RT Journal Article SR Electronic A1 Panchenko, Sergii A1 Gerlici, Juraj A1 Lovska, Alyona A1 Vatulia, Glib A1 Ravlyuk, Vasyl A1 Rybin, Andrij T1 Method for Determining the Factor of Dual Wedge-Shaped Wear of Composite Brake Pads for Freight Wagons JF Communications - Scientific Letters of the University of Zilina YR 2024 VO 26 IS 1 SP B31 OP B40 DO 10.26552/com.C.2024.006 UL https://komunikacie.uniza.sk/artkey/csl-202401-0002.php AB The work highlights the results of a study into the dual wedge-shaped wear of composite brake pads for freight wagons. It has been found that the over-normative wear makes the area of a composite brake pad larger in the lower part up to a value directly proportional to the wagon mileage and smaller in the upper part. To assess the braking efficiency of a rail vehicle, a graphical analytical method has been developed; it allows determining the factor of dual wedge-shaped wear of pads depending on the wagon mileage. The results of calculation were verified by comparing two samplings obtained by mathematical and computer modelling. The results of calculation have proven that the hypothesis on the adequacy is not rejected.The results of the study conducted will allow more accurate assessment of the braking efficiency of freight rolling stock to be made, as well as contribute to improving the safety of train traffic.