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Civil-Comp Proceedings
ISSN 1759-3433
CCP: 110
PROCEEDINGS OF THE THIRD INTERNATIONAL CONFERENCE ON RAILWAY TECHNOLOGY: RESEARCH, DEVELOPMENT AND MAINTENANCE
Edited by: J. Pombo
Paper 220

A Study of the Optimization Design Method for a High Speed Train

G.L. Zhao1, Z.X. Sun1, S.B. Yao2, D.L. Guo1 and G.W. Yang1

1LMFS, Institute of Mechanics, Chinese Academy of Sciences, Beijing, China
2CSR Qingdao Sifang Locomotive & Rolling Stock Co., Ltd., Qingdao, Shandong, China

Full Bibliographic Reference for this paper
G.L. Zhao, Z.X. Sun, S.B. Yao, D.L. Guo, G.W. Yang, "A Study of the Optimization Design Method for a High Speed Train", in J. Pombo, (Editor), "Proceedings of the Third International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Stirlingshire, UK, Paper 220, 2016. doi:10.4203/ccp.110.220
Keywords: high speed train, optimization method, GA-GRNN, kriging model, genetic algorithms.

Summary
In this paper, different optimization methods are proposed which are the combination of different surrogate models and algorithms. The simplified CRH380A high speed train with three carriages is chosen as the model, and the optimization objectives include the aerodynamic drag of the whole train and the aerodynamic lift of the trailing car. Through comparing differences of the aerodynamic drag and lift between the optimized high speed train and the prototype train, the advantages and disadvantages of different optimization methods are assessed, and the simple, efficient, convenient and accurate optimization method is determined.

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