Research on Externally Pressurized Porous Thrust Gas Bearing with Supply Hole

Abstract

In this research, the characteristics of an externally pressurized porous circular thrust bearing with a supply hole on its center is investigated. In the analysis, the hypothesis of equivalent film thickness is applied to the flow in the porous media. Dynamic performances are obtained theoretically for various controllable parameters. The theoretical results show a comparatively good conformity with the experimental results. It is proved that, by providing a supply hole, desirable perfornamces can be obtained over wide operating conditions. The results attained in this research may allow the designers to get optimal design conditions.