Analysis on oil film force of hydrostatic bearing for multi-degree-of-freedom PM motor

摘要

The model and operating principle of a multi-degree-of-freedom permanent magnet synchronous motor is presented. Based on the Navier-Stokes equations in the stable operation, the properties of the velocity variation of the oil film are obtained. The pressure derived from oil film within the motor is analyzed. The pressure distribution of the oil film under different eccentricity and coordinate plane are introduced. These results indicate that the pressure of the oil film in different conditions shows different characteristics. It provides theoretical and data support for further optimization and experimental design of the motor's structure.