新型中低速磁浮车辆动力学特性分析  

Analysis on dynamics characteristics of a newly mid-low speed maglev train model

作　　者：刘雨霏 左飞飞 张敏[1] 马卫华[1] 王爱彬 LIU Yufei;ZUO Feifei;ZHANG Min;MAWeihua;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1期64-70,共7页Electric Drive for Locomotives

基　　金：国家自然科学基金项目(51875483,52102442)

摘　　要：针对一种速度160 km/h新型中低速磁浮悬浮架,文章运用SIMPACK多体动力学软件建立了车辆的动力学模型,分析了该悬浮架在直线以及曲线工况下的动力学特性。结果表明,直线运行工况下车辆速度可以达到160 km/h,悬浮间隙、车体振动加速度等指标均符合要求,但在120 km/h时车辆各项指标有所恶化,为减小车体共振影响,对车体振动加速度进行了频率分析并给出优化建议。在曲线工况下,车辆的导向力、空簧横向位移及滑台位移等指标均在正常范围。研究结果证明新型中低速磁浮车辆的动力学性能符合要求,相关动力学结果可为新型悬浮架后续研究及工程化提供数据支持。This paper focuses on analyzing the dynamic characteristics of a newly designed mid-low speed maglev frame,capable of running at speeds up to 160 km/h,using a train dynamics model established by SIMPACK multi-body dynamics analysis software,under both straight track and curve conditions.The results showed that the train reached 160 km/h under the straight track condition,while meeting the required levitation gap,carbody vibration acceleration,and other performance indicators.However,the performance indicators of the train deteriorated at 120 km/h.A frequency analysis was conducted specifically on carbody vibration acceleration,leading to optimization suggestions aimed at mitigating the impact of carbody resonance.Furthermore,under the curve condition,the train parameters including guiding force,lateral displacement of the air spring,and sliding table displacement all remained within the normal ranges.The study findings demonstrate the compliance of this newly mid-low speed maglev train with the requirements of the dynamics performance.The relevant dynamics results can provide data support for the follow-up research and subsequent engineering applications of this maglev frame.

关 键 词：中低速磁浮车辆 悬浮架结构 动力学 车体振动 城市轨道交通 

分 类 号：U237[交通运输工程—道路与铁道工程]