Theoretical Studies on the Longitudinal Inhomogeneity of Track Stiffness and a Track Status Estimation Method

<div>The PDF of dynamic indices specific to different longitudinal distribution of rail pad vertical stiffness. (a) Wheel-rail vertical force; (b) rail vertical displacement; (c) track-slab vertical displacement.</div>

Advances in Civil Engineering

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Figure 6

Figure 6: Theoretical Studies on the Longitudinal Inhomogeneity of Track Stiffness and a Track Status Estimation Method 