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摘要: 分析了低速磁浮列车结构及其运动学关系, 利用多刚体动力学建模方法, 建立了低速磁浮列车的动力学模型, 分析了曲线通过时二系悬挂各构件的运动情况, 阐述了平行四边形机构在曲线通过中的重要作用。仿真结果表明: 二系悬挂系的平行四边形机构把横向力较平均地分配到各个模块上, 使得各个模块沿着曲线达到合理分布; 平行四边形机构减小了空气弹簧的横向力及纵向力, 减小了模块的摇头角, 有利于曲线通过与导向; 运行速度对滑台横移量有一定影响, 而轨道曲线半径是影响滑台滑动横移量的主要因素。Abstract: Low-speed maglev train structures and kinematical relationships were analyzed, its dynamics model was developed by using multi-rigid-body dynamics modeling method, the movements of different components of secondary suspension in curve negotiation were analyzed, and the significance of parallelogram mechanism in curve negotiation was explained. Simulation result shows that parallelogram mechanism averagely distributes lateral forces among modules, so that modules are distributed reasonably along the curve. Parallelogram mechanism decreases the lateral and longitudinal forces of air spring, and the yawing angles of modules, which is helpful for curve negotiation and guidance. Speed influences lateral displacement to a certain extent, while the curve radius of the track is the major factor.
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表 1 自由度
Table 1. Degrees of freedom
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[1] 张佩竹. 长沙磁悬浮试验线定线参数研究探讨[J]. 铁道工程学报, 2002(2): 6-10. https://www.cnki.com.cn/Article/CJFDTOTAL-TDGC200202002.htmZHANG Pei-zhu. Exploration on research of allocation parameters for Changsha maglev test track[J]. Journal of Rail way Engineering Society, 2002(2): 6-10. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-TDGC200202002.htm [2] 赵志苏, 尹力明, 罗昆. 磁浮列车转向机构运动分析与设计[J]. 机车电传动, 2000, 41(6): 11-13. https://www.cnki.com.cn/Article/CJFDTOTAL-JCDC200006003.htmZHAO Zhi-su, YI N Li-ming, LUO Kun. Motion analysis and design for yawing mechanismof maglev vehicle[J]. Electric Drive for Locomotives, 2000, 41(6): 11-13. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-JCDC200006003.htm [3] 曾佑文, 王少华. 三转向架磁悬浮车几何曲线通过分析[J]. 西南交通大学学报, 2003, 38(3): 282-285. https://www.cnki.com.cn/Article/CJFDTOTAL-XNJT200303009.htmZENG You-wen, WANG Shao-hua. Research on geometrical curve negotiating of three-truck maglev vehicle[J]. Journal of Southwest Jiaotong University, 2003, 38(3): 282-285. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-XNJT200303009.htm [4] 赵春发. 磁浮车辆系统动力学研究[D]. 成都: 西南交通大学, 2002. [5] 卜继玲, 付茂海, 严隽耄, 等. 常导吸引式低速磁悬浮车辆动态曲线通过性能研究[J]. 铁道学报, 2001, 23(1): 29-32. https://www.cnki.com.cn/Article/CJFDTOTAL-TDXB200101005.htmBUJi-ling, FU Mao-hai, YAN Jun-mao. Study on dynamic performance of the low-speed EMS maglev car in curve negotiation[J]. Journal of the China Rail way Society, 2001, 23(1): 29-32. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-TDXB200101005.htm [6] 邓永权. 磁浮列车静悬稳定性和仿真分析[D]. 成都: 西南交通大学, 2004. [7] 邓永权, 罗世辉, 梁红琴, 等. 基于SI MPACK的磁悬浮车辆耦合动力学性能仿真模型[J]. 交通运输工程学报, 2007, 7(1): 12-15. http://transport.chd.edu.cn/article/id/200701003DENG Yong-quan, LUO Shi-hui, LI ANG Hong-qin, et al. Si mulation model of maglev coupling dynamics performance based on SI MPACK[J]. Journal of Traffic and Transportation Engineering, 2007, 7(1): 12-15. (in Chinese) http://transport.chd.edu.cn/article/id/200701003 [8] 缪炳荣, 肖守讷, 罗世辉, 等. 磁悬浮车辆结构动力学建模与仿真[J]. 中国铁道科学, 2006, 27(1): 104-108. https://www.cnki.com.cn/Article/CJFDTOTAL-ZGTK200601020.htmMIAO Bing-rong, XIAOShou-ne, LUOShi-hui, et al. Modeling and si mulation of maglev vehicle structure dynamics[J]. China Railway Science, 2006, 27(1): 104-108. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-ZGTK200601020.htm [9] 赵春发, 翟婉明, 王其昌. 低速磁浮车辆曲线通过动态响应仿真分析[J]. 中国铁道科学, 2005, 26(3), 94-98. https://www.cnki.com.cn/Article/CJFDTOTAL-ZGTK200503020.htmZHAO Chun-fa, ZHAI Wan-ming, WANG Qi-chang. Si mu-lation analysis of the dynamic response of low-speed maglev vehicle curve negotiation[J]. China Rail way Science, 2005, 26(3): 94-98. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-ZGTK200503020.htm [10] BREZI NA W, LANGERHOLC J. Lift and side force on rectangular pole pieces in two di mensions[J]. Journal of Applied Physics, 1974, 45(4): 1869-1872. [11] 蒋海波, 罗世辉, 董仲美, 等. 低速磁浮列车迫导向机构的研究[J]. 内燃机车, 2007(4): 15-17. https://www.cnki.com.cn/Article/CJFDTOTAL-LRJX200704003.htmJI AN Hai-bo, LUO Shi-hui, DONG Zhong-mei, et al. Study of forced steering mechanism of low-speed maglev train[J]. Diesel Locomotives, 2007(4): 15-17. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-LRJX200704003.htm