on wheel/rail dynamic safety performance of heavy haul locomotive[J]. China Railway Science, 2009, 30(6): 72-76. (in Chinese). https://www.cnki.com.cn/Article/CJFDTOTAL-ZGTK200906013.htm [13] 马卫华, 宋荣荣, 揭长安, 等. 缓冲器阻抗特性对重载列车动力学性能的影响[J]. 交通运输工程学报, 2011, 11(2): 59-64. http://transport.chd.edu.cn/article/id/201102010MA Wei-hua, SONG Rong-rong, JIE Chang-an, et al. Influences of buffer impedance characteristics on dynamics performances for heavy haul train[J]. Journal of Traffic and Transportation Engineering, 2011, 11(2): 59-64. (in Chinese). http://transport.chd.edu.cn/article/id/201102010 [14] 马卫华, 杨俊杰, 罗世辉, 等. SS3B电力机车长大下坡道稳钩能力分析[J]. 铁道学报, 2010, 32(2): 109-113. https://www.cnki.com.cn/Article/CJFDTOTAL-TDXB201002021.htmMA Wei-hua, YANG Jun-jie, LUO Shi-hui, et al. Study on the coupler stability of locomotive SS3B running on the long heavy down grade[J]. Journal of the China Railway Society, 2010, 32(2): 109-113. (in Chinese). https://www.cnki.com.cn/Article/CJFDTOTAL-TDXB201002021.htm [15] 吴庆, 罗世辉, 魏冲锋, 等. 货运机车车钩缓冲装置动力学仿真模型[J]. 交通运输工程学报, 2012, 12(3): 37-43. http://transport.chd.edu.cn/article/id/201203005WU 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). http://transport.chd.edu.cn/article/id/201203005 [16] 杨俊杰. "1+1"两万吨组合列车模式下机车钩缓装置的承载特性与结构参数优化研究[D]. 北京: 北京交通大学, 2010.YANG Jun-jie. Study on carrying characteristic and parameter optimization of locomotive coupler-draft gear based on"1+1"20kt combined train mode[D]. Beijing: Beijing Jiaotong University, 2010. (in Chinese). -
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