Incompressible and Analytical Study on a Basic Model of Out-Pump Type Complex Journal Gas Bearings

A basic analytical model of the out-pump type complex journal gas bearing is set up to
investigate the coupling mechanism between aerodynamics and aerostatics in a complex gas bearing
and to improve its performance, under incompressible conditions. The analytical model shows that
the load-carrying capacity function is composed of five items. Apparently, there is both pressure and
structure coupling between aerodynamics and aerostatics; identically, the surface feature function is
positive; and when the groove distribution coefficient is 0.30, it is approximately maximum.