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Nonlinear numerical analysis of a flexible rotor equipped with squeeze couple stress fluid film journal bearings

Nonlinear numerical analysis of a flexible rotor equipped with squeeze couple stress fluid film... Abstract This study performs a dynamic analysis of a rotor supported by two squeeze couple stress fluid film journal bearings with nonlinear suspension. The numerical results show that the stability of the system varies with the non-dimensional speed ratios and the dimensionless parameter l*. It is found that the system is more stable with higher dimensionless parameter l*. Thus it can conclude that the rotor-bearing system lubricated with the couple stress fluid is more stable than that with the conventional Newtonian fluid. The modeling results thus obtained by using the method proposed in this paper can be used to predict the stability of the rotor-bearing system and the undesirable behavior of the rotor and bearing center can be avoided. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png "Acta Mechanica Solida Sinica" Springer Journals

Nonlinear numerical analysis of a flexible rotor equipped with squeeze couple stress fluid film journal bearings

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Publisher
Springer Journals
Copyright
2007 The Chinese Society of Theoretical and Applied Mechanics and Technology
ISSN
0894-9166
eISSN
1860-2134
DOI
10.1007/s10338-007-0736-7
Publisher site
See Article on Publisher Site

Abstract

Abstract This study performs a dynamic analysis of a rotor supported by two squeeze couple stress fluid film journal bearings with nonlinear suspension. The numerical results show that the stability of the system varies with the non-dimensional speed ratios and the dimensionless parameter l*. It is found that the system is more stable with higher dimensionless parameter l*. Thus it can conclude that the rotor-bearing system lubricated with the couple stress fluid is more stable than that with the conventional Newtonian fluid. The modeling results thus obtained by using the method proposed in this paper can be used to predict the stability of the rotor-bearing system and the undesirable behavior of the rotor and bearing center can be avoided.

Journal

"Acta Mechanica Solida Sinica" – Springer Journals

Published: Dec 1, 2007

Keywords: Theoretical and Applied Mechanics; Surfaces and Interfaces, Thin Films; Classical Mechanics

References

  • Load enhancement effects due to polymer thickening in a short model journal bearings
    DR Oliver
  • The behavior of lubricants in contacts: current understanding and future possibilities
    HA Spikes
  • Couple-stresses in fluids
    VK Stokes
  • Slider bearings lubricated by fluids with couple stress
    G Ramanaiah
  • Analysis of couple stress lubricant in hydrostatic thrust bearings
    RS Gupta, LG Sharma
  • Couple-stresses in peristaltic transport of fluids
    EFE Shehawey, KS Mekheimer
  • Elastohydrodynamic lubrication theory of line contacts: couple stress fluid model
    NC Das
  • A study of optimum load-bearing capacity for slider bearings lubricated with couple stress fluids in magnetic field
    NC Das
  • An inverse solution for finite journal bearings lubricated with couple stress fluids
    AE Abdallah, HG Lotfi
  • Combined effects of couple stresses and surface roughness on the lubrication of short journal bearings
    CH Hsu, JR Lin, HL Chiang
  • Analysis of double-layered journal bearings lubricated with couple-stress fluids
    ME Lahmar
  • Squeeze films between finite plates lubricated by fluids with couple stress
    G Ramanaiah
  • An analysis of squeeze film action in porous layered bearings
    NM Bujurke, HP Patil
  • Chaos and bifurcation of a flexible rub-impact rotor supported by oil film bearings with non-linear suspension
    CW Chang-Jian, CK Chen
  • Bifurcation and chaos of a flexible rotor supported by turbulent journal bearings with non-linear suspension
    CW Chang-Jian, CK Chen
  • Nonlinear dynamic analysis of a flexible rotor supported by micropolar fluid film journal bearings
    CW Chang-Jian, CK Chen
  • Bifurcation and chaos analysis of a flexible rotor supported by turbulent long journal bearings
    CW Chang-Jian, CK Chen
  • Analysis of the chaotic motion for a rotor system with a transverse crack
    YM Fu, YF Zheng, SJ Zhu