Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : September 03, 2023 - September 06, 2023
In this study, we measured the axial surface pressure distribution of an axial type of slot restrictor Aerostatic bearing. Conventional slot restrictor aerostatic bearings, in which the air supply orifice is arranged in the center of the bearing on the circumference, have a problem of contact between the shaft and the bearing end when an eccentric load is applied to the shaft. However, there has been no detailed investigation of the shaft surface pressure distribution in axial-type slot drawing hydrostatic gas bearings. Therefore, measurements were taken from both CAE analysis and experimental approaches. Comparing the experimental and CAE analysis results, it was found that the accuracy of the CAE analysis was sufficient. In the shaft eccentricity condition, the direction of the shaft eccentricity was found to be high pressure and the opposite side was found to be low pressure. We have concluded that the load capacity was generated by the pressure difference that occurs within the bearing.
