Abstract:Through the experimental study of the static and dynamic characteristics of bearing,the bearing stability,the two-phase lubrication properties and stability under gas-liquid two-phase lubrication,the analysis methods of static and dynamic bearing characteristics were put forward based on the mixed modeling of theory and the experiments,which solves the unclosed problem of the equations obtained by the mixed homogeneous model in the theoretical analysis.An integrated stability experimental technology of the rotor system with hybrid bearing support at high speed and low temperature was proposed,which realizes the bearing stability research from diverse analysis.The test results of each sub item can be verified,which solves the isolated problem of the experimental results in the traditional stability testing technology.The important rule of bearing properties of two-phase lubrication are revealed that the vaporization increases the stiffness and improves the stability;but the effect is sensitive to parameters,which make the bearing performance be difficult to control.