ABSTRACT
Based on a fluid hydrodynamic lubrication theory model, a geometric analysis model of fluid dynamic pressure mechanical seals with circular macro-pores textured is established in this paper. The influence of the geometric parameters and operating parameters on the leakage rate, liquid film stiffness and opening force is analyzed by using the numerical simulation and the influence rules of the dynamic and static pressure effect on the increment ratio of the sealing performance parameters is studied. The sealing performance self-adaptive mechanism under variable working conditions is discussed and then the design theories of end faces seals are perfected and added.
