Measurement and analysis of Pressure fluctuation by high speed train passing through tunnels in conventional line

기존선 터널 주행시의 고속열차 차체가 받는 압력변동 계측 및 분석

Pressure waves are generated when high speed train runs through the tunnels. These pressure waves not only affect passenger's health, but also can cause fatigue failures on the vehicle structure. The current high speed train should run on the conventional lines. In this study, pressure fluctuations by the high speed trains such as G7 Korea High Speed Train and Korea Train eXpress are measured in the cabin and the carbody surface when they pass through the tunnels. The measured results are analyzed and the related parameters are investigated.