Technical Diagnostics and Non-Destructive Testing, 2024, №02



2024 №02 (06)

DOI of Article 10.37434/tdnk2024.02.01

2024 №02 (02)

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Technical Diagnostics and Non-Destructive Testing #2, 2024, pp. 3-10

Investigation of the correlation structure of the vibration signal of the decanter bearing assembly

I.M. Javorskyj^1,2, R.M. Yuzefovych^1,3, O.V. Lychak¹, B.R. Komarnytskyi¹, R.I. Khmil³, O.Y. Smirnova³

¹1G.V. Karpenko Physico-Mechanical Institute of NASU. 5 Naukova Str., 79060, Lviv, Ukraine. Е-mail: roman.yuzefovych@gmail.com
²Bydgoszcz University of Sciences and Technology. 7, Prof. S. Kaliskiego Al., 85796, Bydgoszcz, Poland.
³Lviv Polytechnic National University.12 S. Bandery Str., 79000, Lviv, Ukraine.

The correlation structure of the vibration signal of the decanter bearing assembly was analyzed using the theory and methods of statistics of periodically non-stationary random processes. Indicators for detecting and evaluating the propagation of the defects have been developed. The relationship between the width of the fi ltering bandwidth and the parameters of the amplitude spectrum of the signal variation was investigated. 21 Ref., 3 Tabl., 10 Fig.
Keywords: decanter, vibration, trial period, correlation function, spectral density, band fi ltering, defect development indicator

Received: 02.05.2024
Received in revised form: 22.05.2024
Accepted: 11.06.2024

References

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