Physical and Chemical Geotechnologies

Purpose

Estimation of technical condition parameters for complex electromechanical systems.

Methodology

The studies were carried out through consideration of power and kinematic parameters in the nonstationary motion of the wheel, and also through analyzing the interaction of a wheel and a rail on an elementary contact section in the presence of a normal and shear load.

Findings

Determination of the functional connection of the power (tangential reaction) and kinematic (relative slip) parameters in the nonstationary motion of the wheel is the subject of the paper. A mathematical model is proposed for the interaction of a wheel and a rail on an elementary contact section in the presence of a normal and shear load. The influence of the regime parameters of the contacting bodies on the coefficient of the shape with the moving point of contact is considered for interacting bodies. The functional relationship between the power and kinematic parameters is established, which allows predicting the operational properties and solve the problems of the dynamics of the rail transport with a higher degree of accuracy. Knowledge of the processes physics occurring in the contact area of the wheel-rail pair will increase the efficiency of torque transmission in the quasi-stationary mode during vehicle movement.

Keywords: tangential reaction, point of contact, creep, stress

References

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