Abstract:In order to obtain the distribution of the optimum supporting point position

this paper sets up a mathematical model of fluid lubrication of thrust bearing based on the lubrication theory

analyzing the variation relationship between the lubrication characteristics and the point positions by using the numerical analysis method

obtaining the optimum supporting point position and its distribution law under the different working conditions and bearing pad dimension. The calculation results show that: The reasonable supporting point position can improve the lubrication characteristics of thrust bearing obviously. The optimum supporting point position is close to the outside of bearing pad in radial direction

and its radial eccentricity decreases with the increasing of specific pressure

rotating speed and aspect ratio

increasing with the bearing pad deformation increasing. The optimum supporting point position is close to the oil outlet side in circumferential direction

and its circumferential eccentricity increases with the increasing of rotating speed and aspect ratio

decreasing with the increasing of bearing pad deformation and specific pressure.