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A State-of-the-Art Review of Curve Squeal Noise: Phenomena, Mechanisms, Modelling and Mitigation Read chapter Read first chapter

2018 | OriginalPaper | Chapter

Development of New Noise Reduction Equipment for the Slits on Tunnel Hoods

Authors : Masaaki Matsunuma, Nobuyuki Kimura

Published in: Noise and Vibration Mitigation for Rail Transportation Systems

Publisher: Springer International Publishing

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Abstract

High speed-trains entering long tunnels sometimes cause an explosive sound at the exit, caused by a micro-pressure wave. Tunnel hoods have been installed to mitigate this phenomenon. In general, Shinkansen tunnel hoods have slit windows in their side wall. On one hand these side slit windows are effective for micro-pressure waves; but on the other hand, they cause traveling noise from trains to escape from tunnel hoods. To make matters worse, the faster trains travel, the louder traveling noise becomes. In this study, new noise reduction facilities for slit windows of tunnel hoods have been developed. The scale model experiments in this study proved the effectiveness in noise reduction.

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previous chapter Aerodynamic Noise Reduction of Brake Disc for High-Speed Trains
next chapter Reduction of Aerodynamic Noise Emitted from Pantograph by Appropriate Aerodynamic Interference Around Pantograph Head Support
Literature
1.
Kato, I., Shinohara, Y.: Wayside environmental measures for Shinkansen speed increases. JR East Tech. Rev. 26, 73–76 (2013) (in Japanese)
2.
Institute of Noise Control Engineering in Japan: Hand Book of Noise Control Engineering (2001) (in Japanese)
3.
Bruel, P.V.: Sound Insulation and Room Acoustics, pp. 159–165. Chapman & Hall, London (1951)
Metadata
Title
Development of New Noise Reduction Equipment for the Slits on Tunnel Hoods
Authors
Masaaki Matsunuma
Nobuyuki Kimura
Copyright Year
2018
Book
Noise and Vibration Mitigation for Rail Transportation Systems

Print ISBN: 978-3-319-73410-1

Electronic ISBN: 978-3-319-73411-8

Copyright Year: 2018

DOI
https://doi.org/10.1007/978-3-319-73411-8_30

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