Table 1 Morphology of residual waviness generated by the rail profile, and calculated and experimental values of their wavelength and wave height.

From: Investigation of the effect of residual waviness formed by rail profile milling of reshaped surface on wheel-rail contact stresses and low cyclic fatigue

Milling speed (m/h)

Milling thickness (mm)

Residual waviness (morphology)

Wavelength λL (mm)

Wave height Hλ (μm)

Calculation

Experiment

Calculation

Experiment

300

0.3

Water wave

2.60

2.4–3.2

2.12

3.2

600

0.3

Snakeskin

5.21

5.0–6.4

8.48

8.6

1000

0.3

Fish scale

8.68

8.2–9.6

23.55

24.0

  1. In Table 1, the waviness height, denoted by HL, is the vertical distance between the peak and trough of the residual waviness.
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