Abstract
Porous aerostatic bearing are known to provide high stiffness and load capacity. It has been used to actually precision machine tools and precision measuring instruments However, it doesn't correspond to clearance internal pressure distribution and exhaust gas flow rate of measure result and FFT calculation result. The causes are thought to be due to various factors arising from features of porous material. In this paper, by performing experiments and theoretical analysis of the gap flow with a porous, it will approach the causes of disagreement of clearance internal pressure distribution and exhaust gas flow rate by experiment and numerical analysis.
