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

LIU Yufei; ZUO Feifei; ZHANG Min; MAWeihua; WANG Aibin

doi:10.13890/j.issn.1000-128X.2024.01.103

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

Railway Rolling Stock | 更新时间：2024-08-02

- Analysis on dynamics characteristics of a newly mid-low speed maglev train model
- Electric Drive for Locomotives Issue 1, Pages: 64-70(2024)
- 作者机构：
  
  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
- 作者简介：
- 基金信息：
- DOI：10.13890/j.issn.1000-128X.2024.01.103
  CLC： U237
- Published：10 January 2024，
  
  Received：27 September 2022，
  
  Revised：20 October 2023，
- 稿件说明：
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刘雨霏, 左飞飞, 张敏, 等. 新型中低速磁浮车辆动力学特性分析[J]. 机车电传动, 2024(1): 64-70.

LIU Yufei, ZUO Feifei, ZHANG Min, et al. Analysis on dynamics characteristics of a newly mid-low speed maglev train model[J]. Electric drive for locomotives,2024(1): 64-70.
刘雨霏, 左飞飞, 张敏, 等. 新型中低速磁浮车辆动力学特性分析[J]. 机车电传动, 2024(1): 64-70. DOI：10.13890/j.issn.1000-128X.2024.01.103.

LIU Yufei, ZUO Feifei, ZHANG Min, et al. Analysis on dynamics characteristics of a newly mid-low speed maglev train model[J]. Electric drive for locomotives,2024(1): 64-70. DOI：10.13890/j.issn.1000-128X.2024.01.103.

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。

Abstract

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

un‐ der 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 indica‐ tors 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 parame‐ ters 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 perfor‐ mance. 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

Keywords

mid-low speed maglev trainmaglev frame structuredynamicscarbody vibrationurban rail transit

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