Magnetic field impact on the temperature and pressure distribution in slide journal bearing

• Autorzy: Wierzcholski K. , Miszczak A.

Identyfikatory

DOI

10.5604/01.3001.0010.2947

• Języki publikacji: EN

Abstrakty

EN

The topic of the presented article aims to demonstrate a new principle of hydrodynamic lubrication in mechanical, non-isothermal and electro-magnetic fields. In this article is presented hydrodynamic slide journal bearing in electromagnetic field. The aim of this article is a new general analytical and numerical solution determined the influence of the electro-magnetic field on the temperature distribution in the internal surfaces of the slide-bearing sleeve and pressure distribution in bearing gap. To the research methods and materials used in this article realization belong: the Mathcad 15 Professional Program and new semi-analytical methods applied for theory of hydrodynamic lubrication extended to the curvilinear orthogonal surface and coordinates. Particular solutions are introduced to the cylindrical coordinates. To the obtained results of lubrication of movable sleeve surface belong the increments of the bearing load carrying capacity during the presence and absence magnetic induction field in the case if non-Newtonian lubricant features and constant temperature are taken into account. Simultaneously are observed the increments of the bearing load carrying capacity during the presence magnetic field and Newtonian lubricant. Temperature increments (decrements) without and with magnetic field lead to the hydrodynamic pressure decrements (increments). Moreover are assumed simultaneously the temperature T and oil dynamic viscosity variations in length, width and bearing gapheight directions. From this assumption follows, that the energy equation must be solved simultaneously with the equations of motion i.e. consequently with pressure equation where viscosity depends on temperature and temperature depends on the coordinate in gap height direction.

Słowa kluczowe

EN

slide journal bearing; magnetic induction field; non-Newtonian lubricant; conjugated fields; new general method; load carrying capacity; pressure decrements; pressure increments

• 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. 2
• Strony: 279--286
• Opis fizyczny: Bibliogr. 13 poz., rys.

Twórcy

autor

Wierzcholski K.

• Technical University of Koszalin Faculty of Technology and Education Śniadeckich Street 2, 75-453 Koszalin, Poland tel.: [phone], fax: [phone]

autor

Miszczak A.

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

Bibliografia

• [1] Apanasewicz, S., Kazimierski, Z., Lewandowski, J., Szaniawski, A., The flow of the gas layer between two conical surfaces, Fluid Dynamic Transactions, Vol. 5, pp. 19-36, 1975.
• [2] Breczko, T., Pewne aspekty obliczania poprzecznych hydrodynamicznych łożysk ślizgowych, Rozprawy Inżynierskie, 23, 3, pp. 431-445, 1975.
• [3] Boncompain, R., Fillon, M., Frene, J., Analysis of thermal effects in hydrodynamic bearings, Journal of Tribology, Vol. 108, pp. 219-223, 1986.
• [4] Gadomski, A., Bełdowski, P., Rubi, J. M., Urbaniak, W., Auge, W. K., Santamarìa-Holek I., Pawlak, Z., Some conceptual thoughts toward nano-scale oriented friction in a model of articular cartilage, Mathematical Biosciences, Vol. 244, pp. 188-200, 2013.
• [5] Jang, J. Y., Khonsari, M. M., Thermodynamics design charts for slide hydrodynamic journal bearing, Trans. of ASME, Journal of Tribology, Vol. 119, pp. 859-868, 1997.
• [6] Jeng, M. C., Zhou, G. R., Szeri, A. Z., A Thermohydrodynamic Solutions of Pivoted Thrust Pads: Part I-Theory. Journal of Tribology, Vol. 108, pp. 195-207, 1986.
• [7] Miszczak, A., Analiza hydrodynamicznego smarowania ferrocieczą poprzecznych łożysk ślizgowych, Fundacja Rozwoju Akademii Morskiej w Gdyni, pp.1-247, Gdynia 2006.
• [8] Pawlak, Z., Figaszewski, Z. A., Gadomski, A., Urbaniak, A., Oloyede, A., The ultra–low friction of the articular surface is pH-dependent and is built on a hydrophobic underlay including a hypothesis on joint lubrication mechanism, Tribology International, Vol. 43, pp. 1719-1725, 2010.
• [9] Pawlak,Z., Urbaniak,W., Hagner-Derengowska,M.W., The ProbableExplanation forthe Low Friction of Nature Joints, Cell Biochemistry and Biophysics, Vol. 71 (3), pp. 1615-1621, 2015.
• [10] Wierzcholski, K., Miszczak, A., Impulsive and Periodic Class of Solutions for Hydrodynamic Theory of Lubrication. Journal of KONES Powertrain and Transport, Vol. 19, No. 4, pp. 654-658, 2012.
• [11] Wierzcholski, K., The Lipschitz-Pickard Successive Step Method in Hydrodynamic Lubrication Problem, Journal of KONES Powertrain and Transport, Vol.19, No.1, pp. 483-490, 2012.
• [12] Wierzcholski, K., Bio and slide bearings: their lubrication by non Newtonian fluids and application in non conventional systems. Vol. II: The theory of human joint unsteady lubrication. Monograph, Published by Wierzcholski Krzysztof, Gdańsk University of Technology, pp. 1-172, Gdańsk 2006.
• [13] Wierzcholski, K., The method of solutions for hydrodynamic lubrication by synovial fluid flow in human joint gap, Control and Cybernetics, Vol. 31, No. 1, pp. 91-116, 2002.

Uwagi

PL

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