Thermal effects in externally pressurized porous conical bearings with variable viscosity (Q5946969)

The paper analyses the porous constant-gap externally pressurized conical bearings with temperature-dependent viscosity, when the slider rotates with uniform angular velocity. The analysis includes lubricant inertia due to rotation of the slider and neglects convective inertia. The temperature generated in the lubricant film is obtained using the energy equation. The bearing characteristics are obtained by solving the governing equations numerically. The results show that for the surfaces which are highly porous, the inlet pressure decreases remarkably. This results in reduced load capacity of the bearing. The variations in the permeability do not affect the torque.