采用新型悬浮架的小运量中低速磁浮车辆动力学分析  

Dynamics Analysis of Medium-and Low-Speed Maglev Vehicle with Small Capacity Using a New Levitation Frame

作　　者：张一敏 胡俊雄 牟翰林 华晓连 马卫华[1] ZHANG Yimin;HU Junxiong;MOU Hanlin;HUA Xiaolian;MA Weihua(State Key Laboratory of Rail Transit Vehicle System,Southwest Jiaotong University,Chengdu 610031,China;China Railway Siyuan Survey and Design Group Co.,Ltd.,Wuhan 430063,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,成都610031 [2]中铁第四勘察设计院集团有限公司,武汉430063

出　　处：《铁道标准设计》2024年第12期196-202,210,共8页Railway Standard Design

基　　金：国家自然科学基金青年基金项目(52102442);四川省科技计划项目(2021YJ0002)。

摘　　要：随着旅游专线等客运需求的增加,小运量磁浮的应用愈发广泛。为探究一种适用于1400 mm轨距,采用新型悬浮架的小运量中低速磁浮车辆动力学性能,基于SIMPACK软件建立刚柔耦合动力学模型,仿真计算直线行驶振动状态和曲线通过能力,从振动加速度、曲线通过性能等方面与采用既有悬浮架方案的中低速磁浮车辆动力学性能进行对比。结果表明:直线工况下,采用新型悬浮架的磁浮车辆的悬浮间隙波动值相比于既有悬浮架方案有明显差异,但均在安全范围内。2种方案的车体和悬浮架振动加速度无明显差异;R50 m小半径曲线通过时,与既有悬浮架方案相比,采用新型悬浮架的磁浮车辆的侧滚角较小,最大侧滚角为0.97°,空簧横向位移较大,最大值为7 mm;R550 m中半径曲线通过时,新型悬浮架方案与既有悬浮架方案相比,车体侧滚角和横移量无明显差异,最大车体侧滚角为0.65°,最大车体横移量为23 mm,前者的空簧横向位移大于后者,最大值为10 mm。仿真分析表明新型悬浮架方案具有良好的直线和曲线通过性能。With the increasing demand for passenger transportation such as tourism railways,the application of small-capacity maglev vehicles is becoming more widespread.To investigate the dynamic performance of a small-capacity,medium-and low-speed maglev vehicle with a new levitation frame,suitable for a 1400 mm track gauge,a rigid-flexible coupling dynamic model was established using SIMPACK software.Simulations calculated the straight-line vibration state and curve-passing capability,comparing the dynamic performance of the medium-and low-speed maglev vehicle with the existing levitation frame,focusing on vibration acceleration and curve-passing performance.The results showed that the levitation gap fluctuation of the new levitation frame under straight-line travel conditions was significantly different from that of the existing levitation frame structure,but both remained within the safe range.There was no significant difference in vibration acceleration of the vehicle body and the levitation frame between the two structures.When passing through the R50 m small-radius curve,compared with the existing levitation frame structure,the maglev vehicle with the new levitation frame had a smaller roll angle,with a maximum value of 0.97°,and a larger air spring lateral displacement,with a maximum value of 7 mm.When passing through the R550 m medium-radius curve,there was no significant difference in the body roll angle and lateral displacement between the two levitation frame structures.The maximum roll angle of the vehicle body was 0.65°,and the maximum lateral displacement was 23 mm.The lateral displacement of the air spring in the new frame structure was larger than that in the existing one,with a maximum value of 10 mm.The simulation analysis shows that the new levitation frame has good straight-line and curve-passing performance.

关 键 词：中低速磁浮车辆 小运量 悬浮架 刚柔耦合 动力学 防侧滚架装置 

分 类 号：U237[交通运输工程—道路与铁道工程] U270[机械工程—车辆工程]