Dynamic stability of an electromagnetic suspension maglev vehicle under steady aerodynamic load
文献类型:期刊论文
作者 | Wu H(吴晗)3,4; Zeng XH(曾晓辉)3,4; Gao, Ding-Gang2; Lai, Jiang1 |
刊名 | APPLIED MATHEMATICAL MODELLING |
出版日期 | 2021-09-01 |
卷号 | 97页码:483-500 |
ISSN号 | 0307-904X |
关键词 | EMS maglev vehicle Dynamic stability Aerodynamic load Critical speed |
DOI | 10.1016/j.apm.2021.04.008 |
英文摘要 | In this study, the suspension stability of a maglev vehicle is investigated under steady aerodynamic load. The dynamics of the maglev vehicle in the vertical direction are modelled by considering aerodynamic lift and pitching moment, and this model is adopted to investigate how the aerodynamic load influences the suspension stability by analysing the critical speed by means of eigenvalue analysis and direct integration. Doing so reveals three modes of suspension failure: (i) an upward aerodynamic load or pitching moment can give rise to a dynamic instability, (ii) a downward aerodynamic load can give rise to a static instability and (iii) the electromagnet becomes locked in the guide-way because the vertical aerodynamic force borne by the electromagnet exceeds the vehicle weight borne by it, and the electromagnetic force cannot adjust the suspension gap. In essence, failure modes (i) and (ii) correspond to motion stability when the maglev vehicle system is perturbed by a small amount, whereas failure mode (iii) is similar to the electromagnet holding the track in the event of control failure, albeit by a different mechanism. Each suspension failure mode has its own critical speed, and how that speed depends on the aerodynamic coefficients and feedback control gains is determined.& nbsp; (c) 2021 Elsevier Inc. All rights reserved. |
分类号 | 一类 |
WOS关键词 | TRAIN |
资助项目 | National Key R&D Program of China[2016YFB1200602] ; National Natural Science Foundation of China[51805522] ; National Natural Science Foundation of China[11672306] ; National Natural Science Foundation of China[51490673] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB22020100] |
WOS研究方向 | Engineering ; Mathematics ; Mechanics |
语种 | 英语 |
WOS记录号 | WOS:000661930800002 |
资助机构 | National Key R&D Program of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences |
其他责任者 | Zeng, Xiao-Hui |
源URL | [http://dspace.imech.ac.cn/handle/311007/86943] |
专题 | 力学研究所_流固耦合系统力学重点实验室(2012-) |
作者单位 | 1.Nucl Power Inst China, Chengdu, Peoples R China 2.Tongji Univ, Maglev Transportat Engn R&D Ctr, Shanghai, Peoples R China; 3.Univ Chinese Acad Sci, Sch Engn Sci, Beijing, Peoples R China; 4.Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing, Peoples R China; |
推荐引用方式 GB/T 7714 | Wu H,Zeng XH,Gao, Ding-Gang,et al. Dynamic stability of an electromagnetic suspension maglev vehicle under steady aerodynamic load[J]. APPLIED MATHEMATICAL MODELLING,2021,97:483-500. |
APA | Wu H,Zeng XH,Gao, Ding-Gang,&Lai, Jiang.(2021).Dynamic stability of an electromagnetic suspension maglev vehicle under steady aerodynamic load.APPLIED MATHEMATICAL MODELLING,97,483-500. |
MLA | Wu H,et al."Dynamic stability of an electromagnetic suspension maglev vehicle under steady aerodynamic load".APPLIED MATHEMATICAL MODELLING 97(2021):483-500. |
入库方式: OAI收割
来源:力学研究所
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