DEVELOPMENT THE METHOD OF THERMOMECHANICAL LOADING MANAGEMENT OF TRIBOLOGICAL CONTACT

At present, rail transport in connection with the economic situation is very important for solving the problems associated with increasing the efficiency and economy of the railway transport. It is necessary to modernize not only the infrastructure, but also locomotives and other railway equipment

Adhesion control in the system of

The paper reviewed the proposed promising method for jet-abrasive treatment of contact surfaces of wheel and rail. The mathematical model of metal removal and the depth of penetration of abrasive particles, which are used in the method for determining surface roughness profile formed by jet-abrasive processing. Concluded that the choice of parameters and treatment regimes for optimal profile of the surface roughness

Study of rail vehicles movement characteristics improvement in curves using fuzzy logic mechatronic systems

The article deals with the effectiveness of reducing the level of force interaction of the rail vehicle wheels with rails in curved sections of the track through the use of mechatronic position control systems for wheel pairs in the rail gauge in the horizontal plane. The approaches to the creation of such a mechatronic system operating on the principles of fuzzy logic are described. To determine the angles of attack of wheels on the rails, it was proposed to use the acoustic emission indicators of the contact of the wheel with the rail. To determine the direction of curvature of the rail track, it is advisable to use data from navigation systems. The study of the dynamics of the rail vehicle during the passage of a curved section of the track in real time was carried out using the Matlab/Simulink software package. The proposed mechatronic control system for the position of the wheel sets in the horizontal plane allows to ensure their optimal installation under various driving conditions in the rail gauge. This makes it possible to minimize the angles of attack of the wheels and reduce the forces of the horizontal interaction of the wheels with the rails