ABSTRACT
In the recent trend of speed-up on railways, it appears that the coupling of cars as a train has an important effect on the car vibration. The effect is remarkable at each coupled car on the Shinkansen, in the speed range over 210 km/h. Especially, the vibration on the rear side of the last car grows large and its riding comfort is harmed with the speed-up of the train operation. This paper describes analysis of the vertical vibration and its effect on the riding comfort of a train composed of several bogie cars. In this study, a calculation model of 5 cars coupled in a train is used. A simplified restrictive force is considered between neighboring cars at each car end. The simulation model is validated with field data of Shinkansen, and some calculation results are shown for the improvement of the riding comfort.
