ABSTRACT
The effect of bearing elastic deformation on the thermo-hydrodynamic performance of self-lubricated misaligned porous circular journal bearing has been investigated in the present work. Suitable mathematical model is developed to study such effect. The modified Reynolds equation to take into consideration the slip velocity effect, the Darcy s equation, the energy equation and the heat conduction equation have been simultaneously solved numerically using appropriate boundary conditions. The oil film thickness equation has been modified to take into consideration the effect of bearing misalignment and the bearing elastic deformation. A suitable oil film viscosity model to consider the effect of oil film temperature has been used. The mathematical model as well as the computer program written to solve the governing equations were verified by comparing the results of the load carrying capacity and the attitude angle obtained in the present work with obtained by Boubendir, et al. (2010). The maximum percentage difference of the results obtained in the present work is 4%. The combined effects of elastic deformation and journal misalignment on the different bearing characteristics have been investigated. It has been shown that considering the elastic deformation of the bearing bush has a beneficial effect by removing the pressure spikes at both end of the misaligned bearing.