A rotor-bearing system is simulated in this study to investigate the effect of worn journal bearings on the system response and to specify the eventual development of additional frequency components. The well-known symmetric Dufrane bearing wear model is used here. The main target here is the investigation of the wear influence on the system response. An experimental layout was constructed for the needs of the current research, including an artificially worn bearing. It was observed that sub- and superharmonics are revealed in the continuous wavelet transform (CWT) of the rotor-bearing system response for worn bearings.
Issue Section:
Research Papers
References
1.
Lee
, C. W.
, Katz
, R.
, Ulsoy
, A. G.
, and Scott
, R. A.
, 1988
, “Modal Analysis of a Distributed-Parameter Rotating Shaft
,” J. Sound Vib.
, 122
, pp. 119
–130
.10.1016/S0022-460X(88)80010-52.
Lee
, C. W.
, and Jei
, Y. J.
, 1988
, “Modal Analysis of Continuous Rotor-Bearing Systems
,” J. Sound Vib.
, 126
, pp. 345
–361
.10.1016/0022-460X(88)90246-53.
Jei
, Y. J.
, and Lee
, C. W.
, 1993
, “Modal Characteristics of Asymmetrical Rotor-Bearing Systems
,” J. Sound Vib.
, 162
, pp. 209
–229
.10.1006/jsvi.1993.11144.
Adams
, M. L.
, 1980
, “Non-Linear Dynamics of Flexible Multi-Bearing Rotors
,” J. Sound Vib.
, 71
, pp. 129
–144
.10.1016/0022-460X(80)90413-75.
Hong
, S. W.
, and Kim
, J. W.
, 1999
, “Modal Analysis of Multi-Span Timoshenko Beams Connected or Supported by Resilient Joints With Damping
,” J. Sound Vib.
, 227
, pp. 787
–806
.10.1006/jsvi.1999.23856.
Hong
, S. W.
, and Park
, J. H.
, 1999
, “Dynamic Analysis of Multi-Stepped, Distributed Parameter Rotor-Bearing Systems
,” J. Sound Vib.
, 227
, pp. 769
–785
.10.1006/jsvi.1999.23847.
Shen
, G.
, Xiao
, Z.
, Zhang
, W.
, and Zheng
, T.
, 2006
, “Non-Linear Behavior Analysis of a Rotor Supported on Fluid-Film Bearings
,” J. Vibr. Acoust.
, 128
, pp. 35
–40
.10.1115/1.21493948.
JianPing
, J.
, Guang.
M.
, Yi.
S.
, and SongBo.
, X.
, 2004
, “On the Non-Linear Dynamic Behavior of a Rotor-Bearing System
,” J. Sound Vib.
, 274
, pp. 1031
–1044
.10.1016/S0022-460X(03)00663-19.
Kumar
, A.
, and Mishra
, S.
, 1996
, “Stability of a Rigid Rotor in Turbulent Hydrodynamic Worn Journal Bearings
,” Wear
, 193
, pp. 25
–30
.10.1016/0043-1648(95)06654-310.
Dufrane
, K. F.
, Kannel
, J. W.
, and McCloskey
, T.
, 1983
, “Wear of Steam Turbine Journal Bearings at Low Operating Speeds
,” ASME J. Lubr. Technol.
, 105
, pp. 313
–317
.10.1115/1.325459911.
Fillon
, M.
, and Bouyer
, J.
, 2004
, “Thermo Hydrodynamic Analysis of a Worn Plain Journal Bearing
,” Tribol. Int.
, 37
, pp. 129
–136
.10.1016/S0301-679X(03)00051-312.
Papadopoulos
, C.
, Nikolakopoulos
, P.
, and Gounaris
, G.
, 2008
, “Identification of Clearances and Stability Analysis for a Rotor-Journal Bearing System
,” Mech. Mach. Theory
, 43
, pp. 411
–426
.10.1016/j.mechmachtheory.2007.04.00713.
Rowe
, W. B.
, Xu
, S. X.
, Chong
, F. S.
, and Weston
, W.
, 1982
, “Hybrid Journal Bearings With Particular Reference to Hole-Entry Configurations
,” Tribol. Int.
, 15
, pp. 339
–348
.10.1016/0301-679X(82)90143-814.
Scharrer
, J. K.
, Hecht
, R. F.
, and Hibbs
, R. I.
, 1991
, “The Effects of Wear on the Rotordynamic Coefficients of Hydrostatic Journal Bearing
,” ASME J. Tribol.
113
, pp. 210
–213
.10.1115/1.292059115.
Laurant
, F.
, and Childs
, D. W.
, 2002
, “Measurement of Rotordynamic Coefficients of Hybrid Bearings With (a) a Plugged Orifice, and (b) a Worn Land Surface
,” ASME J. Eng. Gas Turbines Power
, 124
, pp. 363
–368
.10.1115/1.140346116.
Reddecliff
, J. M.
, and Vohr
, J. H.
, 1969
, “Hydrostatic Bearings for Cryogenic Rocket Engine Turbopumps
,” ASME J. Lubr. Technol.
, pp. 557
–575
.10.1115/1.355498917.
Bouyer
, J.
, Fillon
, M.
, and Piere-Danos
, M.
, 2007
, “Influence of Wear on the Behavior of a Two-Lobe Hydrodynamic Journal Bearing Subjected to Numerous Startups and Stops
,” J. Tribol.
, 129
, pp. 205
–208
.10.1115/1.240121018.
Sharma
, S. C.
, Phalle
, V. M.
, and Jain
, S. C.
, 2011
, “Influence of Wear on the Performance of a Multirecess Conical Hybrid Journal Bearing Compensated With Orifice Restrictor
,” Tribol. Int.
, 44
, pp. 1754
–1764
.10.1016/j.triboint.2011.06.03219.
Gertzos
, K. P.
, Nikolakopoulos
, P. G.
, Chasalevris
, A. C.
, and Papadopoulos
, C. A.
, 2011
, “Wear Identification in Rotor-Bearing Systems by Measurements of Dynamic Bearing Characteristics
,” Comput. Struct.
, 89
, pp. 55
–66
.10.1016/j.compstruc.2010.08.00620.
Nikolakopoulos
, P. G.
, Papadopoulos
, C. A.
, and Kaiktsis
, L.
, 2011
, “Elastohydrodynamic Analysis and Pareto Optimization of Intact, Worn and Misaligned Journal Bearings
,” Meccanica
, 46
, pp. 577
–588
.10.1007/s11012-010-9319-721.
Jun
, O. S.
, and Kim
, J. O.
, 1994
, “Free Bending Vibrations of a Multi-Step Rotor
,” J. Sound Vib.
, 224
, pp. 625
–642
.10.1006/jsvi.1999.220622.
Lee
, C. W.
, 1993
, Vibration Analysis of Rotors
, Kluwer Academic
, Dordrecht, The Netherlands
.23.
Yamamoto
, T.
, and Ishida
, Y.
, 2001
, Linear and Nonlinear Rotor Dynamics
, (Wiley Series in Nonlinear Science
), Wiley, New York
.24.
Eshleman
, R. L.
, and Eubanks
, R. A.
, 1969
, “On the Critical Speeds of a Continuous Rotor
,” J. Eng. Ind.
, 91
(4)
, pp. 1180
–1188
.10.1115/1.359176825.
Chen
, W. J.
, and Gunter
, E. J.
, 2005
, Introduction to Dynamics of Rotor—Bearing Systems
, Eigen Technologies, Inc.
, Davidson, NC
.26.
Childs
, D.
, 1993
, Turbomachinery Rotor Dynamics
, Wiley
, New York
.27.
Vance
, J. M.
, 1988
, Rotordynamics of Turbomachinery
, Wiley
, New York
.28.
Wright
, K.
, 1969
, “Designing Against Wear. I—The Basic Mechanisms of Wear
,” Tribology
, 2
(3)
, pp. 152
–161
.10.1016/S0041-2678(69)80106-529.
Pratt
, G.
, 1969
, “Design Against Wear. II—Wear of Plain Bearings
, Tribology
, 22
, pp. 162
–165
.10.1016/S0041-2678(69)80107-730.
Mokhtar
, M.
, Howarth
, R.
, and Davies
, P.
, 1977
, “Wear Characteristics of Plain Hydrodynamic Journal Bearings During Repeated Starting and Stopping
,” ASLE Trans.
, 20
, pp. 191
–194
.10.1080/0569819770898283331.
Chasalevris
, A.
, and Papadopoulos
, C.
, 2009
, “A Continuous Model Approach for Cross-Coupled Bending Vibrations of a Rotor-Bearing System, With a Transverse Breathing Crack
,” Mech. Mach. Theory
, 44
, pp. 1176
–1191
.10.1016/j.mechmachtheory.2008.09.00132.
Mathematica
, 2005
, Wolfram Research, Inc.
, Champaign, IL
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