Analysis of Thermal Deformation of a Rough Slider and Its Asperities and Its Impact on Load Generation in Parallel Sliders
Heating is inevitable in any bearing operation. This leads to not only the thinning of the lubricant but also could lead to a thermal deformation of the bearing. The present work is an attempt to analyze the influence of thermal deformation on the thermohydrodynamic lubrication of infinitely long tilted pad slider rough bearings. As a consequence of heating the slider is deformed and is assumed to take a parabolic shape. Also the asperities expand leading to smaller effective film thickness. Two different types of surface roughness are considered: longitudinal roughness and transverse roughness. Christensen’s stochastic approach is used to derive the Reynolds-type equations. Density and viscosity are considered to be temperature dependent. The modified Reynolds equation, momentum equation, continuity equation and energy equation are decoupled and solved using finite difference method to yield various bearing characteristics. From the numerical simulations it is observed that the performance of the bearing is significantly affected by the thermal distortion of the slider and asperities and even the parallel sliders seem to carry some load. Keywords—Thermal Deformation, Tilted pad slider bearing, longitudinal roughness, transverse roughness, load capacity.
On the Solution of the Reynolds Equation for Slider-Bearing Lubrication—VI: The Parallel-Surface Slider Bearing Without Side Leakage

 Treating the density of the lubricant as a function of temperature and the viscosity as a function of pressure and temperature, the problem of the parallel-surface slider bearing without side leakage is solved exactly for the case of adiabatic flow. The theory permits rapid evaluation of the maximum film pressure, the point in the film where the maximum pressure occurs, the film temperature at this point, and the film temperature at outlet.
Ground Fault Protection for Electric Utility Generating Station Medium Voltage Auxiliary Power Systems
Most generating station designs have medium voltage auxiliary power systems with low resistance grounded neutrals.1 In order to provide even higher reliability, the auxiliary power distribution system configurations supply increasingly redundant process equipment.