Methodology of thermal loading estimation of the brake mechanism of a truck

Abstract

The paper presents the results, conclusions of the assessment of friction pairs in the aspect of the phenomenon of fading. As you know, most of the kinetic energy of a car with ABS is extinguished due to the work of friction in the brake mechanism. Overheating the brake mechanism, namely its friction pairs, leads to the appearance of the phenomenon of critical fading, accompanied by a sharp decrease in the braking torque. When the metal friction elements of braking devices operate in a repeated-short-term mode, it is advisable to assess their operating parameters at a steady-state thermal regime, i.e. under the most severe temperature conditions. The proposed technique makes it possible to obtain a high convergence of the calculated values with the experimental data. Evaluation of thermally loaded using this method can be carried out at any stage of the design and does not require large computing power. Visualization of the results allows you to identify areas of increased heating to assess the need to change the design of the brake mechanism.