Research Article

Modelling Ambient Vibration Responses Induced by Operation of Metro Train on Curved Rail Segment with Small Curvature Radius

Figure 8

Irregularity spectrum of the grade five track of US. (a) Lateral irregularity of the left rail. (b) Transverse irregularity of the right rail. (c) Vertical irregularity of the left rail. (d) Vertical irregularity of the right rail.
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(b)
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