Abstract
Hydrodynamic journal bearings are analyzed by
using Computational fluid dynamics (CFD) and
fluid structure interaction (FSI) approach in order
to find Pressure profile and temperature distribution
in the bearing structure, satisfying the boundary
conditions. The Journal bearing is designed in
ANSYS software. The journal is modeled as a
moving wall with an absolute rotational speed and
bearing is modeled as a stationary wall. Design
parameters like pressure distribution and
temperature distribution are considered for the
analysis. It is assumed that the flow of lubricant is
laminar and steady. Also cavitations effects in the
bearing are neglected by setting all negative
pressures to ambient pressures. Design data like
journal diameter, clearance, L/D ratio, minimum
film thickness, journal speed and oil viscosity are
taking by machine design data book for making
analytical calculation. The CFD results are
compared in order to validate the model with the
analytical res