Numerical Simulation Analysis of Spherical Spiral Groove Bearing Characteristic

Taking spherical spiral groove bearing as the research object, the calculation method of oil film flow field of spiral groove bearing was verified and the flow field was analyzed numerically by using the finite volume method. The relative deviations between the numerical results and the approximate analytical solutions are between 1% and 2%. The accuracy of the calculation method is guaranteed. In terms of static characteristics, the axial bearing capacity increases linearly with bearing speed and viscous coefficient, and the friction power increases linearly with viscous coefficient and rotational speed square. In terms of dynamic characteristics, the damping coefficient of spiral groove bearing is independent of rotational speed and only related to viscous coefficient of the medium, and the damping coefficient increases linearly with viscous coefficient.