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高速磁浮车辆通过平面曲线时悬浮架和电磁铁的弹性变形分析
Elastic deformation analysis of the levitation bogie and the electromagnet of high-speed maglev vehicle running over the plane curve
- 机车电传动 2022年第4期 页码：1-8
- 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.中车株洲电力机车有限公司，湖南 株洲 412001
3.大功率交流传动电力机车系统集成国家重点实验室，湖南;株洲 412001
- 作者简介：
赵春发（1973—），男，博士，研究方向为轨道交通工程动力学；E-mail: cfzhao@swjtu.edu.cn
- 基金信息：国家重点研发计划项目(2016YFB1200601;2016YFB1200602-15);湖南省创新型省份建设专项
DOI：10.13890/j.issn.1000-128X.2022.04.103
中图分类号： U237;U266.4纸质出版日期：2022-07-10，
收稿日期：2022-01-21，
修回日期：2022-03-31，
- 稿件说明：
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和风, 冯洋, 佟来生, 等. 高速磁浮车辆通过平面曲线时悬浮架和电磁铁的弹性变形分析[J]. 机车电传动, 2022,(4):1-8.
HE Feng, FENG Yang, TONG Laisheng, et al. Elastic deformation analysis of the levitation bogie and the electromagnet of high-speed maglev vehicle running over the plane curve[J]. Electric drive for locomotives, 2022,(4):1-8.
和风, 冯洋, 佟来生, 等. 高速磁浮车辆通过平面曲线时悬浮架和电磁铁的弹性变形分析[J]. 机车电传动, 2022,(4):1-8. DOI： 10.13890/j.issn.1000-128X.2022.04.103.
HE Feng, FENG Yang, TONG Laisheng, et al. Elastic deformation analysis of the levitation bogie and the electromagnet of high-speed maglev vehicle running over the plane curve[J]. Electric drive for locomotives, 2022,(4):1-8. DOI： 10.13890/j.issn.1000-128X.2022.04.103.
摘要
为掌握高速磁浮车辆悬浮电磁铁和悬浮架的弹性变形特性，建立考虑悬浮电磁铁和悬浮架柔性的高速磁浮车辆刚柔耦合动力学模型，仿真分析了5种悬浮电磁铁抗弯刚度和3种平面曲线（曲线半径分别为650 m，1 000 m，4 000 m）条件下悬浮电磁铁和悬浮架的弹性变形。结果表明，悬浮电磁铁在半径1 000 m曲线上变形最大，当其抗弯刚度由现有设计值减小50%后，一位悬浮电磁铁的动态整体变形幅值由0.49 mm增大到0.82 mm，该值相对于10 mm的额定悬浮间隙而言较大，二位悬浮电磁铁的动态整体变形幅值由0.11 mm增至0.23 mm；增大悬浮电磁铁的抗弯刚度，其动态变形近似线性减小；在缓和曲线上悬浮架跟随轨道扭转而扭转，在缓和曲线中点处扭转角最大，头车一位悬浮架的扭转角总是小于二位悬浮架。整体而言，悬浮电磁铁的抗弯刚度对悬浮架扭转变形影响较小，对一位悬浮架托臂的弹性变形有一定影响，而对二位悬浮架托臂影响甚小。
Abstract
In order to grasp the elastic deformation characteristics of levitation electromagnet and levitation bogie of high-speed maglev vehicle
a rigid-flexible coupling dynamic model of high-speed maglev vehicle considering the flexibility of levitation electromagnet and levitation bogie was established. The elastic deformation of levitation electromagnet and levitation bogie under the five kinds of levitation electromagnet bending stiffness and three kinds of plane curves ( radius is 650 m
1 000 m and 4 000 m ) was simulated and analyzed. The results show that the deformation of the levitation electromagnet is the largest on the curve of radius at 1 000 m. When the bending stiffness of the levitation electromagnet decreases by 50% from the existing design value
the dynamic overall deformation amplitude of the first levitation electromagnet increases from 0.49 mm to 0.82 mm
which is larger than the rated suspension clearance of 10 mm
and the overall deformation amplitude of the second levitation electromagnet increases from 0.11 mm to 0.23 mm. With the increase of the bending stiffness of the levitation electromagnet
the dynamic deformation decreases approximately linearly. The levitation bogie twists along the track on the mitigation curve
and the torsion angle is the largest at the midpoint of the mitigation curve. The torsion angle of the first levitation bogie is always less than that of the second levitation bogie. Overall
the bending stiffness of the levitation electromagnet has little effect on the torsional deformation of the levitation bogie
and has a certain effect on the elastic deformation of the first levitation bogie bracket
and has little effect on the second levitation bogie bracket.
关键词
磁浮列车悬浮架电磁铁曲线通过刚柔耦合动力学弹性变形仿真
Keywords
maglev trainlevitation bogieelectromagnetcurve negotiationrigid-flexible coupled dynamicselastic deformationsimulation
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