| 摘要 |
PROBLEM TO BE SOLVED: To provide a high speed railway vehicle capable of efficiently attenuating vibration propagated from underfloor to an upper floor.SOLUTION: The present application includes a plurality of means for solving an issue. As one example of them, relating to a railway vehicle containing a joist, in a case where a floor structure vibrates due to vibration of a truck and an aerodynamic sound outside a vehicle, and the vibration is propagated to an upper floor through the joist, there are provided an attenuation material provided on a joist side face which constraints deformation of the joist, and a bonding material for pasting the attenuation material to the joist side face, for attenuating the vibration that is propagated from the floor structure to the upper floor.SELECTED DRAWING: Figure 5 |
