1997 Fiscal Year Final Research Report Summary
Control of Tunnel Pressure Wave with Positive Pressure
| Project/Area Number |
07555166
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 展開研究 |
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| Research Field |
交通工学・国土計画
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| Research Institution | Yamanashi University |
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Principal Investigator |
YAMADA Shinji Yamanashi University Faculty of Engineering Professor, 工学部, 教授 (90020403)
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| Co-Investigator(Kenkyū-buntansha) |
KITAMURA Toshiya Yamanashi University Faculty of Engineering Assistant Professor, 工学部, 助手 (80224971)
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| Project Period (FY) |
1995 – 1997
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| Keywords | Pressure wave / Traveling wave / Shinkansen / Active control / Positive pressure |
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| Research Abstract |
When a high speed train enters into a long tunnel, a tunnel pressure wave occurs in front of the train. The pressure wave propagates at sound velocity to tunnel exit and radiates as an impulsive low frequency noise called as tunnel pressure wave from the tunnel exit. Based on a model experimental system, this study try an original way to attenuate positive pressure gradient of tunnel pressure wave with a negative pressure gradient generated by positive pressure and researches an effect of positive pressure wave on the tunnel pressure wave.
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