| Effects of Running Speed on Coupling between Pantograph of High-Speed Train and Tunnel Based on Aerodynamics and Multi-Body Dynamics Coupling | |
Ji ZL(纪占玲); Guo Y(郭易); Guo DL(郭迪龙) ; Yang GW(杨国伟); Liu YB(刘玉标)
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| Corresponding Author | Guo, Yi([email protected]) |
| Source Publication | APPLIED SCIENCES-BASEL
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| 2021-11-01 | |
| Volume | 11Issue:21Pages:16 |
| Abstract | Featured Application:& nbsp;A coupling method between aerodynamics and multi-body dynamics is proposed. The interaction between the pantograph and its surrounding air is achieved by using the method. Its applicability is wide, which is suitable for pantograph-cantenery, car body, windshield of a high-speed train, as well as coupling analysis between aerodynamics and multi-body dynamics, aerodynamics and structural finite element in other fields.
(1) Background: The ratio of railway tunnel to line is larger, which produces tunnel entrance and exit effect, aerodynamic resistance, and sudden pressure changes. When the train passes through the tunnels at high-speed, the interaction between the pantograph on it and its surrounding air intensifies and the coupling effects between the pantograph and tunnel become more significant; (2) Methods: A coupling method between aerodynamics and multi-body dynamics is proposed based on hybrid meshing and grid motion. The layered grid motion method is combined with the viscous mesh deformation method with swift, effective data exchange. The significant coupling effects between the pantograph and tunnel are revealed; (3) Results: The influence laws and evolution mechanism of running speed as it affects important service characteristics and behaviors of the pantograph are accurately quantified. Noteworthy factors include the temporal characteristics of panhead aerodynamic lift, the contact force between the pantograph and catenary, vertical displacement and acceleration of the contact strip, the phase diagram of the contact strip, and various frequency-domain characteristics. The action mechanism of running speed on the coupling effect between the pantograph and tunnel is comprehensively and accurately revealed by the proposed method; (4) Conclusions: The larger service characteristics amplitudes of the high-speed pantograph appear at low frequencies and are not multiple frequencies of the basic frequency. By comparisons, the coupling calculation results are closer to the test results than the non-coupling results regardless of the maximum, minimum, or mean. |
| Keyword | coupling effect between pantograph and tunnel high-speed pantograph high-speed train running speed coupled aerodynamics and multi-body dynamics passing through a tunnel |
| DOI | 10.3390/app112110008 |
| Indexed By | SCI |
| Language | 英语 |
| WOS ID | WOS:000718625900001 |
| WOS Keyword | CATENARIES |
| WOS Research Area | Chemistry ; Engineering ; Materials Science ; Physics |
| WOS Subject | Chemistry, Multidisciplinary ; Engineering, Multidisciplinary ; Materials Science, Multidisciplinary ; Physics, Applied |
| Funding Project | National Key Research & Development Projects[2017YFB0202801] ; National Natural Science Foundation of China[52172336] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB22020101] ; Research Project of Chinese Academy of Sciences[XXH13506-204] |
| Funding Organization | National Key Research & Development Projects ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Research Project of Chinese Academy of Sciences |
| Classification | 二类 |
| Ranking | 1 |
| Contributor | Guo, Yi |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/88015 |
| Collection | 流固耦合系统力学重点实验室 |
| Affiliation | Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China |
| Recommended Citation GB/T 7714 | Ji ZL,Guo Y,Guo DL,et al. Effects of Running Speed on Coupling between Pantograph of High-Speed Train and Tunnel Based on Aerodynamics and Multi-Body Dynamics Coupling[J]. APPLIED SCIENCES-BASEL,2021,11,21,:16.Rp_Au:Guo, Yi |
| APA | 纪占玲,郭易,郭迪龙,杨国伟,&刘玉标.(2021).Effects of Running Speed on Coupling between Pantograph of High-Speed Train and Tunnel Based on Aerodynamics and Multi-Body Dynamics Coupling.APPLIED SCIENCES-BASEL,11(21),16. |
| MLA | 纪占玲,et al."Effects of Running Speed on Coupling between Pantograph of High-Speed Train and Tunnel Based on Aerodynamics and Multi-Body Dynamics Coupling".APPLIED SCIENCES-BASEL 11.21(2021):16. |
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