tailieunhanh - Oil film pressure of journal bearing with oil suply hole located in the housing concerning cavitation

During the operating, the lubricated oil film pressure of hydrodynamic bearing is varied under the load apply and under the rotation speed. This pressure is one important characteristic when studying the lubrication problem for the bearing. An experimental device and the journal bearing are used to determine the pressure and the temperature of the lubricated oil film. The load is applied on the housing bearing. The journal bearing is subjected to different applied load at different velocities. Lubricant oil is circulatingly supplied via oil supply hole in the housing. The oil film pressure is calculated by numerical modelization with Reynolds condition taking into account cavitation and also experimental measured by the pressure sensor with the same applied load. The calculated pressure and measured pressure of the oil film are agreement with the applied load. The calculated oil film pressure is corresponded to the measured pressure; however, the two types of results have a difference in value. As the load increase, the difference between the numerical modelization results and experimental results of maximum pressure increase significantly. When the rotation speed increases, the maximum pressure decreases, the minimum pressure in calculating increases and minimum pressure in experimenting is slightly varied. | Oil film pressure of journal bearing with oil suply hole located in the housing concerning cavitation