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TECHNICAL PAPERS

A Simultaneous Numerical Solution for the Lubrication and Dynamic Stability of Noncontacting Gas Face Seals

[+] Author and Article Information
Itzhak Green

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

Roger M. Barnsby

Pratt and Whitney, United Technologies Corporation, East Hartford, CT 06108

J. Tribol 123(2), 388-394 (Jun 08, 2000) (7 pages) doi:10.1115/1.1308020 History: Received February 07, 2000; Revised June 08, 2000
Copyright © 2001 by ASME
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References

Etsion,  I., 1982, “A Review of Mechanical Face Seal Dynamic,” Shock Vibr. Dig., 14, No. 3, pp. 9–14.
Etsion,  I., 1985, “Mechanical Face Seal Dynamics Update,” Shock Vibr. Dig., 17, No. 4, pp. 11–16.
Etsion,  I., 1991, “Mechanical Face Seal Dynamics 1985–1989,” Shock Vibr. Dig., 23, No. 4, pp. 3–7.
Green,  I., and Etsion,  I., 1983, “Fluid Film Dynamic Coefficients in Mechanical Face Seals,” ASME J. Lubr. Technol., 105, No. 2, pp. 297–302.
Green,  I., and Etsion,  I., 1985, “Stability Threshold and Steady-State Response of Noncontacing Coned-Face Seals,” ASLE Trans., 28, No. 4, pp. 449–460.
Cha,  E., and Bogy,  D. B., 1995, “A Numerical Scheme for Static and Dynamic Simulation of Subambient Pressure Shaped Rail Sliders,” ASME J. Tribol., 117, pp. 36–46.
Leefe, S., 1994, “Modeling of Plain Face Gas Seal Dynamics,” 14th International Conference on Fluid Sealing, BHR Group Conference Series, No. 9, pp. 397–424.
Shapiro,  W., and Colsher,  R., 1974, “Steady State and Dynamic Analysis of a Jet-Engine, Gas Lubricated Shaft Seal,” ASLE Trans., 17, No. 3, pp. 190–200.
Castelli,  V., and Pirvics,  J., 1968, “Review of Numerical Methods in Gas Bearing Film Analysis,” ASME J. Lubr. Technol., 90, pp. 777–792.
Green,  I., and Etsion,  I., 1986, “Nonlinear Dynamic Analysis of Noncontacting Coned-Face Mechanical seals,” ASLE Trans., 29, No. 3, 383–393.
Miller, B., and Green, I., 1999, “Numerical Formulation for the Dynamic Analysis of Spiral-Grooved Gas Face Seals,” presented at the STLE/ASME Tribology Conference, Seattle, WA, October 1–4, 2000.
Shampine, L. F., 1994, Numerical Solution of Ordinary Differential Equations, Chapman and Hall, New York.
Green,  I., and Etsion,  I., 1986, “Pressure and Squeeze Effects on the Dynamic Characteristics of Elastomer O-Rings Under Small Reciprocating Motion,” ASME J. Tribol., 108, No. 3, pp. 439–445.
Lee,  A. S., and Green,  I., 1995, “Physical Modeling and Data Analysis of the Dynamic Response of a Flexibly Mounted Rotor Mechanical Seal,” ASME J. Tribol., 117, pp. 130–135.
Gross, W. A., 1980, Fluid Film Lubrication, John Wiley & Sons, New York.
Green,  I., 1987, “The Rotor Dynamic Coefficients of Coned-Face Mechanical Seals with Inward or Outward Flow,” ASME J. Tribol., 109, No. 1, pp. 129–135.

Figures

Grahic Jump Location
Schematic of noncontacting mechanical face seal
Grahic Jump Location
Schematic of coning in inward and outward flow regimes
Grahic Jump Location
Transient dynamic response at various shaft speeds
Grahic Jump Location
Transient response for an outside pressurized seal (inward flow) at various positive coning angles
Grahic Jump Location
Transient response for an inside pressurized seal (outward flow) at various negative coning angles

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