Measuring wheel-rail wear in real operation using thermal imaging
[ 1 ] Instytut Transportu, Wydział Inżynierii Lądowej i Transportu, Politechnika Poznańska | [ 2 ] Instytut Technologii Mechanicznej, Wydział Inżynierii Mechanicznej, Politechnika Poznańska | [ 3 ] Instytut Mechaniki Stosowanej, Wydział Inżynierii Mechanicznej, Politechnika Poznańska | [ 4 ] Instytut Automatyki i Robotyki, Wydział Automatyki, Robotyki i Elektrotechniki, Politechnika Poznańska | [ P ] employee | [ SzD ] doctoral school student
2024
paper
english
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EN It is impossible to directly observe wheel-rail interface during real operation of a rail vehicle and measure its instantaneous wear index. The idea to tackle the problem is to utilize thermography, which allows to read temperature values in the wheel-rail contact. The temperature increase stands for a change of internal energy of the wheel material, which in this case is supplied by frictional heat, which in turn can be associated with frictional wear of wheel-rail pair. On this basis, a novel method was formulated to measure the instantaneous wear of wheel and rail using non-contact thermography measurements.