OPTIMIZATION OF THE CONTROL CHARACTERISTICS OF AUTOMATIC REGULATOR OF CARGO REGIMES OF WAGGON BRAKING

SENKO Veniamin I., Dr. Techn. Sc., Professor, Rector, Belarusian State University of Transport, Gomel, Republic of Belarus

GALAY Elena E., Researcher, Belarusian State University of Transport, Gomel, Republic of Belarus, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

The brake force implemented in braking a freight car shall not exceed the traction of the wheel and rail. It depends on the car loading and is limited by the maximum pressing force which is permissible for the brake shoes. The control characteristics of the automatic regulator of braking modes (automatic mode) is the dependence of the pressure in the brake cylinder of the car on its axial load. The pressure, continuously controled in automatic mode, is limited by the air diffuser, which carries out only step changes in pressure in the brake cylinder, depending on the load. The technique and actual results of calculation of the rational dependence of the pressure in the brake cylinders on the car loading are presented. Optimum control, allowing to reach the maximum braking efficiency and most favorable mode in the longitudinal dynamics of the train is observed at equal specific braking forces of cars with different axial loads. In the case with one-sided pressing of the brake shoes on the wheel due to restrictions in strength and thermal mode of the friction site optimization is possible for cars with an axial load up to 18 t / axle, with two-sided-in the entire load range.

automatic mode, pressure, braking, brake shoes, brake force, control, traction, friction

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