This paper presents a theoretical study of the performance characteristics of a constant flow valve compensated multirecess hydrostatic journal bearings operating with micropolar lubricant. The finite element method and iterative procedure have been used to solve the modified Reynolds equation governing the micropolar lubricant flow in the bearing. The performance characteristics are presented for a wide range of nondimensional load, lubricant flow, and micropolar parameters. It has been observed that the micropolar parameters significantly influence the performance characteristics of the bearing.
1.
Khader
, M. S.
, and Vachon
, R. I.
, 1973, “Theoretical Effects of Solid Particles in Hydrostatic Bearing Lubricant
,” ASME J. Lubr. Technol.
0022-2305, 95
, pp. 104
–106
.2.
Scott
, W.
, and Suntiwattana
, P.
, 1995, “Effect of Oil Additives on the Performance of a Wet Friction Clutch Material
,” Wear
, 183
, pp. 850
–855
. 0043-16483.
Allen
, S.
, and Kline
, K.
, 1971, “Lubrication Theory of Micropolar Fluids
,” ASME J. Appl. Mech.
0021-8936, 38
, pp. 646
–650
.4.
Balaram
, M.
, 1975, “Micropolar Squeeze Films
,” ASME J. Lubr. Technol.
0022-2305, 97
, pp. 635
–637
.5.
Khonsari
, M. M.
, and Brewe
, D. E.
, 1989, “On the Performance of Finite Journal Bearings Lubricated With Micropolar Fluids
,” STLE Tribol. Trans.
1040-2004, 32
(2
), pp. 155
–160
.6.
Maiti
, G.
, 1973, “Composite and Step Slider Bearings in Micropolar Fluid
,” Jpn. J. Appl. Phys.
, 12
(7
), pp. 1058
–1064
. 0021-49227.
Maiti
, G.
, 1974, “Micropolar Squeeze Film Bearing
,” Jpn. J. Appl. Phys.
, 13
(9
), pp. 1440
–1442
. 0021-49228.
Sukhla
, J. B.
, and Isa
, M.
, 1974, “Externally Pressurized Optimum Bearing With Micropolar Fluid as Lubricant
,” Jpn. J. Appl. Phys.
, 14
(2
), pp. 275
–279
. 0021-49229.
Huang
, T. W.
, Weng
, C.
, and Chen
, C. K.
, 1988, “Analysis of Finite Width Journal Bearings With Micropolar Fluids
,” Wear
, 123
, pp. 1
–12
. 0043-164810.
Huang
, T. W.
, and Weng
, C.
, 1990, “Dynamics Characteristics of Finite Width Journal Bearings With Micropolar Fluids
,” Wear
, 141
, pp. 23
–33
. 0043-164811.
Prakash
, J.
, and Sinha
, P.
, 1975, “Lubrication Theory of Micropolar Fluids and Its Application to a Journal Bearing
,” Int. J. Eng. Sci.
, 13
, pp. 217
–232
. 0020-722512.
Prakash
, J.
, and Sinha
, P.
, 1976, “A Study of Squeezing Flow in Micropolar Fluid Lubricated Journal Bearings
,” Wear
, 38
, pp. 17
–28
. 0043-164813.
Singh
, C.
, and Sinha
, P.
, 1982, “The Three-Dimensional Reynolds Equation for Micropolar Fluid Lubricated Bearings
,” Wear
, 76
(2
), pp. 199
–209
. 0043-164814.
Isa
, M.
, and Zaheeruddin
, Kh.
, 1981, “Characteristics of Squeeze Film Porous Journal Bearings With Micropolar Lubricant
,” Trans. Can. Soc. Mech. Eng.
0315-8977, 6
(3
), pp. 146
–150
.15.
Zaheeruddin
, Kh.
, and Isa
, M.
, 1978, “Micropolar Fluid Lubrication of One Dimensional Journal Bearings
,” Wear
, 50
, pp. 211
–220
. 0043-164816.
Tipei
, N.
, 1979, “Lubrication With Micropolar Liquids and Its Application to Short Bearings
,” ASME J. Lubr. Technol.
0022-2305, 101
, pp. 356
–363
.17.
Yousif
, A. E.
, and Thamir
, M. I.
, 1983, “Lubrication of Infinitely Long Thrust Bearings With Micropolar Fluids
,” Wear
, 89
, pp. 137
–150
. 0043-164818.
Das
, S.
, Guha
, S. K.
, and Chattopadhyay
, A. K.
, 2001, “On the Conical Whirl Instability of Hydrodynamic Journal Bearings Lubricated With Micropolar Fluids
,” Proc. Inst. Mech. Eng., Part J: J. Eng. Tribol.
, 215
, pp. 431
–439
. 0031-244419.
Das
, S.
, Guha
, S. K.
, and Chattopadhyay
, A. K.
, 2002, “On the Steady-State Performance of Misaligned Hydrodynamic Journal Bearings Lubricated With Micropolar Fluids
,” Tribol. Int.
0301-679X, 35
, pp. 201
–210
.20.
Wang
, X. -L.
, and Zhu
, K. -Q.
, 2004, “A Study of the Lubricating Effectiveness of Micropolar Fluids in a Dynamically Loaded Journal Bearing
,” Tribol. Int.
, 37
, pp. 481
–490
. 0301-679X21.
Das
, S.
, Guha
, S. K.
, and Chattopadhyay
, A. K.
, 2005, “Linear Stability Analysis of Hydrodynamic Journal Bearings Under Micropolar Lubrication
,” Tribol. Int.
, 38
, pp. 500
–507
. 0301-679X22.
Wang
, X. -L.
, and Zhu
, K. -Q.
, 2006, “Numerical Analysis of Journal Bearings Lubricated With Micropolar Fluids Including Thermal and Cavitating Effects
,” Tribol. Int.
, 39
, pp. 227
–237
. 0301-679X23.
Sinhasan
, R.
, Sharma
, S. C.
, and Jain
, S. C.
, 1989, “Performance Characteristics of a Constant Flow Valve Compensated Multirecess Flexible Hydrostatic Journal Bearing
,” Wear
, 134
, pp. 335
–356
. 0043-164824.
Sharma
, S. C.
, Jain
, S. C.
, Sinhasan
, R.
, and Sah
, P. L.
, 2001, “Static and Dynamic Performance Characteristics of Orifice Compensated Hydrostatic Flexible Journal Bearing With Non-Newtonian Lubricants
,” STLE Tribol. Trans.
, 44
(2
), pp. 242
–248
. 0043-1648Copyright © 2009
by American Society of Mechanical Engineers
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