대형 틸팅패드 저어널베어링의 성능에 미치는 온도상승 및 난류의 효과에 관한 연구

A Study on the Effects of Temperature Rise and Turbulence on the Performance of Large Tilting Pad Journal Bearings

The thermohydrodynamic performance of large tilting pad journal bearings is analyzed, taking into account the three dimensional variation of lubricant viscosity. The eddy viscosity model based on wall formula is applied. The effects of temperature rise and turbulence on the bearing performance are studied in comparision with the isothermal or the laminar analysis. It is shown that these effects have significant influence on temperature distribution, load capacity and power loss of the bearing.