Output details

Railway wheel-flat and rail surface defect modelling and analysis by time–frequency techniques

Damage to the surface of railway wheels and rails commonly occurs in railway industry and, if not detected at an early stage, can result in rapid deterioration and possible failure incurring high maintenance costs. The paper presents an investigation into the modelling and simulation of wheel flat and rail surface defects and the detection of wheel flats and rail surface defects by time-frequency analysis. The experimental results from a scaled roller test rig show that this approach can significantly reduce unwanted interferences and extract weak signals from strong background noises to help to detect the incipient wheel and rail damages.