Theoretical Simulation and Experimental Investigation of a Rail Damper to Minimize Short-Pitch Rail Corrugation

Figure 17

Second in situ observation of short-pitch rail corrugation at the Chongqing metro line 2. (a) Original short-pitch rail corrugation that appeared in both lines. (b) Rail dampers were installed on one line after rail grinding. (c) Short-pitch rail corrugation reappeared on the line without rail dampers. (d) Minimal short-pitch rail corrugation reappeared on the line with rail dampers.

(a)

(b)

(c)

(d)