CFD analysis of influence of axial position of shaft on hydrodynamic lubrication of slide conical bearing

• Autorzy: Czaban A.

Identyfikatory

DOI

10.5604/01.3001.0010.3065

• Języki publikacji: EN

Abstrakty

EN

During the operation of a slide bearing, the position of its shaft or sleeve varies due to many factors, such as vibrations, load changes, changes in the lubricating viscosity. The vibrations or varying load can cause, that the position of the bearing shaft, measured along its axis of rotation, changes. This is particularly important for sliding bearing with conical geometry. Due to the geometry of this kind of bearing, i.e. where the radius of this bearing (of the shaft and sleeve) has not a constant value, as in the case of a journal bearing, it is more difficult to obtain proper values and describe its hydrodynamic lubrication. This article shows the results of hydrodynamic lubrication of the slide conical bearing, for which the changes in the position of the bearing shaft in the longitudinal direction, i.e. along its axis of rotation, were taken into account. The commercial CFD software, designed for solving general for flow phenomena problems, was used in the simulations. This article shows the results of simulations, assuming that the lubricating oil behaves as a generalized Newtonian fluid. The hydrodynamic pressure distributions, load carrying capacities and friction torques were calculated for the concerned bearing. The aim of this work is to show how the operating parameters of the slide conical bearing can be influenced, by only changes of the position of the shaft along the axis of its rotation.

Słowa kluczowe

EN

hydrodynamic lubrication; conical bearing; slide bearing; radial clearance; CFD

• 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: 2017
• Tom: Vol. 24, No. 3
• Strony: 37--44
• Opis fizyczny: Bibliogr. 5 poz., rys.

Twórcy

autor

Czaban A.

• Gdynia Maritime University, Faculty of Marine Engineering Morska Street 81-87, 81-225 Gdynia, Poland tel.:[phone], fax: [phone]

Bibliografia

• [1] Czaban, A., The Influence of Temperature and Shear Rate on the Viscosity of Selected Motor Oils, Solid State Phenomena, Vol. 199, pp. 188-193, 2013.
• [2] Miszczak, A., Analiza hydrodynamicznego smarowania ferrocieczą poprzecznych łożysk ślizgowych, Fundacja Rozwoju Akademii Morskiej, Gdynia 2006.
• [3] Nowak, Z., Wierzcholski, K., Flow of a Non-Newtonian Power Law Lubricant trough the Conical Bearing gap, Acta Mechanica 50, pp. 221-230, 1984.
• [4] Nowak, Z., Wierzcholski, K., Effect of a temperature dependent lubricant consistency on the capacity of a conical journal bearing, Proc. IX Intl. Congress on Rheology, pp. 583-589,Acapulco 1984.
• [5] Wierzcholski, K., Flow of pseudo-plastic non-Newtonian lubricant through the slide bearing curvilinear gap, International Congress on Tribology Eurotrib 85, Conference Proceedings, pp. 1-5, Lyon 1985.

Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017).