Abstract: Thermoelastohydrodynamic lubrication (TEHL) analysis is presented to investigate the static performance of tilting-pad journal bearings. Completely numerical solution is obtained. The Newton-Raphson method is employed to predict the bearing characteristics of the hydrodynamic pressure，the eccentricity and the pad attitude angles simultaneously. For the temperature calculation 3-D energy equations for the fluid under each pad and 3-D heat transfer equations for the pads are solved using a sequential sweeping method. The elastic deformation and thermal expansion of each pad are calculated with the 20-node iso-parameter finite element method. The results show that the elastic deformation is not so important as the thermal expansion.

Key words: Tilting-pad journal bearing Thermoelastohydrodynamic Newton-Raphson method