Abstract

FLOREZ SERRANO, Elkin G; CARDONA, Foix S  and  NEBOT, Luisa Jordi. Use of the STFT in the Vibration Analisys to Detect and Characterice Defects at the Wheels Surface of a Train. rev.ing. [online]. 2012, n.36, pp.6-11. ISSN 0121-4993.

The paper shows the experimental procedure used to record the vibrations generated by the passage of a train in a fixed point of the rail. Moreover, it also shows how to identify and characterize a defect on the surface of a wheel, by analyzing the joined time-frequency domain of these vibrations, using the short time Fourier transform - STFT. The results demonstrate the advantages of the STFT in this application, and that the use of a monitorizazing system of the vibration generated on the railway line is efficient and practical to implement a predictive maintenance of the train wheels.

Keywords : Vibraciones; STFT; mantenimiento predictivo; Vibrations; STFT; predictive maintenance.

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