Research on Externally Pressurized Journal Gas Bearing

Abstract

A theoretical research on externally pressurized journal gas-bearing has been reported by T. Sasaki and H. Mori. In their paper, the experimental data employed in comparison with the theoretical results were for the bearing with a single gas supply hole without restriction. It is common to use externally pressurized gas-bearings with multiple gas supply holes arranged circumferentially and axially. In this paper, a gas-bearing with multiple gas supply holes is designed theoretically and the pressure distribution, flow rate and optimum restriction are examined and compared with the complex potential theory. The experimental results show good agreement with the theoretical results.