IMECH-IR  > 流固耦合系统力学重点实验室
Shape Optimization of High-Speed Train with the Speed of 500kph
Cui K(崔凯); Wang XP; Hu SC; Gao TY; Yang GW(杨国伟)
Source PublicationProceedings of the 1st International Workshop on High-Speed and Intercity Railways ; Lecture Notes in Electrical Engineering, 2012, Volume 148, 187-197, DOI: 10.1007/978-3-642-27963-8_19
2012
Conference NameThe 1st International Workshop on High-Speed and Intercity Railways
Conference Date2012
Conference PlaceBeijing
Abstract

With the train speed becoming faster and faster, the aerodynamic drag turns to be one of the essential factor that restricts the train speed ascent. However, no public literature, abroad or abroad, has dealt with the flow field and aerodynamic performance of the train with the speed reaching 500km per hour. In this paper, an optimization study is carried out to reduce the aerodynamic drag of the high speed train (HST). First of all, a grid-based method is presented to parameterize the head shape of the HST, key variables are obtained by sensitivity analysis. Next, a response surface is constructed based on computational fluid dynamics (CFD) analysis to approximate the relationship of the drag and design variables at 500KPH. Finally, the genetic algorithm is used to optimize the head shape of the HST.

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With the train speed becoming faster and faster, the aerodynamic drag turns to be one of the essential factor that restricts the train speed ascent. However, no public literature, abroad or abroad, has dealt with the flow field and aerodynamic performance of the train with the speed reaching 500km per hour. In this paper, an optimization study is carried out to reduce the aerodynamic drag of the high speed train (HST). First of all, a grid-based method is presented to parameterize the head shape of the HST, key variables are obtained by sensitivity analysis. Next, a response surface is constructed based on computational fluid dynamics (CFD) analysis to approximate the relationship of the drag and design variables at 500KPH. Finally, the genetic algorithm is used to optimize the head shape of the HST.
KeywordHigh Speed Train Head Shape Optimization Rbf Genetic Algorithm Computational Fluid Dynamics
DepartmentLHD气动布局优化与计算方法
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Indexed ByEI
Language英语
Document Type会议论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/45665
Collection流固耦合系统力学重点实验室
Recommended Citation
GB/T 7714
Cui K,Wang XP,Hu SC,et al. Shape Optimization of High-Speed Train with the Speed of 500kph[C]Proceedings of the 1st International Workshop on High-Speed and Intercity Railways ; Lecture Notes in Electrical Engineering, 2012, Volume 148, 187-197, DOI: 10.1007/978-3-642-27963-8_19,2012.
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