Publications on Hydrostatic Bearings

 

MAJOR APPLICATION:  Process fluid lubrication, cryogenic liquid turbopumps

High Speed / High Pressure, Turbulent Flow Hydrostatic / Hydrodynamics Bearings

Sponsors: NASA MSFC (1998-2002), NASA Glenn RC (1993-1996), Pratt & Whitney (1992-93), Rockedyne (1990-1992), Northrop Grumman (2005-2008)

 

MAJOR TOPICS: Select below

Thrust Hybrid Bearings

Radial Hybrid Bearings – including angled injection

Student Theses

Technical reports to NASA

 

THRUST BEARINGS

San Andrés, L., 2002, “Force and Moment Coefficients for Misaligned Hybrid Thrust Bearings,” ASME Journal of Tribology, Vol. 124 (1), pp. 212-219 (ASME Paper 2001-TRIB-119).

San Andrés, L., 2000, “Bulk-Flow Analysis of Hybrid Thrust Bearings for Process Fluid Applications,” ASME Journal of Tribology, Vol. 122, 1, pp. 170-180(ASME Paper 99-TRIB-20).

 

RADIAL BEARINGS

San Andrés, L., 2007, “Start- up Response of Fluid Film Lubricated Cryogenic Turbo- Pumps,” 43rd AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit, Cincinnati, OH, July 9-11, Paper AIAA-2007-5093.

 

Soulas, T., and L. San Andrés, 2003, “Performance of Damaged Hydrostatic Bearings: Predictions vs. Experiments,” ASME Journal of Tribology, Vol. 125, 2, pp. 451-457 (ASME Paper 2002-TRIB-17).

 

San Andrés, L., T. Soulas, and P. Fayolle, 2007, “A Bulk Flow Model of Angled Injection Lomakin Bearing” ASME Journal of Engineering for Gas Turbines and Power, 129, pp. 195-204. (ASME Paper 2002-GT-30287).

 

San Andrés, L., 2001, “A Hybrid Bearing with Improved Rotordynamic Stability,” 1st International Conference in Rotordynamics of Machinery, ISCORMA1, Paper 2006, August 2001 (CD only).

San Andrés, L., and D. Childs, 1997, "Angled Injection - Hydrostatic Bearings, Analysis and Comparison to Test Results," ASME Journal of Tribology, Vol. 119, 1, pp. 179-187, (ASME Paper 96-TRIB-10).

San Andrés, L., 1997, "Transient Response of Externally Pressurized Fluid Film Bearings," STLE Tribology Transactions, Vol. 40, 1, pp. 147-155, (STLE Paper 96-TC-3A-1).

San Andrés, L., Yang, Z., and D. Childs, 1996, "Thermal Effects in Liquid Oxygen Hybrid Bearings," STLE Tribology Transactions, Vol. 39, 3, pp. 654-662, (STLE Paper 95-TC-3A-1).

San Andrés,L., 1996, "Turbulent Flow, Flexure-Pivot Hybrid Bearings for Cryogenic Applications," ASME Journal of Tribology, Vol. 118, 1, pp. 190-200, (ASME Paper 95-TRIB-14).

San Andrés, L., and D. Childs, 1996, "Angled Injection, Turbulent Flow Hybrid Bearings, Comparison to Test Results," Proceedings of the 8th Workshop on Instability Problems in Rotating Machinery, Texas A&M University, May

San Andrés, L., Yang, Z., and D. Childs, 1995, "Turbulent Flow Hydrostatic Bearings: Analysis and Experimental Results," International Journal of Mechanical Sciences, Vol. 37, 8, pp. 815-829.

Yang, Z., L. San Andrés and D. Childs, 1995, "Thermohydrodynamic Analysis of Process Liquid Hydrostatic Bearings in Turbulent Regime, Part I: The Model and Perturbation Analysis," ASME Journal of Applied Mechanics, Vol. 62, 3, pp. 674-679

Yang, Z., L. San Andrés and D. Childs, 1995, "Thermohydrodynamic Analysis of Process Liquid Hydrostatic Bearings in Turbulent Regime, Part II: Numerical Solution and Results," ASME Journal of Applied Mechanics, Vol. 62, 3, pp. 680-684.

San Andrés, L., 1995, "Thermohydrodynamic Analysis of Fluid Film Bearings for Cryogenic Applications," AIAA Journal of Propulsion and Power, Vol. 11, 5, pp. 964-972.

Hill, D., E. Baskharone, and L. San Andrés, 1995, "Inertia Effects in a Hybrid Bearing with a 45 degree Entrance Region," ASME Journal of Tribology, Vol. 117, 3, pp. 498-505.

San Andrés, L., 1995, "Turbulent Flow Foil Bearings for Cryogenic Applications," ASME Paper 94-TRIB-33, ASME Journal of Tribology, Vol. 117, 1, pp. 185-195.

Franchek, N., D. Childs, and L. San Andrés, 1995, "Theoretical and Experimental Comparisons for Rotordynamic Coefficients of a High-Speed, High-Pressure, Orifice-Compensated Hybrid Bearings," ASME Paper 94-TRIB-43, ASME Journal of Tribology, Vol. 117, 2, pp. 285-290.

San Andrés, L., "Dynamic Force Response of Spherical Hydrostatic Journal Bearings for Cryogenic Applications", STLE Tribology Transactions, Vol. 37, 3, pp. 463-470, 1994.

Yang, Z., L. San Andrés, and D. Childs, 1994, "Process Liquid Turbulent Flow Hydrostatic Bearings: Analysis and Tests for Rotordynamic Coefficients Center ," Proceedings of the 4th International IFToMM Rotordynamics Conference, Chicago, September, pp. 233-242.

San Andrés, L., and Yang, Z., 1994, "Thermohydrodynamic Analysis of Fluid Film Bearings for Cryogenic Applications," Proceedings of the 6th NASA Conference on Advanced Earth-to-Orbit Propulsion Technology, Huntsville, Alabama, May, NASA CP 3282, Vol. II, pp. 421-430.

San Andrés, L., 1994, "Analysis of Arbitrary Recess Geometry Hydrostatic Bearings," Proc. of the 6th NASA Conference on Advanced Earth-to-Orbit Propulsion Technology, Huntsville, Alabama, May, NASA CP 3282, Vol. II, pp. 431-441.

San Andrés, L., 1993, "Operation of Turbulent Hydrostatic Bearing under Misaligned Journal Conditions," ASME Journal of Tribology, Vol. 115, 3, pp. 355-363.

Kurtin, K., Childs, D., San Andrés, L. and Hale, K., 1993, "Experimental versus Theoretical Characteristics of a High Speed Hybrid (combination Hydrostatic and Hydrodynamic) Bearing," ASME Journal of Tribology, Vol. 115, 1, pp. 160-169.

San Andrés, L., 1992, "Analysis of Turbulent Hydrostatic Bearings with a Barotropic Fluid," ASME Journal of Tribology, Vol. 114, 4,pp. 755-765.

San Andrés, L., 1992, "Analysis of Hydrostatic Journal Bearings with End Seals," ASME Journal of Tribology, Vol. 114, 4, pp. 802-811.

San Andrés, L., and Velthuis, J.M., 1992, "Laminar Flow in a Recess of a Hydrostatic Bearing," STLE Tribology Transactions, Vol. 35, 4, pp. 738-744.

San Andrés, L. and Scharrer, J., 1992, "The axisymmetrically Stepped, Orifice Compensated Hydrostatic Bearing", AIAA Paper 92-3405, 28th AIAA/SAE/ASME/ASEE Joint Propulsion Conference, Nashville, Tennessee, July 6-8.

San Andrés, L., Yang, Z. and Childs, D., 1992, "Thermohydrodynamic Analysis of Cryogenic Liquid Annular Seals," 5th NASA Conference on Advanced Earth-to-Orbit Propulsion Technology, Huntsville, Alabama, May, NASA CP 3174, Vol. I, pp. 468-487.

San Andrés, L., 1991, "Effect of Eccentricity on the Force Response of a Hybrid Bearing," STLE Tribology Transactions, Vol. 34, 4, pp. 537- 544.

San Andrés, L., "Fluid Compressibility Effects on the Dynamic Response of Hydrostatic Journal Bearings," WEAR, Vol. 146, pp. 269-283, 1991.

San Andrés, L., "Turbulent Hybrid Bearings with Fluid Inertia Effects", ASME Journal of Tribology, Vol. 112, pp. 699-707, 1990.

San Andrés, L., "Approximate Analysis of Turbulent Hybrid Bearings. Static and Dynamic Performance for Centered Operation," ASME Journal of Tribology, Vol. 112, pp. 692-698, 1990.

San Andrés, L., 1990, "Improved Analysis of High Speed, Turbulent Hybrid Bearings," 4th NASA Conference on Advanced Earth-to-Orbit Propulsion Technology, Huntsville, Alabama, May, NASA CP 3092, Vol. II, pp. 414-431.

Ph.D. Theses

Grigory Arauz, "Analysis of Two-Phase Flow in Damper Seals for Cryogenic Turbomachinery," December 1996.

Joe Yang, "Thermohydrodynamic Analysis of Product Lubricated Hydrostatic Bearings in Turbulent Flow Regime," completed December 1992.

Technical Research Progress Reports to NASA and Contractors

San Andrés, L., 2005-07, Proprietary Research Progress Reports to Northrop Grumman, USAF USET program.

San Andrés, L., “Force and Moment Coefficients for Misaligned Hybrid Thrust Bearings,” Final Progress Report to NASA Marshall Space Flight Center, December 2000.

San Andrés, L., 1998, "Bulk Flow Analysis of Hybrid Thrust Bearings for Advanced Cryogenic Turbopumps", FINAL Technical Report to NASA Marshall Space Flight Center, NASA Grant NAG8-1395, October.

San Andrés, L., 1996, "Thermohydrodynamic Analysis of Cryogenic Liquid Turbulent Flow Fluid Film Bearings", FINAL Technical Report to NASA Lewis Research Center, NASA Grant NAG3-1434, December.

San Andrés, L., 1995, "Angled Injection - Hybrid Fluid Film Bearings for Cryogenic Applications, Phase III" Technical Report to NASA Lewis Research Center, NASA Grant NAG3-1434, December.

San Andrés, L., 1994, "Thermohydrodynamic Analysis of Cryogenic Liquid, Turbulent Flow Fluid Film Bearings, Phase II" Technical Report to NASA Lewis Research, NASA Grant NAG3-1434, December.

San Andrés, L., 1993, "Thermohydrodynamic Analysis of Cryogenic Liquid, Turbulent Flow Fluid Film Bearings," Technical Report to NASA Lewis Research Center, NASA Grant NAG3-1434, December.

San Andrés, L., and Z. Yang, 1992, "Thermohydrodynamic Analysis of Turbulent Flow Hydrostatic Bearings," Technical Report to Pratt and Whitney, December.

San Andrés, L., 1992, "Analysis of Turbulent Bulk Flow Hydrostatic Pad Bearings with a Barotropic Liquid," TAMU Research Foundation, Technical Report to Rockwell International, October.

San Andrés, L., 1990, "Analysis of Hydrostatic Bearings for Cryogenic Applications - Variable Properties Solution," TAMU Research Foundation, Technical Report to Rockwell International, October.

San Andrés, L., 1989, "Analysis of Turbulent Hybrid Bearings with Fluid Inertia Effects," TAMU Research Foundation, Technical Report to Rockwell International, October.