Friction forces measurements for slide bearing test stand in maritime university Gdynia using the acoustic emission method

• Autorzy: Ziegler B. , Wierzcholski K. , Miszczak A.
• Języki publikacji: EN

Abstrakty

EN

The present paper determines the results of experimental research performed in Gdynia Maritime University and connected with the measurements of hydrodynamic friction forces in slide journal slide bearings by using the Acoustic Emission Method. A new method for mechanical friction force measuring was carried out at this test stand, simultaneously the friction force will be indicated by an optimized Acoustic Emission System. The friction conditions at the test were measured by two different methods. At the one hand the friction power measurement and at the other hand the Acoustic Emission Analysis. One characteristic of the friction power measurement is the rather inert reaction to the oscillations of the slide bearing. The advantage of the method is the fact that one can measure absolute values of the friction power. In opposite to that, the Acoustic Emission Analysis measures the high frequency oscillations caused by the hydrodynamic friction between the oil molecules. The advantage of this method is the fact that this oscillations can be executed directly from the source to the sensor, what enables us to do an "online-measurement". The Acoustic Emission Analysis is (in opposite to the aforementioned friction power measurement) a relative method, which means, that the absolute amount of a RMS-Value depends on the measuring chain. The results are compared and discussed with other results obtained in experiments performed in University of Applied Science Giessen.

Słowa kluczowe

EN

acoustic emission (AE); RMS; experimental data; test stand; journal bearing

• Wydawca: Łukasiewicz Research Network - Institute of Aviation ; European Science Society of Powertrain and Transport KONES Poland ; Wydawnictwo Instytutu Technicznego Wojsk Lotniczych
• Czasopismo: Journal of KONES
• Rocznik: 2008
• Tom: Vol. 15, No. 2
• Strony: 571--577
• Opis fizyczny: Bibliogr. 7 poz., rys.

Twórcy

autor

Ziegler B.

autor

Wierzcholski K.

autor

Miszczak A.

• Maritime University Gdynia Morska Street 81-87, 81-225 Gdynia, Poland tel:[phone], fax:[phone],

Bibliografia

• [1] American Society of Testing Materials, Standard Guide for Determining the Reproducibility of Acoustic Emission Sensor Response, American Society for Testing and Materials, pp. 976-994, USA 2003.
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• [3] Chao, Zhang, Zixia, Yi, Zhiming, Zhang, THD Analysis of Higd Speed Heavily Loaded Journal Bearings Including Thermal Deformation, Mass Conserving Cavitation, and Turbulent Effects, Transactions of the ASME, Journal of Tribology, Vol. 122, pp. 597-602, 2000.
• [4] Czichos, H., Habig, K. H., Tribologie - Handbuch Reibung und Verschleiß, Vieweg & Sohn Verlag, Wiesbaden, 2003.
• [5] Dwyer-Joyce, R. S., Harper, P., Drinkwater, B. W., A Method for the Measurement of hydrodynamic Oil Films Using Ultrasonic Reflection, Springer Verlag, Tribology Letters, Vol. 17, No. 2, pp. 337-348, 2004.
• [6] Ma, M.-T., Taylor, C. M., An experimental investigation of thermal effects in circular and elliptical plain journal bearing, Tribology International, Vol. 29, No. 1, pp. 19-26, 1996.
• [7] Niemann, G., Winter, H., Hohn, B.-R., Maschinenelemente, Band 1, Berechnung und Konstruktion von Maschinenelementen, Springer, Berlin 2001.