Information and Diagnostics Systems

Investigation of Vibrations in Dry Friction Pair using PNRP Methods

Roman Sliepko (roma.srt@gmail.com) 1, Roman Yuzefovych 1,2, Oleh Lychak1

1. Karpenko Physico-mechanical Institute of NAS of Ukraine
2. Lviv Polytechnic National University

https://doi.org/10.15407/msse2023.246

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Keywords

vibration signal, dry friction, periodically non-stationary random process, correlation, spectrum

Abstract

Methods of periodical non-stationary random processes (PNRP) we applied to analysis of vibration time series of dry friction pair. Three different stages of surface frictional destruction during experiment were detected using spectral and correlation properties of vibration signals.

References

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  2. Javorskyj I.M. Mathematical models and analysis of stochastic oscillations – Lviv, PMI NAS of Ukraine, 2013. – 804 p. (in Ukrainian)