Publications on Hydrodynamic Bearings July
18, 2024
MAJOR APPLICATION: Lubricated Hydrodynamic Bearings & Seals
for Rotating Machinery
Thrust Bearings Grooved Bearings (liquid)
Tilting Pad Bearings Floating Ring Seals
Hydrodynamic Journal Bearings: design and analysis
Thrust Collars for integrally geared compressors
Koosha, R., and San
Andrés, L., 2022 “A Model for Tilting Pad
Thrust Bearings Operating With Reduced Flow Rate – Do Benefits Outweigh
Risks?,” ASME J. Eng. Gas Turbines Power, Vol. 144(2): 021026, https://doi.org/10.1115/1.4052200
(ASME GT2021-60396)
Koosha, R.,
and San Andrés, L., 2020, “A Computational
Model for the Analysis of the Static Forced Performance of Self-Equalizing
Tilting Pad Thrust Bearings,” ASME J. Eng. Gas Turbines Power, Vol. 142(10):
101013, DOI: 10.1115/1.4048458 (ASME
GT2020-14728)
Koosha,
R., and San Andrés, L., 2019, ”Effect
of Pad and Liner Material Properties on the Static Load Performance of a
Tilting Pad Thrust Bearing ,” ASME J. Eng. Gas Turbines Power, Vol. 141(11):121007,
DOI: 10.1115/1.4045278 (ASME GT2019-90231)
Koosha, R., and
San Andrés, L., 2019, “On
the Static Load Performance of a Large Size, Heavily Loaded Spring Supported
Thrust Bearing,” 2019 STLE Annual Meeting & Exhibition, May 19-23,
Nashville, TN.
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Zirkelback, N., and L. San
Andrés, 1998, "Finite Element Analysis of Herringbone Grooved
Journal Bearings: A Parametric Study," ASME Journal of Tribology, Vol.
120, pp. 234-240, (ASME Paper 97-Trib-14). Pan, C., and L. San
Andrés, 2005, “The Narrow
Groove Bearing Analysis Revisited,” Paper WTC 2005-63803, III World
Tribology Conference, Washington D.C., September. |
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Tilting Pad Journal & Thrust
Bearings:
Experiments and Analysis |
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Bradley, R., Delgado, A., and San Andrés, L., 2024, “Dynamic
Characterization of a Low Drag power Loss Tilting Pad Journal Bearing,” ASME Paper No
GT2024-129170. Betti, A., Forte, P., San Andrés, Delgado, A., and Ciulli, E., 2024, “Comparison between Numerical and Experimental Static
Performance and Sensitivity Study on a Tilting Pad Journal Bearing in a Load
On Pad Configuration,” International Tribology Symposium ITS-IFToMM 2024, May
06-08, Salerno, Italy San Andrés, L., Ouyang, Z., and Qin, Y., 2024, “Effect of Reduced Oil Flow on
the Performance of a Load on Pad, Tilting Pad Journal Bearing: Flooded vs.
Evacuated Conditions,” ASME J. Eng. Gas Turbines Power, Vol. 146(4): 041004, https://doi.org/10.1115/1.4063686 (ASME Paper GT2023-103242). Alcantar, A., and
L. San Andrés, 2023, “Effect of Flow Rate on the
Performance of an Evacuated Tilting Pad Journal Bearing: Load on Pad vs.
Load-Between-Pad Configurations.” IFToMM 2023, Proceedings of
the 11th IFToMM International Conference on Rotor Dynamics,
Beijing, PRC (September 18-21),” pp. 78-92. San Andrés, L., and Alcantar, A.J., 2023, “Effect of Reduced
Oil Flow Rate on the Static and Dynamic Performance of a Tilting Pad Journal
Bearing Running in Both Flooded and Evacuated Conditions,” ASME J. Eng. Gas Turbines Power, Vol. 145(6): 061012. https://doi.org/10.1115/1.4056535 (ASME
GT2022-81839). San Andrés, L.,
Kaizar, H., Hardik, J., and Thorat, M., 2022, “Effect
of Pad Material, Copper vs. Steel, on the Performance of a Tilting Pad
Journal Bearing: Measurements and Predictions,” ASME J. Eng. Gas Turbines
Power, Vol. 144(3): 031001, https://doi.org/10.1115/1.4052430 (ASME GT2021-59401) San
Andrés, L., and Alcantar, A., 2021, “Effect
of Reduced Oil Flow Rate on the Static and Dynamic Performance of a Tilting
Pad Journal Bearing Running in both the Flooded and Evacuated conditions,”
Proc. of the 50th Turbomachinery &
Pump Symposia, Houston, TX (December). San Andrés, L.,
Toner, J., and Alcantar, A., 2021, “Measurements to Quantify the
Effect of a Reduced Flow Rate on the Performance of a Tilting Pad Journal
Bearing with Flooded Ends,” ASME J. Eng. Gas Turbines Power, Vol. 143(11):
111012, https://doi.org/10.1115/1.4052268
(ASME GT2021-58771) San Andrés, L.,
Hardik, J., Kaizar, H., and Thorat, M., 2020, “On the
Effect of Supplied Flow Rate to the Performance of a Tilting-Pad Journal
Bearing - Static Load and Dynamic Force Measurements,” ASME J. Eng. Gas
Turbines Power, Vol. 142(12): 121006,
https://doi.org/10.1115/1.4048798 (ASME GT2020-16215). San Andrés, L., Hardik, J.,
Kaizar, H., and Thorat, M., 2020, “Effect of
Flow Rate on the Performance of a Flooded-Ends Tilting Pad Journal Bearing –
Experiments and Predictions,” Proc. of
the 49th Turbomachinery & Pump Symposia, Houston, TX
(December). Arihara,
H., Baba, K., and San Andrés, L., 2019 “A
Thermoelastohydrodynamic Analysis for the Static Performance of High Speed -
Heavy Load Tilting-Pad Journal Bearing Operating in the Turbulent Flow Regime
and Comparisons to Test Data,” ASME J. Eng. Gas Turbines Power, Vol. 141(2),
02103, DOI: 10.1115/1.4041130 (ASME
GT20018-77143) Abdollahi, B., and
San Andrés, L, 2019, “Improved Estimation of Bearing
Pads’ Inlet Temperature: A Model for Lubricant Mixing at Oil Feed Ports and
Validation Against Test Data,” ASME J. Trib, Vol. 141(3), 031703, DOI:
10.1115/1.4041720 San Andrés, L, and
Abdollahi, B., 2018, “Advanced
Model Predictions vs. Test Data in Tilting Pad Bearings for Compressors,”
Chin. J. Turbomach., 60(3), pp. 32-44, and
Proc. of Third Chinese International Turbomachinery Conference, CTC, April
12-15, 2018, Chong Qing, China, Paper CITC 2018. San Andrés, L., and
Abdollahi, B., 2018, “On
the Performance of Tilting Pad Bearings: A Novel Model for Lubricant Mixing
at Oil Feed Ports With Improved Estimation of Pads’ Inlet Temperature and Its
Validation against Experimental Data,” II Asia Turbomachinery and Pump
Symposium, The Turbomachinery Laboratory, Texas A&M University, Mar.
13–15, Singapore, https://oaktrust.library.tamu.edu/handle/1969.1/172520 San Andrés, L., and
Li. Y., 2015, “Effect of Pad Flexibility on the
Forced Performance of Tilting Pad Journal Bearings: A Guide to Benchmarking a
Predictive Model”, ASME J. Eng. Gas Turbines Power. Vol. 137 (Dec),
pp. 122503 (15 pp.) DOI: 10.1115/1.4031344 [ASME GT2015-42776]. San Andrés, L.,
Tao, Y., and Li. Y., 2015, “Tilting Pad Bearings: On Bridging the Hot Gap Between Experimental Results
and Model Predictions,” ASME J.
Eng. Gas Turbines Power, 137, pp. 022505, DOI: 10.1115/1.4028386 [ASME GT2014-25566]. San Andrés, L., and Tao, Y., 2013, “The
Role of Pivot Stiffness on the Dynamics Force Coefficients of Tilting Pad
Journal Bearings,” ASME J. Eng. Gas
Turbines Power, vol. 135 (11), 112505 (1-11) [ASME
GT2013-94403] |
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Walton, N., and L.
San Andrés, 1997, "Measurement of Static Loading Versus Eccentricity in a
Flexure-Pivot Tilting Pad Journal Bearings," ASME Journal Of Tribology,
Vol. 119, 2, pp. 297-305, (ASME Paper 96-TRIB-23). |
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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). |
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Semanate J., and L. San
Andrés, 1994, "Thermal Analysis of Locked Multi - Ring Oil
Seals," Tribology International, Vol. 27, 3, pp. 197-206, 1994. |
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Semanate, J. and San Andrés,
L.,
1993, "Analysis of Multi-Land High Pressure Oil Seals," STLE
Tribology Transactions, Vol. 36, 4, pp. 661-669. |
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Semanate J., and San Andrés,
L., 1993, "A
Quasi-Static Method for the Calculation of Lock-up Conditions in Foating Ring Oil Seals," Proceedings of the IV
Congreso Latinoamericano de Turbomaquinaria,
Queretaro, Mexico, December, pp. 55-64. |
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Cable,
T., San Andrés, L., and Wygant, K., 2017, ‘”On
the Predicted Effect of Angular Misalignment on the Performance of Oil
Lubricated Thrust Collars in Integrally Geared Compressors,” Vol 139(4),
042503. DOI: 10.1115/1.403472 (ASME GT2016-5788) San
Andrés, T. Cable, K. Wygant, and A.
Morton, 2015, “On the Performance of Oil Lubricated
Thrust Collars in Integrally Geared Compressors,” ASME J. Eng. Gas Turbines
Power, 137, pp. 032502, DOI: 10.1115/1.4028663 (ASME
GT2014-25572) Hydrodynamic Journal
& Thrust Bearings: Design and Fundamental
Analysis |
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San
Andrés, L., 2012, “Extended Finite Element Analysis of
Journal Bearing Forced Performance to include Fluid Inertia Force
Coefficients,” Paper IMECE2012-87713,
ASME International Mechanical Engineering Congress & Exhibition, Nov.
9-15, Houston, TX San Andrés, L., 1989,
"Approximate Design of Statically Loaded Cylindrical Journal
Bearings," ASME Journal of Tribology, Vol. 111, pp. 391-393. |
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Szeri, A.Z. and San
Andrés, A., 1984, "Flow Between Eccentric Rotating Cylinders," ASME
Journal of Applied Mechanics, Vol. 106, pp. 869-878. |
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Other Papers in Vibrations and Rotordynamics |
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Vance, J.M., and L.
San Andrés, 1999, "Analysis of Actively Controlled Coulomb Damping for
Rotating Machinery," ASME Paper 99-GT-175. |
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Diaz, S., and L. San
Andrés, 1999, "Noise Related to
Mechanical Vibration and Repeated Impacts in a Computer Fan, an Example of a
Chaotic Dynamic System," Proceedings of the VI PACAM Conference, Rio
de Janeiro, Brazil, January, Applied Mechanics in the Americas, Volume 8,
Dynamics, pp. 1243-1246 |
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Merino,
A., J. Perea, F. Baquero, and L. San Andrés, 1998, "Vibración Subsíncrona en
Compresor Centrífugo con Cambio de Sellos," Memorias del VII Congreso
Latinoamericano de Turbomaquinaria, Veracruz, Mexico, November. |
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Baquero,
F., Santiango, O., Merino, A., and L. San Andrés, 1995, "Efecto Rotodinamico de la Sustitucion
de Sellos de Aceite por Sellos Secos en un Compresor Centrifugo,"
Memorias del V Congreso Latinoamericano de Turbomaquinaria,
Acapulco, Mexico, pp. 225-230, November. |
Reports to the Turbomachinery
Research Symposium
Tilting pad thrust bearings
Koosha, R., and San
Andrés, L., 2020,
“A MODEL FOR THE ANALYSIS OF FLOW STARVED TILTING PAD
THRUST BEARINGS,” TRC-B&C-02-20
Koosha,
R., and San Andrés, L., 2019,
“A
Computational Model for Self-Equalizing Tilting Pad Thrust Bearings,” TRC-B&C-01-19
Koosha,
R., and San Andrés, L.,2018, ”THERMO-
ELASTO-HYDRODYNAMIC (TEHD) COMPUTATIONAL ANALYSIS OF TILTING PAD THRUST
BEARINGS: ANALYTICAL AND FE PAD STRUCTURE MODELS,” TRC-B&C-01-18
San
Andrés, L., and Koosha, R., 2017, “Thermo-Hydrodynamic (THD) Computational
Analysis of Tilting Pad Thrust Bearings,” TRC-B&C-05-17
Modeling of
tilting pad journal bearings
San Andrés, L., and Abdollahi, B., 2016, “Thermal Effects on Pad Deformations and Tilting-Pad Journal Bearing Performance,” TRC-B&C-04-16.
Li, Y., and San Andrés, L., 2015, “A
Computational Model for Tilting Pad Journal Bearings with Pad Flexibility,” TRC-B&C-01-15
Li, Y., and San Andrés, L., 2014, “A FE Model for Static Load in Tilting Pad Journal
Bearings with Pad Flexibility,”
TRC-B&C-02-14
San Andrés, L., and Tao, Y., 2013,
“A Novel Computational Model for Tilting Pad Journal Bearings with Soft Pivot
Stiffnesses,“ TRC-B&C-01-13
Test rig for
hydrodynamic/hydrostatic thrust bearings
San Andrés, L., Wilkinson, S., and Haq, S., 2017, “Measurement
of a Rotor (Dynamic) Axial Response in a Test Rig
with Water Lubricated Hydrostatic Thrust Bearings,” draft) TRC-B&C-04-17
San Andrés, L., Rohmer, M., Wilkinson, S., and Jani, H., 2016, “Measurement of Static Load Performance of a Water
Lubricated Thrust Bearing,” TRC-B&C-03-16
Rohmer, M., Wilkinson, S., and San Andrés, L., 2015, “Revamping and
Preliminary Operation of a Thrust Bearing Test Rig,” TRC-B&C-02-15
Rohmer, M. and San
Andrés, L., 2014,
“A Destructive Failure Incident and Revamping of the Thrust Bearing Test Rig,” TRC-B&C-03-14