Abstract
In the present work analysis of a gas lubricated multileaf journal bearing has been presented. The two-dimensional compressible Reynolds equation is solved to establish the pressure field in the clearance space of the bearing. The elastic deformation equation is coupled with the Reynolds equation to get the foil deflections and change in film thickness. The problem has been formulated using the incremental finite element method. The system of equations has been solved using the Newton Raphson iterative procedure. The static performance parameters such as load carrying capacity, frictional torque, minimum film thickness and dynamic characteristics in terms of stiffness and damping coefficients have been presented in a non-dimensional form for various design parameters such as compressibility number, eccentricity ratio, foil stiffness parameter and L/D (length to diameter ratio of the bearing) ratios.
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