Effect of disturbances on the dynamic performance of a wavy-tilt-dam mechanical seal

A three-dimensional theoretical model is developed to study the effect of disturbances on the dynamic performance of a wavy-tilt-dam (WTD) mechanical seal. Parametric study on the WTD seal faces is presented. The results show that the wave amplitude is the significant parameter that affects the hydrodynamic effect and the floating ringʹs tracking property. When cavitation takes place in the film, the tilt of the WTD floating ring will increase the hydrodynamic force. The optimal parameters for the WTD seal working more stable are α=1, k around 10 and wd=0.15B–0.20B.