MATHEMATICAL MODELING OF SHAFT LOCOMOTIVE BRAKING WITH A PULSING BRAKE MOMENT FOR DETERMINING THE CHARACTERISTICS OF ITS DRIVE

A.G. Monia¹

¹ Ukraine, Dnipropetrovsk, National metallurgical academy of Ukraine

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ABSTRACT

Objective. development, solution and analysis of a mathematical model that allows to determine the dynamic and kinematic characteristics of the drive of the mine locomotive during braking by pulsating braking torque.

The research methodology are based on mathematical modeling of the process of braking a mine locomotive with a disc brake.

Research results. It is shown that at the beginning of braking the angular speed of the wheel can increase for short periods of time.

Scientific novelty. On the basis of mathematical modeling of the process of braking a mine locomotive with a disc brake, which creates a pulsating braking moment, the dynamic and kinematic characteristics of its drive under real operating conditions are established.

Practical meaning. Graphs of linear and angular velocities of the wheel-motor unit, relative slip, coefficient and force of traction of wheels with rails, braking moment created on the output shaft of the gearbox, and braking torque on the wheel are obtained.

Keywords: locomotive rolling out, braking force, braking moment, coupling coefficient, disc brake, friction pair.

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