ANALYSIS OF MECHANICAL SEAL BEHAVIOR DURING TRANSIENT OPERATION

A mathematical model that predicts the transient behavior of gas or li quid lubricated hydrostatic mechanical seals has been developed. The a nalysis includes an evaluation of the fluid, contact, and deformation mechanics of a mechanical seal subject to constant or varying rotation al speed and sealed pressure. Squeeze film effects are included. For g as seals, slip at the walls is also taken into account. Results includ e predictions of film thickness distributions, contact forces, leakage rates, pressure distributions, heat generation rates, thermal deforma tion, and mechanical deformation.