PSP Visualization of Pressure Distribution of Externally Pressurized Gas Thrust Bearings (Experimental Validation of Variation of Pressure Distribution by Supply Pressure)

摘要

This paper carried out visualization of pressure distribution by using pressure sensitive paint (PSP) for an externally pressurized gas thrust bearing surface. PtTFPP was applied to the bearing surfaces as PSP. The PSP luminescence characteristics depending on the temperature and pressure were calibrated before the tests. Pressure distribution was captured as a 50 images using a 12 bit CCD camera. The experimental results were compared with numerical analysis. Experimental values well agreed with analyzed values. The effectiveness of this approach has been demonstrated.