Coherence Analysis between Vehicle Vibration Response of EMS Maglev Vehicles and Track Irregularities

Bo WANG; Shihui LUO; Qi SUN; Keren WANG; Weihua MA

doi:10.13890/j.issn.1000-128x.2020.02.114

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Coherence Analysis between Vehicle Vibration Response of EMS Maglev Vehicles and Track Irregularities

Research & Development | 更新时间：2021-12-10

- Coherence Analysis between Vehicle Vibration Response of EMS Maglev Vehicles and Track Irregularities
- Electric Drive for Locomotives Issue 2, Pages: 113-117(2020)
- 作者机构：
  
  1.西南交通大学　牵引动力国家重点实验室，四川　成都　610031
  2.西南交通大学　机械工程学院，四川　成都　610031
- 作者简介：
- 基金信息：
- DOI：10.13890/j.issn.1000-128x.2020.02.114
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Bo WANG, Shihui LUO, Qi SUN, et al. Coherence Analysis between Vehicle Vibration Response of EMS Maglev Vehicles and Track Irregularities. [J]. Electric Drive for Locomotives (2):113-117(2020)
DOI：

Bo WANG, Shihui LUO, Qi SUN, et al. Coherence Analysis between Vehicle Vibration Response of EMS Maglev Vehicles and Track Irregularities. [J]. Electric Drive for Locomotives (2):113-117(2020) DOI： 10.13890/j.issn.1000-128x.2020.02.114.

摘要

为探究EMS型磁浮列车车体振动响应的敏感波长，采用PID悬浮控制法建立了中低速磁浮试验车动力学模型，并按照相干性原理构建了不平顺与车体振动的相干函数。通过仿真分析发现：相同速度下，磁浮车前后端车体振动加速度的敏感波长存在一定的差异，前端大于后端；随着速度的增加，磁浮车前后车体振动加速度的敏感波长和相干函数的最大值几乎都在增加；随着速度的增加，车体横向加速度的相干函数大于0.8的波长范围增加。同时确定了引起车体振动的主要激励波长，其中车体的横向振动响应主要是由波长在3~9 m范围的轨道方向不平顺引起的，车体的垂向振动响应是由波长在10 m左右以及波长在2.8 m时的高低不平顺引起的。

Abstract

In order to explore the sensitive wavelength of vibration response of EMS maglev vehicles, the dynamic model of medium-low velocity maglev experimental vehicle was established by using PID levitation control method, and the functional relationship between track irregularity and vehicle vibration response of maglev vehicle based on the principle of coherence was constructed. Through simulation analysis, it was found that there were certain differences in the sensitive wavelengths of vibration acceleration at the front and rear of the maglev vehicle at the same speed, and the front was larger than the rear; with the increase of speed, the maximum value of the sensitive wavelength and coherence function of the vibration acceleration of the front and rear of the maglev vehicle was almost increasing and the lateral acceleration range of wavelength of the car body whose coherence function was greater than 0.8 was increasing; at the same time, the wavelength causing car body vibration was certain, in which the transversal vibration response of the car body was mainly caused by the irregularity of the wavelength in the range of 3~9 m, the vertical vibration response of the car body was caused by the irregularity of the wavelength of about 10 m and the wavelength of 2.8 m.

关键词

磁浮列车悬浮控制轨道不平顺相干分析车体振动加速度仿真

Keywords

maglev vehiclesuspension controltrack irregulatitycoherence calculationsvehicle vibrate accelerationsimulation

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