轴箱内置地铁车辆在小半径曲线上的运行稳定性研究  

Operation stability of axle-box integrated metro vehicles running on small radius curved tracks

作　　者：霍子伟 文永蓬[1,2,3] 钟硕乔 涂春云 楼博臻 HUO Ziwei;WEN Yongpeng;ZHONG Shuoqiao;TU Chunyun;LOU Bozhen(School of Urban Railway Transportation,Shanghai University of Engineering Science,Shanghai 201620,China;Shanghai Engineering Research Centre for Vibration and Noise Control Technologies in Railway Transportation,Shanghai 201620,China;State Key Laboratory of Rail Transit Vehicle System,Southwest Jiaotong University,Chengdu 610031,China)

机构地区：[1]上海工程技术大学城市轨道交通学院,上海201620 [2]上海市轨道交通振动与噪声控制技术工程研究中心,上海201620 [3]西南交通大学轨道交通运载系统全国重点实验室,成都610031

出　　处：《振动与冲击》2024年第18期121-130,144,共11页Journal of Vibration and Shock

基　　金：国家自然科学基金项目(52202477);西南交通大学轨道交通运载系统全国重点实验室开放课题(TPL2103);上海市轨道交通结构耐久与系统安全重点实验室开放基金(R202204);上海市自然科学基金项目(15ZR1419200)。

摘　　要：轨道车辆技术的发展对转向架轻量化提出了更高的要求,采用轴箱内置转向架技术实现轻量化将是我国未来轨道车辆发展的重要手段之一。为了提升轴箱内置地铁车辆在曲线轨道上的运行稳定性,针对地铁小半径曲线多、曲线过渡段短的特点,建立了采用内置轴箱的地铁车辆曲线轨道通过动力学模型;针对不同轴箱布置方式,对比分析了地铁车辆在曲线运行时的特性,并探讨了一系纵向刚度对轴箱内置地铁车辆运行稳定性的影响;进一步解决轴箱内置地铁车辆的曲线通过性和运行稳定性的矛盾,指出了安装抗蛇行减振器的必要性。研究结果表明:与轴箱外置地铁车辆相比,轴箱内置地铁车辆在曲线轨道上具有较好的曲线通过能力,但运行稳定性较差;安装抗蛇行减振器并选取适当的一系纵向刚度,能够解决轴箱内置地铁车辆在曲线通过时容易失稳的问题。论文工作对于发展轴箱内置转向架技术、实现转向架轻量化具有重要的参考价值。The development of railway vehicle technology has imposed higher demands on lightweight bogies.The adoption of axle-box integrated bogie technology to achieve lightweight construction will be one of the important means for the future development of rail vehicles in China.To improve the operation stability of subway vehicles equipped with axle-box integrated bogie running on curved tracks,considering the characteristics of subway lines with numerous tight curves and short transition sections,a dynamic model was establised for the subway vehicle with built-in axle boxes passaging on curved tracks.By comparing and analyzing the characteristics of subway vehicles during curve negotiation with different axle-box arrangements,the impact of longitudinal stiffness on the running stability of subway vehicles with integrated axle-box was explored.Additionally,the necessity of installing yaw dampers to further resolve the contradiction between the curve passing ability and the running stability of metro vehicles with integrated axle-box on curve tracks was pointed out.The research results demonstrate that,compared to subway vehicles with externally mounted axle-box,subway vehicles with integrated axle-box possess better ability of curve navigation but exhibit poorer running stability on curved tracks.Installing yaw damper and selecting appropriate longitudinal stiffness can address the instability issue faced by subway vehicles with axle-box integrated bogie during passaging on curved tracks.The work provides valuable insights for the development of axle-box integrated bogie technology and the realization of lightweight metro vehicles.

关 键 词：地铁车辆 轴箱内置转向架 小半径曲线 运行稳定性 一系纵向刚度 抗蛇行减振器 

分 类 号：U270.1[机械工程—车辆工程]