This article is cited in 38 papers

Time-frequency analysis of acoustic signals in the audio-frequency range generated during Hadfield’s steel friction

S. A. Dobrynin^abc, E. A. Kolubaev^abc, A. Yu. Smolin^abc, A. I. Dmitriev^abc, S. G. Psakhie<sup>abc

a</sup> Institute of Strength Physics and Materials Science, Siberian Branch of the Russian Academy of Sciences, Tomsk
^b Tomsk State University
^c Tomsk Polytechnic University

Abstract: Time-frequency analysis of sound waves detected by a microphone during the friction of Hadfield’s steel has been performed using wavelet transform and window Fourier transform methods. This approach reveals a relationship between the appearance of quasi-periodic intensity outbursts in the acoustic response signals and the processes responsible for the formation of wear products. It is shown that the time-frequency analysis of acoustic emission in a tribosystem can be applied, along with traditional approaches, to studying features in the wear and friction process.

Received: 03.03.2010

 English version: Technical Physics Letters, 2010, 36:7, 606–609

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