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Keywords: dynamic coefficients
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Journal Articles
Article Type: Research Papers
J. Tribol. June 2023, 145(6): 064102.
Paper No: TRIB-21-1498
Published Online: March 16, 2023
... 29 12 2022 31 12 2022 16 03 2023 conical hybrid floating ring bearing thermodynamic lubrication temperature field dynamic coefficients stability performance National Natural Science Foundation of China 10.13039/501100001809 51575498 Bearing is a key part...
Journal Articles
Journal Articles
Article Type: Research-Article
J. Tribol. February 2019, 141(2): 022201.
Paper No: TRIB-18-1108
Published Online: September 17, 2018
... axially partial helical grooves static and dynamic characteristics leakage flow rate dynamic fluid-film force dynamic coefficients whirl-frequency ratio effective damping coefficient Helically grooved seals have been proposed as a means of achieving greater reduction in the leakage flow rate...
Journal Articles
Article Type: Research-Article
J. Tribol. January 2013, 135(1): 011702.
Paper No: TRIB-12-1047
Published Online: December 20, 2012
... profiles that improve stability margins of rotor-bearing systems. The profile is defined by control points and cubic splines. Stability margins are estimated using bearing dynamic coefficients, and obtained solutions are analyzed as a function of the number of control points and of the Sommerfeld number...
Journal Articles
Article Type: Hydrodynamic Lubrication
J. Tribol. January 2012, 134(1): 011704.
Published Online: February 24, 2012
... solving the unsteady compressible thin film fluid equations, we propose a method based on the use of frequency dependent dynamic coefficients and on the rational function approximation of the resulting impedances. Calculating impedances for several eccentricities enables mapping the full dynamic behavior...
Journal Articles
Article Type: Research Papers
J. Tribol. January 2009, 131(1): 011703.
Published Online: December 2, 2008
... of the analytical method is that the complete set of dynamic coefficients of tilting-pad gas bearings can be obtained. The predictions show that the perturbation frequency has the strong effects on the dynamic coefficients of gas bearings. In general, at lower perturbation frequency, the equivalent direct stiffness...
Journal Articles
Journal Articles
Journal Articles
Article Type: Technical Papers
J. Tribol. April 2007, 129(2): 348–353.
Published Online: December 5, 2006
...Guang Qiao; Liping Wang; Tiesheng Zheng This paper describes a mathematical model to study the linear stability of a tilting-pad journal bearing system. By employing the Newton-Raphson method and the pad assembly technique, the full dynamic coefficients involving the shaft degrees of freedom...