Aerodynamic shape optimization of an urban maglev train

doi:10.1007/s10409-021-01094-y

CORC > 力学研究所 > 中国科学院力学研究所 > 流固耦合系统力学重点实验室(2012-)

	Aerodynamic shape optimization of an urban maglev train
	Sun, Z. X.3; Wang, M. Y.2,3; Wei, L. Y.2,3; Kong, F. B.1; Yang, G. W.2,3
刊名	ACTA MECHANICA SINICA
	2021-05-11
页码	16
关键词	Urban maglev train Aerodynamic characteristics Cross validation Kriging model Genetic algorithm
ISSN号	0567-7718
DOI	10.1007/s10409-021-01094-y
通讯作者	Sun, Z. X.(sunzhenxu@imech.ac.cn)
英文摘要	With rapid development of urban rail transit, maglev trains, benefiting from its comfortable, energy-saving and environmentally friendly merits, have gradually entered people's horizons. In this paper, aiming at improving the aerodynamic performance of an urban maglev train, the aerodynamic optimization design has been performed. An improved two-point infill criterion has been adopted to construct the cross-validated Kriging model. Meanwhile, the multi-objective genetic algorithm and complex three-dimensional geometric parametrization method have been used, to optimize the streamlined head of the train. Several optimal shapes have been obtained. Results reveal that the optimization strategy used in this paper is sufficiently accurate and time-efficient for the optimization of the urban maglev train, and can be applied in practical engineering. Compared to the prototype of the train, optimal shape benefits from higher lift of the leading car and smaller drag of the whole train. Sensitivity analysis reveals that the length and height of the streamlined head have a great influence on the aerodynamic performance of the train, and strong nonlinear relationships exist between these design variables and aerodynamic performance. The conclusions drawn in this study offer the chance to derive critical reference values for the optimization of the aerodynamic characteristics of urban maglev trains.
资助项目	Advanced Rail Transportation Special Plan in National Key Research and Development Project[2016YFB1200601-B13] ; Advanced Rail Transportation Special Plan in National Key Research and Development Project[2016YFB1200602-09] ; Youth Innovation Promotion Association CAS[2019020]
WOS关键词	MULTIOBJECTIVE OPTIMIZATION ; SPEED ; DESIGN ; MODEL ; HEAD
WOS研究方向	Engineering ; Mechanics
语种	英语
WOS记录号	WOS:000649242300001
资助机构	Advanced Rail Transportation Special Plan in National Key Research and Development Project ; Youth Innovation Promotion Association CAS
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/86681]
专题	力学研究所_流固耦合系统力学重点实验室(2012-)
通讯作者	Sun, Z. X.
作者单位	1.CRRC Tangshan Co Ltd, Tangshan 063000, Hebei, Peoples R China 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 101408, Peoples R China 3.Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Sun, Z. X.,Wang, M. Y.,Wei, L. Y.,et al. Aerodynamic shape optimization of an urban maglev train[J]. ACTA MECHANICA SINICA,2021:16.
APA	Sun, Z. X.,Wang, M. Y.,Wei, L. Y.,Kong, F. B.,&Yang, G. W..(2021).Aerodynamic shape optimization of an urban maglev train.ACTA MECHANICA SINICA,16.
MLA	Sun, Z. X.,et al."Aerodynamic shape optimization of an urban maglev train".ACTA MECHANICA SINICA (2021):16.