构架式磁浮车辆悬浮冗余性能分析  

Analysis of suspension redundancy performance for frame-type maglev vehicle

作　　者：刘雨霏 张敏[1] 马卫华[1] 王爱彬 LIU Yufei;ZHANG Min;MA Weihua;WANG Aibin(State Key Laboratory of Rail Transit Vehicle System,Southwest Jiaotong University,Chengdu,Sichuan 610031,China;CRRC Changchun Railway Vehicles Co.,Ltd.,Changchun,Jilin 130062,China)

机构地区：[1]西南交通大学轨道交通运载系统全国重点实验室,四川成都610031 [2]中车长春轨道客车股份有限公司,吉林长春130062

出　　处：《机车电传动》2024年第5期117-123,共7页Electric Drive for Locomotives

基　　金：国家自然科学基金项目(52102442);四川省自然科学基金青年基金项目(2022NSFSC1954)。

摘　　要：为了提高中低速磁浮列车的运行安全性和可靠性,某公司设计了一种速度160 km/h、具有整体式悬浮框的构架式磁浮车辆。文章以该整体式悬浮框结构的构架式磁浮车辆为研究对象,研究其悬浮冗余有效性。基于Simpack多体动力学软件建立了车辆的动力学模型,分析构架式磁浮车辆在单点悬浮电磁铁失效时的动力学特性;对比了不同速度、不同位置电磁铁失效对车辆平稳性的影响;研究了不同的线圈串接方式下构架式磁浮车辆在电磁铁单点失效时的振动响应。结果显示,在电磁铁单点失效条件下,车辆各项指标均发生突变;不同失效速度下车体横向平稳性指标变化不大且均在优秀范围,而垂向平稳性指标随着失效速度的增加而增大,但在速度为100 km/h时仍保持优秀水平;不同位置的电磁铁失效对车辆平稳性影响差异不大;在采用一位线圈和三位线圈串接的减振措施后,构架式磁浮车辆的空簧垂向位移和悬浮模块振动加速度明显变小,减小了电磁铁的倾覆作用。A frame-type maglev vehicle model featuring an integral suspension frame and a design speed of 160 kilometers per hour has been designed by a train manufacturer as an upgrade to medium-low speed maglev trains,enhancing operational safety and reli-ability.This paper focuses on evaluating the effectiveness of suspension redundancy in this vehicle model.A vehicle dynamics model was established based on Simpack multi-body dynamics software to analyze the dynamic characteristics in single point suspension elec-tromagnet failure scenarios.The study compared the effects of electromagnet failures at various speeds and positions on riding stability.Additionally,vibration responses to single point electromagnet failures were investigated with different series configurations of coil con-nections.The results show that,under single electromagnet failures,all vehicle indicators exhibit sudden changes.The lateral stability of the vehicle body under failure conditions did not change significantly across different speeds,remaining within the excellent range.Al-though vertical stability increased with higher speeds under failure conditions,it still remained at an excellent level even at 100 km/h.The position of electromagnet failures had little impact on vehicle stability.The vertical displacement of the air spring and the vibration acceleration of the suspension module were significantly reduced by implementing a vibration reduction measure that involved connect-ing coils at the first and third positions in series,which leads to the mitigated overturning effect of the electromagnets.

关 键 词：中低速 磁浮列车 构架式磁浮 动力学特性 电磁铁失效 悬浮冗余 

分 类 号：U237[交通运输工程—道路与铁道工程]