Study on Aerodynamic Factors of Overhead Catenary in High-speed Railway Tunnel
In order to explore the influencing factors of catenary aerodynamics in high-speed railway tunnels, based on the finite volume method, the aerodynamics models of train-set passing through different tunnels were established, and the three-dimensional outflow field of catenary air were numerically si...
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| Format: | Article |
| Language: | zho |
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Harbin University of Science and Technology Publications
2023-06-01
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| Series: | Journal of Harbin University of Science and Technology |
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| Online Access: | https://hlgxb.hrbust.edu.cn/#/digest?ArticleID=2226 |
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| author | PENG Longhu LI Xiangdong LI Wenbin WANG Xiaobing LIU Chunhao |
| author_facet | PENG Longhu LI Xiangdong LI Wenbin WANG Xiaobing LIU Chunhao |
| author_sort | PENG Longhu |
| collection | DOAJ |
| description | In order to explore the influencing factors of catenary aerodynamics in high-speed railway tunnels, based on the finite volume method, the aerodynamics models of train-set passing through different tunnels were established, and the three-dimensional outflow field of catenary air were numerically simulated by using fluid dynamics software. The extreme values of wind load under different working conditions were obtained from the simulation results, and the basic wind migration of catenary clues was analyzed and calculated. The results show that the main factors affecting the wind load of the catenary in the tunnel are tunnel clearance area and vehicle speed. When the train-set passes and crosses in the tunnel, the maximum wind offset value of the catenary clues decreases with the increase of the tunnel clearance area, and increases in a nonlinear way with the increase of the speed. In order to ensure safety, the wind deviation of catenary can be reduced by reducing the span length of catenary or increasing the horizontal tension of catenary. |
| format | Article |
| id | doaj-art-9f71239745b1492faf4d78aa88b871bd |
| institution | OA Journals |
| issn | 1007-2683 |
| language | zho |
| publishDate | 2023-06-01 |
| publisher | Harbin University of Science and Technology Publications |
| record_format | Article |
| series | Journal of Harbin University of Science and Technology |
| spelling | doaj-art-9f71239745b1492faf4d78aa88b871bd2025-08-20T02:39:03ZzhoHarbin University of Science and Technology PublicationsJournal of Harbin University of Science and Technology1007-26832023-06-01280314915810.15938/j.jhust.2023.03.019Study on Aerodynamic Factors of Overhead Catenary in High-speed Railway TunnelPENG Longhu0LI Xiangdong1LI Wenbin2WANG Xiaobing3LIU Chunhao4China Railway Construction Electrification Bureau Group South Engineering Co. , LTD, Wuhan 430070, ChinaBeijing IMAP Technology Co. , LTD, Beijing 100080, ChinaCollegeofMechanicalandElectricalEngineering,QingdaoUniversity,Qingdao266071,ChinaBeijing IMAP Technology Co. , LTD, Beijing 100080, ChinaBeijing IMAP Technology Co. , LTD, Beijing 100080, China In order to explore the influencing factors of catenary aerodynamics in high-speed railway tunnels, based on the finite volume method, the aerodynamics models of train-set passing through different tunnels were established, and the three-dimensional outflow field of catenary air were numerically simulated by using fluid dynamics software. The extreme values of wind load under different working conditions were obtained from the simulation results, and the basic wind migration of catenary clues was analyzed and calculated. The results show that the main factors affecting the wind load of the catenary in the tunnel are tunnel clearance area and vehicle speed. When the train-set passes and crosses in the tunnel, the maximum wind offset value of the catenary clues decreases with the increase of the tunnel clearance area, and increases in a nonlinear way with the increase of the speed. In order to ensure safety, the wind deviation of catenary can be reduced by reducing the span length of catenary or increasing the horizontal tension of catenary.https://hlgxb.hrbust.edu.cn/#/digest?ArticleID=2226tunnelclearance areanumerical simulationwind loadwind drift |
| spellingShingle | PENG Longhu LI Xiangdong LI Wenbin WANG Xiaobing LIU Chunhao Study on Aerodynamic Factors of Overhead Catenary in High-speed Railway Tunnel Journal of Harbin University of Science and Technology tunnel clearance area numerical simulation wind load wind drift |
| title | Study on Aerodynamic Factors of Overhead Catenary in High-speed Railway Tunnel |
| title_full | Study on Aerodynamic Factors of Overhead Catenary in High-speed Railway Tunnel |
| title_fullStr | Study on Aerodynamic Factors of Overhead Catenary in High-speed Railway Tunnel |
| title_full_unstemmed | Study on Aerodynamic Factors of Overhead Catenary in High-speed Railway Tunnel |
| title_short | Study on Aerodynamic Factors of Overhead Catenary in High-speed Railway Tunnel |
| title_sort | study on aerodynamic factors of overhead catenary in high speed railway tunnel |
| topic | tunnel clearance area numerical simulation wind load wind drift |
| url | https://hlgxb.hrbust.edu.cn/#/digest?ArticleID=2226 |
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