외부가압 공기윤활 저어널베어링의 공급구멍의 열수에 따른 부하특성에 관한 연구 = A Study on the load capacity characteristics of the externally pressurized air-lubricated journal bearing with various rows of supply holes

다국어 초록 (Multilingual Abstract)

A study is numerically carried out for the load capacity characteristics of the externally pressurized air-lubricated journal bearings with the supply holes of one row, two rows and three rows.
A numerical analysis is made using the finite element method and the incremental method.
The numerical analysis is performed for the pressure distributions and load capacities of the externally pressurized air-lubricated journal bearings according to the supply pressures, compressibility parameters and eccentricity ratios.
The result of this study are summarized as follows
1. The bearing with two rows of supply holes has the maximum load capacity.
2. The bearing with one row of supply holes has the maximum increment of the load capacity according to the compressibility parameter.
3. The results of load capacity are confirmed from the results of the pressre
distributions of the bearings.
4. The attitude angles are decreased under the low supply pressure, high
compressibility parameter and high eccentricity ratio.