On new effects of wheel-rail interaction

Abstract

The paper is devoted to the experimental, theoretical analysis and computer simulation of influence of elastic properties of contact stiffness and wheel-plate stiffness on the forces of vehicle-track interaction. Three types of wheels are considered with different contact stiffness and wheel-plate design. Exemplary simulation of freight car interaction with track which posses one corrugated rail for each type of wheel is presented.

On kinematic and self-excited rail vehicle–track interaction

“…An alternative approach to the classic rail vehicles hunting [10], based on instability of two continuous, one-dimensional systems in relative motion is proposed. The presented results extend our previous considerations presented in [3,11] and in [12]. The case devoted to the friction-induced vibration which is the reason of many damages of trains and tracks was considered.…”

Effect of periodicity of railway track and wheel–rail interaction on wheelset–track dynamics

“…At the speed V = 100 km/h, the maximum dynamical force reaches a value of about 1.7 times the static force. For more precise evaluation of the contact force, the wheel plate stiffness and deflection of the rim ought to be taken into account, see [9]. In the further approximation, lateral and longitudinal displacements of the contact point could be included [10,11].…”

Research into parameters of energy loss when trains influence the track with wooden sleepers

“…Thus, [7] conducted theoretical and experimental research into elastic qualities of the system wheel-rail under conditions of action of negative factors. As an example, authors conducted computer simulation of the interaction of a freight wagon with a railway line, one of the rails of which has defect in the quality of the corrugated surface.…”

“…If we approach these issues from general positions -from the point of research into dissipative processes, then all of the above considered sources [6][7][8][9][10], each in its aspect, investigate a general phenomenon -the dissipation of energy of the object «wheel-rail». As for the given article, it also explores dissipative processes, which take place in a rail track, at its interaction with the rolling stock.…”