Short-pitch rail corrugation: A possible resonance-free regime as a step forward to explain the “enigma”?

Additionally, some approximate calculations including discrete supports, using a typical concrete sleepers vertical receptance of BR use, show no evidence of corrugation mechanism at the pinned-pinned resonance, at least in the longitudinal direction. A full comparison between lateral and longitudinal mechanisms would depend on the particular value of the lateral creepage vs. longitudinal creepage, system-specific. The present “resonance-free” mechanism is a possible alternative for the data which fall outside the pinned-pinned resonance range.