| 摘要 |
A vibration testing device which allows to reduce a space for performing a vibration test and to vertically vibrate the bearing of a vehicle without using a vibration mechanism of large output. The vibration testing device comprises a bearing unit which rotatably supports the axle of the truck of a vehicle an axle drive mechanism which rotates the axle, a vertical vibration unit which vertically vibrates the bearing unit, an air cylinder mechanism which applies an upward load to the bearing unit, and a reaction frame which presses the truck from above. |
