Methodology of estimation of temperature mode in the 2xBgu type railway braking system

Abstract The article describes two numerical FEM models of frictional heating to estimate the temperature distribution in the 2xBgu friction brake of a rail vehicle during repetitive braking. The numerical tests were compared with the temperature measurements carried out on a full-scale inertia dynamometer for two different friction materials of brake blocks working in the 2xBgu system. The paper demonstrates, by comparison with experimental data, that the proposed numerical models can be used as a tool supporting engineering works to determine the temperature of friction elements of a railway block brake, also for long-lasting braking processes.