Kurhan D. Methodology for calculating the railway track at interaction with fast-speed rolling stock

Analyzes the current state of scientific support and the availability of conditions for the introduction the fast-speed in Ukraine, and in the future, high-speed trains. Improved the method of analytical calculations of the stress-strain state for the railway track to take into account the differential elasticity of the rail support. Expanded impact regularities of modern passenger trains on the stress-strain state of the railway track, based both on theoretical and experimental research. The model of track-rolling stock interaction was developed. It allows determining complete spatial-temporal account of the deflection dynamics of the rail support, which enables the execution of calculations, including for conditions of fast-speed and high-speed trains. Analytical methods for assessing the life cycle of railway track sections based on entropy of system were developed.