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Titolo:
Nose shape optimization of high-speed train for minimization of tunnel sonic boom
Autore:
Kwon, HB; Jang, KH; Kim, YS; Yee, KJ; Lee, DH;
Indirizzi:
Seoul Natl Univ, Dept Aerosp Engn, Seoul 151742, South Korea Seoul Natl Univ Seoul South Korea 151742 Engn, Seoul 151742, South Korea Seoul Natl Univ, Sch Mech & Aerosp Engn, Seoul 151742, South Korea Seoul Natl Univ Seoul South Korea 151742 Engn, Seoul 151742, South Korea Seoul Natl Univ, Inst Adv Machinery & Design, Seoul 151742, South Korea Seoul Natl Univ Seoul South Korea 151742 sign, Seoul 151742, South Korea
Titolo Testata:
JSME INTERNATIONAL JOURNAL SERIES C-MECHANICAL SYSTEMS MACHINE ELEMENTS AND MANUFACTURING
fascicolo: 3, volume: 44, anno: 2001,
pagine: 890 - 899
SICI:
1344-7653(200109)44:3<890:NSOOHT>2.0.ZU;2-L
Fonte:
ISI
Lingua:
ENG
Keywords:
high-speed trains; micro-pressure wave; sonic boom; nose shape optimization; response surface methodology; shape function; patched grid method;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
Citazioni:
19
Recensione:
Indirizzi per estratti:
Indirizzo: Kwon, HB Seoul Natl Univ, Dept Aerosp Engn, Seoul 151742, South Korea Seoul Natl Univ Seoul South Korea 151742 ul 151742, South Korea
Citazione:
H.B. Kwon et al., "Nose shape optimization of high-speed train for minimization of tunnel sonic boom", JSME C, 44(3), 2001, pp. 890-899

Abstract

The tunnel booming noise generated during the train-tunnel interaction hasbeen 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 andthe axi-symmetric compressible Euler equations. The parametric studies arealso 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 moreeffective 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.

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Documento generato il 04/12/20 alle ore 01:13:36