Abstract
A high-speed train entering a tunnel generates a compression wave ahead of it. The wave is propagated through the tunnel and causes an impulsive noise when it arrives at the tunnel exit. The magnitude of impulsive noise from the tunnel exit is proportional to the maximum time rate of pressure change of the compression wave reaching the exit, according to the aeroacoustic theory. From this point of view, it is important to clarify the formation mechanism and the waveform of the compression wave generated at the entrance of the tunnel. In this paper, the entry compression waves are measured in actual high-speed train/tunnel systems and the results are compared with the theoretical values. Then the formation mechanism of the entry compression waves is clarified.
| Original language | English |
|---|---|
| Pages (from-to) | 3720-3727 |
| Number of pages | 8 |
| Journal | Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B |
| Volume | 61 |
| Issue number | 590 |
| DOIs | |
| Publication status | Published - Jan 1 1995 |
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All Science Journal Classification (ASJC) codes
- Condensed Matter Physics
- Mechanical Engineering
Cite this
Entry Compression Wave Generated by a High-Speed Train Entering a Tunnel. / Mashimo, Shinya; Nakatsu, Eiji; Aoki, Toshiyuki; Matsuo, Kazuyasu.
In: Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B, Vol. 61, No. 590, 01.01.1995, p. 3720-3727.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Entry Compression Wave Generated by a High-Speed Train Entering a Tunnel.
AU - Mashimo, Shinya
AU - Nakatsu, Eiji
AU - Aoki, Toshiyuki
AU - Matsuo, Kazuyasu
PY - 1995/1/1
Y1 - 1995/1/1
N2 - A high-speed train entering a tunnel generates a compression wave ahead of it. The wave is propagated through the tunnel and causes an impulsive noise when it arrives at the tunnel exit. The magnitude of impulsive noise from the tunnel exit is proportional to the maximum time rate of pressure change of the compression wave reaching the exit, according to the aeroacoustic theory. From this point of view, it is important to clarify the formation mechanism and the waveform of the compression wave generated at the entrance of the tunnel. In this paper, the entry compression waves are measured in actual high-speed train/tunnel systems and the results are compared with the theoretical values. Then the formation mechanism of the entry compression waves is clarified.
AB - A high-speed train entering a tunnel generates a compression wave ahead of it. The wave is propagated through the tunnel and causes an impulsive noise when it arrives at the tunnel exit. The magnitude of impulsive noise from the tunnel exit is proportional to the maximum time rate of pressure change of the compression wave reaching the exit, according to the aeroacoustic theory. From this point of view, it is important to clarify the formation mechanism and the waveform of the compression wave generated at the entrance of the tunnel. In this paper, the entry compression waves are measured in actual high-speed train/tunnel systems and the results are compared with the theoretical values. Then the formation mechanism of the entry compression waves is clarified.
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UR - http://www.scopus.com/inward/citedby.url?scp=0029391003&partnerID=8YFLogxK
U2 - 10.1299/kikaib.61.3720
DO - 10.1299/kikaib.61.3720
M3 - Article
AN - SCOPUS:0029391003
VL - 61
SP - 3720
EP - 3727
JO - Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
JF - Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
SN - 0387-5016
IS - 590
ER -