IMECH-IR  > 流固耦合系统力学重点实验室
The influence of pantograph aerodynamic characteristics caused by its shroud
Yao SB(姚拴宝); Guo DL(郭迪龙); Yang GW(杨国伟); Yao SB(姚拴宝)
Source PublicationProceedings of the 1st International Workshop on High-Speed and Intercity Railways, Vol.2
2012
Pages41-52
Conference Name1st International Workshop on High-Speed and Intercity Railways, IWHIR 2011
Conference DateJULY 19-22, 2011
Conference PlaceShenzhen, Hong Kong, China
AbstractThe current collection performance of pantograph plays an important role in safe operation of high-speed train. Research shows that pantograph aerodynamic characteristics have a great influence on the current collection of pantograph. It's an efficient method to install a suitable pantograph shroud to improve the pantograph aerodynamic performance. In this paper, for the real pantograph systems used on CRH380A and CRH380B, the influence of unsteady aerodynamic characteristics caused by different types of pantograph shrouds with a running speed of 350km/h has been studied with detached eddy simulation method. The results show that the wake field caused by pantograph has salient unsteady characteristics. Different designs of pantograph shroud largely affect the pantograph wake field and the lift, drag and side forces of the pantograph slide. Compared to pantograph without shroud, the pantograph with shroud owns a more complex wake field. Besides, the strength and shedding frequency of the detached eddy vary a lot. This phenomenon becomes more serious in the cross- wind condition. The drag of pantograph slide increases about 12.8% and the lift reduces about 13.5% thanks to the pantograph shroud in CRH380A, while the drag reduces about 7.4% and the lift increases about 100% due to the pantograph shroud used on CRH380B. In the end, the author gives the pantograph shroud aerodynamic optimization recommendations based on the research results.
KeywordPantograph Shroud Unsteady Aerodynamic Characteristics Des
DepartmentLMFS流固耦合与数值计算(LHO)
Funding OrganizationThe Hong Kong Polytechnic University,Hong Kong,China
ISBN978-3-642-27962-1
URL查看原文
Indexed ByEI
Language英语
Document Type会议论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/46799
Collection流固耦合系统力学重点实验室
Corresponding AuthorYao SB(姚拴宝)
Recommended Citation
GB/T 7714
Yao SB,Guo DL,Yang GW,et al. The influence of pantograph aerodynamic characteristics caused by its shroud[C]Proceedings of the 1st International Workshop on High-Speed and Intercity Railways, Vol.2,2012:41-52.
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