Aerodynamic shape optimization of an urban maglev train

doi:10.1007/s10409-021-01094-y

IMECH-IR > 流固耦合系统力学重点实验室

	Aerodynamic shape optimization of an urban maglev train
	Sun ZX(孙振旭)1 ; Wang MY(王梦莹)1,2; Wei LY(魏涟漪)1,2; Kong FB 3; Yang GW(杨国伟)1,2
通讯作者	Sun, Z. X.(sunzhenxu@imech.ac.cn)
发表期刊	ACTA MECHANICA SINICA
	2021-05-11
页码	16
ISSN	0567-7718
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.
关键词	Urban maglev train Aerodynamic characteristics Cross validation Kriging model Genetic algorithm
DOI	10.1007/s10409-021-01094-y
收录类别	SCI ; EI ; CSCD
语种	英语
WOS记录号	WOS:000649242300001
关键词[WOS]	MULTIOBJECTIVE OPTIMIZATION ; SPEED ; DESIGN ; MODEL ; HEAD
WOS研究方向	Engineering ; Mechanics
WOS类目	Engineering, Mechanical ; Mechanics
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]
项目资助者	Advanced Rail Transportation Special Plan in National Key Research and Development Project ; Youth Innovation Promotion Association CAS
论文分区	二类
力学所作者排名	1
RpAuthor	Sun, Z. X.
引用统计	被引频次：8[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/86682
专题	流固耦合系统力学重点实验室
作者单位	1.Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China; 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 101408, Peoples R China; 3.CRRC Tangshan Co Ltd, Tangshan 063000, Hebei, Peoples R China
推荐引用方式 GB/T 7714	Sun ZX,Wang MY,Wei LY,et al. Aerodynamic shape optimization of an urban maglev train[J]. ACTA MECHANICA SINICA,2021:16.
APA	孙振旭,王梦莹,魏涟漪,Kong FB,&杨国伟.(2021).Aerodynamic shape optimization of an urban maglev train.ACTA MECHANICA SINICA,16.
MLA	孙振旭,et al."Aerodynamic shape optimization of an urban maglev train".ACTA MECHANICA SINICA (2021):16.

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