高速列车流线型头部多目标气动优化设计

被引:13
作者
刘加利 [1 ]
李明高 [2 ]
张继业 [1 ]
张卫华 [1 ]
李明 [2 ]
机构
[1] 西南交通大学牵引动力国家重点实验室
[2] 唐山轨道客车有限责任公司产品技术研究中心
关键词
多目标; 气动优化; 减阻降噪; 遗传算法; 高速列车; 气动阻力; 偶极子声源;
D O I
暂无
中图分类号
TP18 [人工智能理论]; U270.2 [车辆设计、计算];
学科分类号
081104 ; 0812 ; 0835 ; 1405 ; 080204 ; 082304 ;
摘要
为改善高速列车的气动性能,建立高速列车流线型头型多目标气动优化设计流程,以气动阻力和偶极子噪声源为优化目标,对高速列车流线型头型进行减阻降噪的多目标优化设计.建立高速列车流线型头型的三维参数化模型,并提取出5个优化设计变量,实现高速列车流线型头型的自动变形.采用批处理命令和脚本文件实现高速列车空气动力学计算网格的自动划分及高速列车绕流流场的自动计算.利用多目标遗传算法NSGA-II对优化设计变量进行更新,实现高速列车流线型头型的多目标自动寻优设计.通过研究优化目标与优化变量之间的相关性,得到影响优化目标的关键优化设计变量,进一步分析得到关键优化设计变量与优化目标之间的非线性关系.通过与原始流线型列车气动性能对比发现,优化后的流线型头型最大可使高速列车的气动阻力降低4.54%,使高速列车的偶极子噪声源减少4.95dB.
引用
收藏
页码:689 / 698
页数:10
相关论文
共 8 条
[1]  
Three-dimensional aerodynamic optimization design of high-speed train nose based on GA-GRNN[J]. YAO ShuanBao ,GUO DiLong & YANG GuoWei Key Laboratory for Hydrodynamics and Ocean Engineering Institute of Mechanics,Chinese Academy of Sciences,Beijing 100190,China.Science China(Technological Sciences). 2012(11)
[2]  
Optimization of the head shape of the CRH3 high speed train[J]. SUN ZhenXu1, SONG JingJing1 & AN YiRan1 College of Engineering, State Key Laboratory for Turbulence and Complex Systems, Peking University, Beijing 100871, China.Science China(Technological Sciences). 2010(12)
[3]  
Shape optimization of high-speed trains for improved aerodynamic performance[J] . Krajnovic,S.Proceedings of the Institution of Mechanical Engi . 2009 (F5)
[4]   Approximate optimization of high-speed train nose shape for reducing micropressure wave [J].
Lee, Jongsoo ;
Kim, Junghui .
STRUCTURAL AND MULTIDISCIPLINARY OPTIMIZATION, 2008, 35 (01) :79-87
[5]  
Aerodynamics of high-speed railway train[J] . Raghu S Raghunathan,H.-D Kim,T Setoguchi.Progress in Aerospace Sciences . 2002 (6)
[6]  
AERODYNAMICS OF HIGH-SPEED TRAINS[J] . Joseph A Schetz.Annual Review of Fluid Mechanics . 2001
[7]  
Multi-objective Genetic Algorithms: Problem Difficulties and Construction of Test Problems[J] . Kalyanmoy Deb.Evolutionary Computation . 1999 (3)
[8]  
An introduction to Computational Fluid Dynamics: The Finite Volume Method .2 H.K. Versteeg,W. Malalasekera. . 2007