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Journal of KONES

Tytuł artykułu

The influence of changes in the rotational speed of the shaft journal slide bearing on the acoustic emission signal

Autorzy Gesella, G.  Murawski, L. 
Treść / Zawartość
Warianty tytułu
Języki publikacji EN
EN The paper presents preliminary studies of a slide bearing operation by using an acoustic emission. These studies were designed to test the usability of this method for the diagnosis and monitoring of bearings in marine drive system (in particular, stern tube bearing). This paper proposes a method of testing the operating status of the slide bearing using acoustic emission. It discusses the research station, where the study was conducted. The authors paid special attention to the impact of rotation speed of the shaft journal bearing sliding to change some parameters of the acoustic emission signal. The gathered results were analysed and it was evaluated how the rotational speed of the shaft journal affects the individual signal parameters of acoustic emission. Additionally, the sensitivity of the method was evaluated. The article describes: the basics of testing with using the acoustic emission, parameters of the acoustic signal (the acoustic emission burst count, arrival time, duration time, signal amplitude, signal energy and RMS) and the equipment necessary for measurements by using this method. This method, unlike the ultrasonic testing detects only the active wave source, and it is very sensitive to detect changes in the moment when the installation is operating under load. It proposes to use the acoustic emission method to study operational conditions of a slide bearing. Slide bearings are used in many constructions of mechanisms, machines and equipment. They are a strategic element of their design and their improper work leads to the machine damage in a very short period of time, which automatically excludes it from further exploitation. For this reason, the correct assessment of the technical condition of slide bearing and knowledge of the current operating conditions of the slide bearing are extremely important (particularly in the case of bearings in marine propulsion system).
Słowa kluczowe
EN non-destructive testing   diagnostic   acoustic emission   slide bearing  
Wydawca Institute of Aviation
Czasopismo Journal of KONES
Rocznik 2016
Tom Vol. 23, No. 2
Strony 121--128
Opis fizyczny Bibliogr. 11 poz., rys.
autor Gesella, G.
  • Gdynia Maritime University, Department of Mechanical Engineering Morska Street 81-87, 81-225 Gdynia, Poland tel.: +48 58 5586549, +48 58 5586481,
autor Murawski, L.
  • Gdynia Maritime University, Department of Mechanical Engineering Morska Street 81-87, 81-225 Gdynia, Poland tel.: +48 58 5586549, +48 58 5586481,
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[6] PN-EN 13554:2011 Badania nieniszczące – Emisja akustyczna – Zasady ogólne.
[7] PN-EN ISO 1330-9:2009 Badania nieniszczące – Terminologia – Część 9: Terminy stosowane w badaniach emisją akustyczną.
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[11] Introduction to Acoustic Emission NDT,, Accessed 26. may 2016.
PL Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.
Kolekcja BazTech
Identyfikator YADDA bwmeta1.element.baztech-2f4e3aa3-f026-4f19-bd78-b1cf392657db
DOI 10.5604/12314005.1213577