Detail publikace
Monitorování signálu akustické emise ze zatížených axiálních ložisek
HORT, F. MAZAL, P. VLAŠIC, F.
Český název
Monitorování signálu akustické emise ze zatížených axiálních ložisek
Anglický název
Monitoring of Acoustic Emission Signal of Loaded Axial Bearings
Typ
článek v časopise - ostatní, Jost
Jazyk
en
Originální abstrakt
The disclosure of initial stadium of contact fatigue of rotating machines is very difficult. At present, some methods which are suitable for diagnosis exist, such as vibration method, shock pulse method, acoustic emission and others. The article describes laboratory tests with axial bearings which are monitored by acoustic emission method. In the article, experimental stands, measuring devices and chosen types of axial bearings are presented. The exploitation of acoustic emission signal for the lifetime evaluation of selected bearings is shown with the characteristics as number of counts, rise time, maximal amplitude or duration of event. The bearing lifetime is separated to three stages and a representative sample in its time and frequency domain for each of them is chosen. Final failures of the bearings are shown too. The paper is focused also on examples of results obtained with continuous AE signal sensing.
Český abstrakt
Popis identifikace vzniku iniciačních stádií kontaktního poškození rotačních strojů je velmi obtížné. V současné době existuje několik vhodných postupů, které jsou vhodné pro tento typ diagnostiky (vibrační diagnostika, shock pulse metoda, akustická emise atd). Článek popisuje laboratorní experimenty na axiálních ložiscích, které byly monitorovány metodou akustické emise. Článek popisuje experimentální zařízení, metodiku zkoušek a zpracování signálu.
Anglický abstrakt
The disclosure of initial stadium of contact fatigue of rotating machines is very difficult. At present, some methods which are suitable for diagnosis exist, such as vibration method, shock pulse method, acoustic emission and others. The article describes laboratory tests with axial bearings which are monitored by acoustic emission method. In the article, experimental stands, measuring devices and chosen types of axial bearings are presented. The exploitation of acoustic emission signal for the lifetime evaluation of selected bearings is shown with the characteristics as number of counts, rise time, maximal amplitude or duration of event. The bearing lifetime is separated to three stages and a representative sample in its time and frequency domain for each of them is chosen. Final failures of the bearings are shown too. The paper is focused also on examples of results obtained with continuous AE signal sensing.
Klíčová slova česky
akustická emise, axiální ložisko, doba náběhu, časová oblast, frekvenční oblast
Klíčová slova anglicky
Acoustic emission, Axial bearing, Rise time, Time domain, Frequency domain
Rok RIV
2011
Vydáno
10.11.2011
Nakladatel
David Publishing
Místo
Libertyville, USA
ISSN
1934-8959
Ročník
2011
Číslo
5A
Strany od–do
717–724
Počet stran
8
BIBTEX
@article{BUT74812,
author="Filip {Hort} and Pavel {Mazal} and František {Vlašic},
title="Monitoring of Acoustic Emission Signal of Loaded Axial Bearings",
year="2011",
volume="2011",
number="5A",
month="November",
pages="717--724",
publisher="David Publishing",
address="Libertyville, USA",
issn="1934-8959"
}