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 of Maeda. The mechanism and the aspects of the train-tunnel interaction were also investigated discussed from the results of the parametric study.
Nose shape optimization of high-speed train for minimization of tunnel sonic boom
Optimierung der Frontgestaltung eines Hochgeschwindigkeitzuges zur Minimierung des Überschallknalls
2001
10 Seiten, 12 Bilder, 4 Tabellen, 19 Quellen
Article (Journal)
English
Optimum nose shape for reducing tunnel sonic boom
British Library Conference Proceedings | 1996
|Effective Nose Shape for Reducing Tunnel Sonic Boom
British Library Online Contents | 1997
|Effective Nose Shape for Reducing Tunnel Sonic Boom
Online Contents | 1997
|Effective Nose Shape for Reducing Tunnel Sonic Boom
IuD Bahn | 1997
|Sonic-boom minimization with nose-bluntness relaxation
NTRS | 1979
|