Nose shape optimization of high-speed train for minimization of tunnel sonic boom

被引:56
作者
Kwon, HB [1 ]
Jang, KH
Kim, YS
Yee, KJ
Lee, DH
机构
[1] Seoul Natl Univ, Dept Aerosp Engn, Seoul 151742, South Korea
[2] Seoul Natl Univ, Sch Mech & Aerosp Engn, Seoul 151742, South Korea
[3] Seoul Natl Univ, Inst Adv Machinery & Design, Seoul 151742, South Korea
来源
JSME INTERNATIONAL JOURNAL SERIES C-MECHANICAL SYSTEMS MACHINE ELEMENTS AND MANUFACTURING | 2001年 / 44卷 / 03期
关键词
high-speed trains; micro-pressure wave; sonic boom; nose shape optimization; response surface methodology; shape function; patched grid method;
D O I
10.1299/jsmec.44.890
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The tunnel booming noise generated during the train-tunnel interaction has been one of the most serious constraints in the development of the high-speed trains. It is well known that the nose shape of the train has the significant influence on the intensity of the booming noise. In this study, the nose shape has been optimized by using the response surface methodology and the axi-symmetric compressible Euler equations. The parametric studies are also performed with respect to the slenderness ratio, the blockage ratio and the train speed to investigate their sensitivities to the optimization results. The results show that it is possible to define more general design space by introducing the Hicks-Henne shape functions, resulting in the more effective nose shape than that of Maeda. The mechanism and the aspects of the train-tunnel interaction were also investigated discussed from the results of the Parametric study.
引用
收藏
页码:890 / 899
页数:10
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