Liquid Film Performance Analysis of the Mechanical Seals with a Laser-Textured Micro-Pore Face

Abstract:

A theoretical model has been developed for the mechanical seals with a laser-textured porous seal face. By means of variable dimensionless steps, parametric analysis has been performed to obtain dimensionless liquid film pressure by the finite difference method. Liquid film pressure profiles over the pore column have be achieved by the computer program MATLAB. It is found from calculating results that average liquid film pressure increases with increase of the rotational speed, liquid viscosity and reduction of liquid film thickness. Hydrodynamic effect produced by micro-pores decreases with increase of fluid pressure. In addition, the effect of the pore area density and depth over diameter ratio on the liquid film pressure is very significant. Optimum values of these parameters can maximize the average liquid film pressure.

• Periodical: Advanced Materials Research (Volumes 139-141)
• Pages: 418-421
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.139-141.418
• Online since: October 2010
• Authors: Xin Qi Yu, Qing Gang Liu, Hui Qin Gao, Jia Hui Yu
• Keywords: Finite Difference Method (FDM), Laser, Liquid Film Pressure, Mechanical Seal

References

[1] X.Q. Yu, M.H. Liu and ZH.H. Wang: Materials Science Forum Vol. 532 (9)(2006), p.463.

[2] I. Etsion, G. Halperin and Y. Greenberg: Proc. 15th International Conference on Fluid Seal (Maastricht, Netherland, March 5-9, 1997).

[3] I. Etsion, Y. Kligerman and G. Halperin: Tribology Transactions Vol. 42(3) (1999), p.511.

[4] X.Q. Yu, P.Y. Peng and H.Q. Gao: Advanced Materials Research Vols. 97-101(2010), p.4505.

[5] P.R. Yang: Numerical Analysis for Fluid Lubrication (Defence Industry Press, China 1998) 0 5 10 15 0 0. 1 0. 2 0. 3 0. 4 0. 5 0. 6 Sp=0. 35 Sp=0. 5 Sp=0. 65 Fig. 10 Effect of micro-pore aspect ratio on dimensionless average liquid film pressure Dimensionless average liquid film pressure Pav Micro-pore aspect ratio ε.