Dynamic Behavior of a Railway Track Under a Moving Wheel Load Modelled as a Sinusoidal Pulse

The aim of this paper is to evaluate the train/track induced loads on substructure by modelling wheel, at each instant, as a moving sinusoidal pulse applied in very short period time. This assumption has advantage being more realistic it reduces impact time load definition. To that end, mass, stiffness, and dumping matrices an elementary section track will be determined. As result, equations motion subjected rectangular respectively concluded. Two numerical methods resolution equation, depending nature matrix, presented. computation results compared order conclude about relevance model. approach used assess value received substructure.