Improvements to the theoretical model of the vibrational behaviour of an infinite rail (whole-rail cross-section model, and a new version of PERM in the Springboard package) (IM-SAV-078)

Thompson has developed a periodic structure model of a half rail cross-section ('half-rail' model) for the vibration behaviour of a rail. This model is implemented in the program PERM which is part of the SPRINGBOARD package of programs for the prediction of wheel/rail noise. In this model it is...