A dynamic model of a rotating shaft on two textured hydrodynamic journal bearings is presented. The hydrodynamic mean pressure is computed using multiscale periodic homogenization and is projected on a flexible shaft with internal damping. Harmonic balance method (HBM) is used to study the limit cycles of unbalance response of the coupled system discretized by finite element method (FEM). Stability is analyzed with Floquet multipliers computation. An example of an isotropic texturing pattern representing laser dimples on a lightweight rotor is analyzed. Vibration amplitude and stability zone are compared with plain bearing lubrication. It is shown in an example that full surface texturing leads to relatively higher vibration amplitude compared to plain bearings.
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September 2017
Research-Article
Nonlinear Effects of Surface Texturing on the Performance of Journal Bearings in Flexible Rotordynamic Systems
Jocelyn Rebufa,
Jocelyn Rebufa
LTDS, Laboratoire de Tribologie et de
Dynamique des Systèmes,
Ecole Centrale de Lyon,
Ecully 69130, France;
CEA, Commissariat à l’énergie atomique
et aux énergies alternatives,
DEN–DTEC,
Bagnols sur Cèze 30200, France
e-mail: jrebufa@ec-lyon.fr
Dynamique des Systèmes,
Ecole Centrale de Lyon,
Ecully 69130, France;
CEA, Commissariat à l’énergie atomique
et aux énergies alternatives,
DEN–DTEC,
Bagnols sur Cèze 30200, France
e-mail: jrebufa@ec-lyon.fr
Search for other works by this author on:
Fabrice Thouverez,
Fabrice Thouverez
Professor
LTDS, Laboratoire de Tribologie
et de Dynamique des Systèmes,
Ecole Centrale de Lyon,
Ecully 69130, France
e-mail: fabrice.thouverez@ec-lyon.fr
LTDS, Laboratoire de Tribologie
et de Dynamique des Systèmes,
Ecole Centrale de Lyon,
Ecully 69130, France
e-mail: fabrice.thouverez@ec-lyon.fr
Search for other works by this author on:
Erick Le Guyadec,
Erick Le Guyadec
CEA, Commissariat à l’énergie atomique
et aux énergies alternatives,
DEN–DTEC,
Bagnols sur Cèze 30200, France
e-mail: erick.leguyadec@cea.fr
et aux énergies alternatives,
DEN–DTEC,
Bagnols sur Cèze 30200, France
e-mail: erick.leguyadec@cea.fr
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Denis Mazuyer
Denis Mazuyer
Professor
LTDS, Laboratoire de Tribologie
et de Dynamique des Systèmes,
Ecole Centrale de Lyon,
Ecully 69130, France
e-mail: denis.mazuyer@ec-lyon.fr
LTDS, Laboratoire de Tribologie
et de Dynamique des Systèmes,
Ecole Centrale de Lyon,
Ecully 69130, France
e-mail: denis.mazuyer@ec-lyon.fr
Search for other works by this author on:
Jocelyn Rebufa
LTDS, Laboratoire de Tribologie et de
Dynamique des Systèmes,
Ecole Centrale de Lyon,
Ecully 69130, France;
CEA, Commissariat à l’énergie atomique
et aux énergies alternatives,
DEN–DTEC,
Bagnols sur Cèze 30200, France
e-mail: jrebufa@ec-lyon.fr
Dynamique des Systèmes,
Ecole Centrale de Lyon,
Ecully 69130, France;
CEA, Commissariat à l’énergie atomique
et aux énergies alternatives,
DEN–DTEC,
Bagnols sur Cèze 30200, France
e-mail: jrebufa@ec-lyon.fr
Fabrice Thouverez
Professor
LTDS, Laboratoire de Tribologie
et de Dynamique des Systèmes,
Ecole Centrale de Lyon,
Ecully 69130, France
e-mail: fabrice.thouverez@ec-lyon.fr
LTDS, Laboratoire de Tribologie
et de Dynamique des Systèmes,
Ecole Centrale de Lyon,
Ecully 69130, France
e-mail: fabrice.thouverez@ec-lyon.fr
Erick Le Guyadec
CEA, Commissariat à l’énergie atomique
et aux énergies alternatives,
DEN–DTEC,
Bagnols sur Cèze 30200, France
e-mail: erick.leguyadec@cea.fr
et aux énergies alternatives,
DEN–DTEC,
Bagnols sur Cèze 30200, France
e-mail: erick.leguyadec@cea.fr
Denis Mazuyer
Professor
LTDS, Laboratoire de Tribologie
et de Dynamique des Systèmes,
Ecole Centrale de Lyon,
Ecully 69130, France
e-mail: denis.mazuyer@ec-lyon.fr
LTDS, Laboratoire de Tribologie
et de Dynamique des Systèmes,
Ecole Centrale de Lyon,
Ecully 69130, France
e-mail: denis.mazuyer@ec-lyon.fr
1Corresponding author.
Contributed by the Tribology Division of ASME for publication in the JOURNAL OF TRIBOLOGY. Manuscript received April 14, 2016; final manuscript received August 25, 2016; published online May 26, 2017. Assoc. Editor: Joichi Sugimura.
J. Tribol. Sep 2017, 139(5): 051705 (9 pages)
Published Online: May 26, 2017
Article history
Received:
April 14, 2016
Revised:
August 25, 2016
Citation
Rebufa, J., Thouverez, F., Le Guyadec, E., and Mazuyer, D. (May 26, 2017). "Nonlinear Effects of Surface Texturing on the Performance of Journal Bearings in Flexible Rotordynamic Systems." ASME. J. Tribol. September 2017; 139(5): 051705. https://doi.org/10.1115/1.4034765
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