Numerical Simulation of Integrated Deformation of Heavy Hydrostatic Thrust Bearing and Experimental Research

摘要

Aiming at the problem of deformation of heavy hydrostatic thrust bearing, finite element method (FEM) is used to conduct its numerical simulation, and the law of the influence of temperature and load on bearing deformation is revealed. Experiment of oil film thickness in different velocity is also made. The results demonstrate that: the free thermal deformation of workbench and base is significant. The thermal deformation can be counteracted by the pressure deformation partly in radial, which could improve deformation situation of workbench, the edge of deformed workbench becomes upper convex, the base becomes lower convex, and their whole deformation is a bugle-like from inside to outside., There is a nice coincidence between numerical simulation and experiment. Development cost can be economized significantly and the performance forecast of bearing can be realized. Furthermore, the theoretical basis and optimization direction for bearing design and calculation of its lubrication performance can be provided from this.