Computer-aided design of hydrodynamic journal bearings considering thermal effects

Abstract A computer-aided design of hydrodynamic journal bearings is provided considering thermal effects. The Reynolds equation has been solved simultaneously along with the energy equation and heat conduction equations in bush and shaft to obtain the steady-state solution. Using the steady-state solution, a computer-aided design of such bearings is given. In this process, a data bank is generated that consists of load, friction factor and flow rate for different L/D and eccentricity ratios. These data are curve fitted to derive empirical relations for steady-state characteristics. These equations were then used in the design of such bearings. After designing the bearing, stability was checked using a linearized method.