Abstract
A finite groove approach (FGA), based on the finite element method (FEM), is used for analyzing the static and dynamic behavior of spiral-grooved aerodynamic journal bearings at different eccentricities, number of grooves, and compressibility numbers. The results of the FGA are compared with the narrow-groove theory (NGT) solutions. For the rotating-groove case, a novel time-periodic solution method is presented for computing the quasi-steady-state and dynamic pressure profiles. The new method offers the advantage of avoiding time-consuming transient integration, while resolving a finite number of grooves. The static and dynamic solutions of the NGT and FGA approach are compared, and they show good agreement, even at large eccentricities () and high compressibility numbers (Λ = 40). Stability maps at different eccentricities are presented. At certain operation points, a stability decrease toward larger eccentricities is observed. The largest stability deviations of the NGT from the FGA solutions occur at large groove angle, low number of grooves, and large compressibility numbers.
Issue Section:
Hydrodynamic Lubrication
References
1.
Schiffmann
, J.
, 2015
, “Integrated Design and Multi-Objective Optimization of a Single Stage Heat-Pump Turbocompressor
,” ASME J. Turbomach.
, 137
(7
), p. 071002
. 10.1115/1.40291232.
Rosset
, K.
, Mounier
, V.
, Guenat
, E.
, and Schiffmann
, J.
, 2018
, “Multi-Objective Optimization of Turbo-ORC Systems for Waste Heat Recovery on Passenger Car Engines
,” Energy
, 159
, pp. 751
–765
. 10.1016/j.energy.2018.06.1933.
Zhao
, D.
, Blunier
, B.
, Gao
, F.
, Dou
, M.
, and Miraoui
, A.
, 2014
, “Control of An Ultrahigh-Speed Centrifugal Compressor for the Air Management of Fuel Cell Systems
,” IEEE Trans. Ind. Appl.
, 50
(13
), pp. 2225
–2234
. 10.1109/TIA.2013.22828384.
Whipple
, R.
, 1958
, The inclined groove bearing
. Technical Report
. United Kingdom Atomic Energy Authority. Research Group. Atomic Energy Research Establishment
. Harwell, Berks, England
.5.
Hirs
, G. G.
, 1965
, “The Load Capacity and Stability Characteristics of Hydrodynamic Grooved Journal Bearings
,” ASLE Trans.
, 8
(3
), pp. 296
–305
. 10.1080/056981965089721026.
Malanoski
, S. B.
, and Pan
, C. H. T.
, 1965
, “The Static and Dynamic Characteristics of the Spiral-Grooved Thrust Bearing
,” ASME J. Basic Eng.
, 87
(3
), pp. 547
–555
. 10.1115/1.36506037.
Vohr
, J.
, and Pan
, C.
, 1964
, On the Spiral Grooved, Self-Acting, Gas Bearing
, Mechanical Technology Inc
, Latham, NY
, No. 63TR52
.8.
Vohr
, J. H.
, and Chow
, C. Y.
, 1965
, “Characteristics of Herringbone-Grooved, Gas-Lubricated Journal Bearings
,” ASME J. Basic Eng.
, 87
(3
), pp. 568
–576
. 10.1115/1.36506079.
Fleming
, D. P.
, and Hamrock
, B. J.
, 1974
, “Optimization of Self-Acting Herringbone Journal Bearing for Maximum Stability
.” NASA Technical Memorandum
.10.
Hamrock
, B.
, and Fleming
, D.
, 1971
, “Optimization of Self-Acting Herringbone Journal Bearings for Maximum Radial Load Capacity
.” NASA Technical Note
.11.
Castelli
, V.
, and Vohr
, J.
, 1967
, Performance Characteristics of Herringbone-Grooved Journal Bearings Operating At High Eccentricity Ratios and With Misalignment
, Mechanical Technology Inc
, Latham, NY
.12.
Malanoski
, S. B.
, 1965
, “Experiments on An Ultra-Stable Gas Journal Bearing
,” Tribology
, 1
(1
), p. 62
. http://dx.doi.org/10.1016/s0041-2678(68)80736-513.
Muijderman
, E. A.
, 1965
, “Spiral Groove Bearings
,” Ind. Lubr. Tribol.
, 17
(1
), pp. 12
–17
. 10.1108/eb05276914.
Bonneau
, D.
, Huitric
, J.
, and Tournerie
, B.
, 1993
, “Finite Element Analysis of Grooved Gas Thrust Bearings and Grooved Gas Face Seals
,” ASME J. Tribol.
, 115
(3
), pp. 348
–354
. 10.1115/1.292164215.
Heinrich
, J. C.
, and Zienkiewicz
, O. C.
, 1977
, “Quadratic Finite Element Schemes for Two-Dimensional Convective-Transport Problems
,” Numer. Methods Eng.
, 11
(12
), pp. 1831
–1844
. 10.1002/nme.162011120716.
Hamrock
, B. J.
, Schmid
, S. R.
, and Jacobson
, B. O.
, 2004
, Fundamentals of Fluid Film Lubrication
, CRC Press
, New York
.17.
Schiffmann
, J.
, 2013
, “Enhanced Groove Geometry for Herringbone Grooved Journal Bearings
,” ASME J. Eng. Gas Turbines Power
, 135
(10
), p. 102501
. 10.1115/1.402503518.
Guenat
, E.
, and Schiffmann
, J.
, 2018
, “Effects of Humid Air on Aerodynamic Journal Bearings
,” Tribol. Int.
, 127
, pp. 333
–340
. 10.1016/j.triboint.2018.06.00219.
Lund
, J. W.
, 1968
, “Calculation of Stiffness and Damping Properties of Gas Bearings
,” ASME J. Lubr. Tech.
, 90
(4
), pp. 793
–803
. 10.1115/1.360172320.
Guenat
, E.
, and Schiffmann
, J.
, 2018
, “Real-Gas Effects on Aerodynamic Bearings
,” Tribol. Int.
, 120
, pp. 358
–368
. 10.1016/j.triboint.2018.01.00821.
Miller
, B. A.
, and Green
, I.
, 2001
, “Numerical Formulation for the Dynamic Analysis of Spiral-Grooved Gas Face Seals
,” ASME J. Tribol.
, 123
(2
), pp. 395
–403
. 10.1115/1.130801522.
Bonneau
, D.
, and Absi
, J.
, 1994
, “Analysis of Aerodynamic Journal Bearings With Small Number of Herringbone Grooves by Finite Element Method
,” ASME J. Tribol.
, 116
(4
), pp. 698
–704
. 10.1115/1.292732023.
Salari
, K.
, and Knupp
, P.
, 2000
, “Code Verification by the Method of Manufactured Solutions
.” Technical Report
. Office of Scientific and Technical Information (OSTI)
.24.
Constantinescu
, V. N.
, and Castelli
, V.
, 2011
, “On the Local Compressibility Effect in Spiral-Groove Bearings
,” ASME J. Lubr. Tech.
, 91
(1
), pp. 79
–86
. 10.1115/1.355490225.
Cunningham
, R. E.
, Fleming
, D. P.
, and Anderson
, W. J.
, 1969
, “Experimental Stability Studies of the Herringbone-Grooved Gas-Lubricated Journal Bearing
,” ASME J. Lubr. Tech.
, 91
(1
), pp. 52
–57
. 10.1115/1.355489626.
Guenat
, E.
, and Schiffmann
, J.
, 2019
, “Multi-Objective Optimization of Grooved Gas Journal Bearings for Robustness in Manufacturing Tolerances
,” Tribol. Trans.
, 62
(6
), pp. 1041
–1050
. 10.1080/10402004.2019.1642547Copyright © 2020 by ASME
You do not currently have access to this content.
