Entry Compression Wave Generated by a High-Speed Train Entering a Tunnel.

Shinya Mashimo; Eiji Nakatsu; Toshiyuki Aoki; Kazuyasu Matsuo

doi:10.1299/kikaib.61.3720

Entry Compression Wave Generated by a High-Speed Train Entering a Tunnel.

Shinya Mashimo, Eiji Nakatsu, Toshiyuki Aoki, Kazuyasu Matsuo

Thermo Fluid Dynamics Division

Research output: Contribution to journal › Article › peer-review

8 Citations (Scopus)

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	https://doi.org/10.1299/kikaib.61.3720
Publication status	Published - 1995

All Science Journal Classification (ASJC) codes

Condensed Matter Physics
Mechanical Engineering

Access to Document

10.1299/kikaib.61.3720

Fingerprint Dive into the research topics of 'Entry Compression Wave Generated by a High-Speed Train Entering a Tunnel.'. Together they form a unique fingerprint.

Cite this

@article{2d53485b1fde4fbf859c6c710a9ec31e,

title = "Entry Compression Wave Generated by a High-Speed Train Entering a Tunnel.",

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.",

author = "Shinya Mashimo and Eiji Nakatsu and Toshiyuki Aoki and Kazuyasu Matsuo",

year = "1995",

doi = "10.1299/kikaib.61.3720",

language = "English",

volume = "61",

pages = "3720--3727",

journal = "Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B",

issn = "0387-5016",

publisher = "The Japan Society of Mechanical Engineers",

number = "590",

}

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

Y1 - 1995

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.

UR - http://www.scopus.com/inward/record.url?scp=0029391003&partnerID=8YFLogxK

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 -