Ride comfort of High Speed Train due to Aerodynamic Force inside Tunnel

터넬 주행 중 공력기인 고속전철의 승차감

  • 신범식 (성균관대학교, 기계공학부) ;
  • 최연선 (성균관대학교, 기계공학부)
  • Published : 2010.06.10

Abstract

Ride comfort is an important factor for the development of a high-speed train. The aerodynamic force to a high speed train inside tunnels increases the car-body vibration and makes its ride comfort worse. In this study, the aerodynamic force is estimated through a CFD analysis using ADINA, and its car-body vibration and ride comfort are calculated for the aerodynamic force which acts on the side of the train. The numerical results show that the vibration is a lateral mode of the car-body and decreases the ride comfort. On the basis of this numerical simulation, more accurate simulation is necessary for the shape of tunnel and the lateral suspension system of a high speed train.

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