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Abstract

Mechanical seals must operate with a fluid film between their faces to avoid wear. This film must be thin enough to prevent excessive leakage. Consequently, mechanical seals work near the transition from mixed to hydrodynamic lubrication regimes where roughness is a key factor. When nominally flat parallel rough surfaces are considered, the usual stochastic approaches are not able to produce the hydrodynamic lift observed experimentally that leads to face separation. This article presents a numerical deterministic study of mechanical seals operating in mixed lubrication. The effect of surface roughness on surface separation, as well as on the friction coefficient, is analysed through a parametric study.

Keywords

Mechanical face seals mixed lubrication hydrodynamic lubrication surface roughness deterministic simulation

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References

Summers-Smith D. Laboratory investigation of the performance of a radial face seal. In: Proceedings of the 1st international conference on fluid sealing, Harlow, Essex, UK, 17–19 April 1961.

Flitney R and Nau B. Performance testing of mechanical seals. In: Proceedings of the 13th international conference on fluid sealing, Brugge, Belgium, 7–9 April 1992, pp.441–466.

Nau

. Mechanical seal face materials. Proc IMechE Part J: J Engineering Tribology 1997; 211: 165–183.

Lubbinge H. On the lubrication of mechanical face seals. PhD Thesis, University of Twente, the Netherlands, 1999.

Vezjak

Vizintin

. Experimental study on the relationship between lubrication regime and the performance of mechanical seals. Lubr Eng 2001; 57: 17–22.

Minet

Brunetière

Tournerie

. A deterministic mixed lubrication model for mechanical seals. J Tribol 2011; 133: 042203–042203.

Lebeck

. Parallel sliding load support in the mixed friction regime. Part 1 – the experimental data. J Tribol 1987; 109: 189–195.

Lebeck

. Parallel sliding load support in the mixed friction regime. Part 2 – evaluations of the mechanisms. J Tribol 1987; 109: 196–205.

Patir

Cheng

. An average flow model for determining effects of three-dimensional roughness on partial hydrodynamic lubrication. J Lubr Technol 1978; 100: 12–17.

10.

Patir

Cheng

. Application of average flow model to lubrication between rough sliding surfaces. J Lubr Technol 1979; 101: 220–230.

11.

Bayada

Martin

Vasquez

. An average flow model of the reynolds roughness including a mass-flow preserving cavitation model. J Tribol 2005; 127: 797–802.

12.

Lebeck

. Mixed lubrication in mechanical face seals with plain faces. Proc IMechE Part J: J Engineering Tribology 1999; 213: 163–175.

13.

Minet

Brunetière

Tournerie

. Analysis and modeling of the topography of mechanical seal faces. Tribol Trans 2010; 53: 1–17.

On the lubrication of mechanical seals with rough surfaces: A parametric study

Abstract

Keywords

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References