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TECHNICAL PAPERS

Hydrodynamic Analysis of the Flow in a Rotary Lip Seal Using Flow Factors

[+] Author and Article Information
Richard F. Salant, Ann H. Rocke

George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332-0405

J. Tribol 126(1), 156-161 (Jan 13, 2004) (6 pages) doi:10.1115/1.1609486 History: Received February 11, 2003; Revised June 17, 2003; Online January 13, 2004
Copyright © 2004 by ASME
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References

Salant,  R. F., 1999, “Theory of Lubrication of Elastomeric Rotary Shaft Seals,” IMechE J. Engineering Tribology, 213, pp. 189–201.
Salant,  R. F., and Flaherty,  A. L., 1994, “Elastohydrodynamic Analysis of Reverse Pumping in Rotary Lip Seals With Microundulations,” ASME J. Tribol., 116, pp. 56–62.
Salant,  R. F., and Flaherty,  A. L., 1995, “Elastohydrodynamic Analysis of Reverse Pumping in Rotary Lip Seals With Microasperities,” ASME J. Tribol., 117, pp. 53–59.
Salant,  R. F., 1996, “Elastohydrodynamic Model of the Rotary Lip Seal,” ASME J. Tribol., 118, pp. 292–296.
Shi,  F., and Salant,  R. F., 2000, “A Mixed Soft Elastohydrodynamic Lubrication Model With Interasperity Cavitation and Surface Shear Deformation,” ASME J. Tribol., 122, pp. 308–316.
Shi,  F., and Salant,  R. F., 2001, “Numerical Study of a Rotary Lip Seal With a Quasi-Random Sealing Surface,” ASME J. Tribol., 123, pp. 517–524.
Jagger,  E. T., 1957, “Rotary Shaft Seals: The Sealing Mechanism of Synthetic Rubber Seals Running at Atmospheric Pressure,” Proc. Inst. Mech. Eng., 171, pp. 597–616.
Horve, L. A., 1992, “Understanding the Sealing Mechanism of the Radial Lip Seal for Rotating Shafts,” Proc. 13th BHRG International Conference on Fluid Sealing, B. S. Nau, ed., Kluwer, Dordrecht, The Netherlands, pp. 5–19.
Kammüller, M., 1986, “Zur Abdichtwirkung von Radial-Wellendichtringen,” Dr.-Ing. thesis, Universität Stuttgart.
Müller, H. K., 1987, “Concepts of Sealing Mechanism of Rubber Lip Type Rotary Shaft Seals,” Proc. 11th BHRA International Conference on Fluid Sealing, B. S. Nau, ed., Elsevier, London, UK, pp. 698–709.
Stakenborg,  M. J. L., 1988, “On the Sealing Mechanism of Radial Lip Seals,” Tribol. Int., 21, pp. 335–340.
Patir,  N., and Cheng,  H. S., 1978, “An Average Flow Model for Determining Effects of Three-Dimensional Roughness on Partial Kydrodynamic Lubrication,” ASME J. Lubr. Technol., 100, pp. 12–17.
Patir,  N., and Cheng,  H. S., 1979, “Application of the Average Flow Model to Lubrication Between Rough Sliding Surfaces,” ASME J. Lubr. Technol., 101, pp. 220–229.
Harp,  S. R., and Salant,  R. F., 2001, “An Average Flow Model of Rough Surface Lubrication With Inter-Asperity Cavitation,” ASME J. Tribol., 123, pp. 134–143.
Lo,  S.-W., 1992, “On the Effects of Roughness Orientation—A Mapping and Double Scale Analysis of Flow Factors,” ASME J. Tribol., 114, pp. 747–754.
van Leeuwen, H., and Wolfert, M., 1996, “The Sealing and Lubrication Principles of Plain Radial Lip Seals: An Experimental Study of Local Tangential Deformations and Film Thickness,” Proc. 23rd Leeds-Lyon Symposium on Tribology, D. Dowson, ed., Elsevier, Amsterdam, The Netherlands, pp. 219–232.

Figures

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Schematic of sealing zone
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Schematic of lip deformation and distorted asperity distribution
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Pressure distribution, base case, yb=0.7
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Pressure distribution, yb=0.3
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Load support versus speed
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Pumping rate versus speed
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Load support versus average film thickness
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Pumping rate versus average film thickness
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Load support versus sealed pressure
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Pumping rate versus sealed pressure

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