Tytuł pozycji:
Magnetic field impact on the temperature and pressure distribution in slide journal bearing
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.