Research Article

Vertical Track Irregularity Influence on the Wheel High-Frequency Vibration in Wheel-Rail System

Figure 6

Acceleration simulated with different stiffness factor in different conditions.
(a) Velocity is 160 km/h
(b) Velocity is 200 km/h
(c) Velocity is 300 km/h
(d) Velocity is 350 km/h