| 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 FB3; Yang GW(杨国伟)1,2
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| Corresponding Author | Sun, Z. X.(sunzhenxu@imech.ac.cn) |
| Source Publication | ACTA MECHANICA SINICA
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| 2021-05-11 | |
| Pages | 16 |
| ISSN | 0567-7718 |
| Abstract | 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. |
| Keyword | Urban maglev train Aerodynamic characteristics Cross validation Kriging model Genetic algorithm |
| DOI | 10.1007/s10409-021-01094-y |
| Indexed By | SCI ; EI ; CSCD |
| Language | 英语 |
| WOS ID | WOS:000649242300001 |
| WOS Keyword | MULTIOBJECTIVE OPTIMIZATION ; SPEED ; DESIGN ; MODEL ; HEAD |
| WOS Research Area | Engineering ; Mechanics |
| WOS Subject | Engineering, Mechanical ; Mechanics |
| Funding Project | 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] |
| Funding Organization | Advanced Rail Transportation Special Plan in National Key Research and Development Project ; Youth Innovation Promotion Association CAS |
| Classification | 二类 |
| Ranking | 1 |
| Contributor | Sun, Z. X. |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/86682 |
| Collection | 流固耦合系统力学重点实验室 |
| Affiliation | 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 |
| Recommended Citation 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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| Jp2021F223.pdf（2376KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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