中低速磁浮车辆侧向通过道岔动力学性能影响因素分析
赵逸凡，赵春发*，彭也也，冯洋
（西南交通大学 牵引动力国家重点实验室，四川 成都 610031）
摘要：为了探究中低速磁浮车辆侧向通过道岔时动力学性能的影响因素，采用UM软件建立了中低速磁浮车辆－侧向位道岔耦合动力学模型，车辆动力学模型中详细考虑了支承台、迫导向机构、电磁铁横向滑橇以及主动控制的PID悬浮控制系统，同时建立了考虑主动梁、从动梁、角平分装置以及F轨的磁浮道岔有限元模型。采用长沙磁浮快线提速试验数据验证车辆动力学模型后，对比分析了10 km/h速度工况下角平分装置以及滑动支承台行程对于磁浮车辆侧向过岔时系统动力学响应的影响。仿真结果表明，若道岔连接处未设置角平分装置，系统响应将整体增大，其中车体前端横向加速度幅值增大约40%。扩大滑台行程30 mm后，系统的横向响应明显减小，电磁铁横移量减小10.70 mm，可较为有效的避免磁轨机械接触以及悬浮失稳等情况。综合考虑磁浮车辆侧向过岔的动力学性能，在道岔连接处设置角平分装置可有效提高车辆运行时的平稳性与安全性，同时在实际情况允许下可增大滑台行程进一步优化侧向过岔时的系统响应。
关键词：磁浮车辆；关节型道岔；侧线；角平分装置；滑动支承台
中图分类号：U237；U213.6 文献标志码：A doi：10.3969/j.issn.1006-0316.2022.08.006
文章编号：1006-0316 (2022) 08-0030-09
Analysis of Factors Affecting Dynamic Performance of Medium-Low Speed Maglev Vehicles When Passing Through the Switch of Branch Route
ZHAO Yifan，ZHAO Chunfa，PENG Yeye，FENG Yang
( State Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu 610031, China )
Abstract：In order to investigate the influencing factors of dynamic performance of medium-low speed maglev vehicles when passing through the switch of branch route, the coupling dynamics model of medium-low speed maglev vehicle on the switch of branch route is established by using the UM software. In the vehicle dynamics model, the support platform, forced steering mechanism, lateral skid of the electromagnet and the PID suspension control system of active control are considered in detail. At the same time, the finite element model of the switch including the long-span girder, two short-span girders, angle bisector and F-rail is established. After the vehicle dynamics model is verified by the field measured data of Changsha maglev express, the effect of the angle bisector and the travel of the sliding support platform on the system dynamics response when the maglev vehicle is passing through the switch are compared and analyzed under the speed condition of 10km/h. The simulation results show that if the angle bisector is not set, the system response will increase and the amplitude of lateral acceleration at the front end of the vehicle body will increase by about 40%. After expanding the travel of the sliding support platform by 30mm, the lateral response of the system is significantly reduced, and the lateral displacement of electromagnet is reduced by 10.70mm, which can effectively avoid the mechanical contact of F-rail and suspension instability. Setting the angle bisector based on the comprehensive consideration of the dynamic performance of maglev vehicle when crossing the switch can effectively improve the stability and safety of vehicle operation. At the same time, if the actual situation allows, the travel of sliding support platform can be increased to further optimize the system response.
Key words：maglev train；joint switch；branch route；angle bisector；sliding support platform
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收稿日期：2022-03-04
基金项目：国家重点研发计划项目子课题（2016YFB1200601）；湖南创新型省份建设专项（2020GK2084，2020GK2072）
作者简介：赵逸凡（1997－），男，山东日照人，硕士研究生，主要研究方向为磁浮车辆—桥梁耦合动力学，E-mail：2487797822@qq.com。*通讯作者：赵春发（1973－），男，湖北仙桃人，博士，研究员，主要研究方向为轨道交通工程动力学，E-mail：fyswjtu@outlook.com。
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