Hostname: page-component-7bb8b95d7b-w7rtg Total loading time: 0 Render date: 2024-09-20T16:35:44.389Z Has data issue: false hasContentIssue false
  • English
  • Français

Damping coefficient estimation of a squeeze-film damper operating in a dual shaft test rig

Published online by Cambridge University Press:  24 December 2010

Claude Gibert ,
Mikhail Guskov ,
Lionel Sanchez  and
Fabrice Thouverez
Claude Gibert
Affiliation:
Laboratoire de Tribologie et Dynamique des Systèmes, (LTDS, UMR CNRS 5513), Équipe Dynamique des Structures et des Systèmes, École Centrale de Lyon, 36 avenue Guy de Collongue, 69134 ÉcullyCedex, France
Mikhail Guskov*
Affiliation:
Laboratoire de Tribologie et Dynamique des Systèmes, (LTDS, UMR CNRS 5513), Équipe Dynamique des Structures et des Systèmes, École Centrale de Lyon, 36 avenue Guy de Collongue, 69134 ÉcullyCedex, France Processes and Engineering for Mechanics and Materials Laboratory, (PIMM, UMR CNRS 8006), Structures and System Dynamics group, Arts & Métiers Paristech, 151 boulevard de l’Hopital, 75013 Paris, France
Lionel Sanchez
Affiliation:
Laboratoire de Tribologie et Dynamique des Systèmes, (LTDS, UMR CNRS 5513), Équipe Dynamique des Structures et des Systèmes, École Centrale de Lyon, 36 avenue Guy de Collongue, 69134 ÉcullyCedex, France
Fabrice Thouverez
Affiliation:
Laboratoire de Tribologie et Dynamique des Systèmes, (LTDS, UMR CNRS 5513), Équipe Dynamique des Structures et des Systèmes, École Centrale de Lyon, 36 avenue Guy de Collongue, 69134 ÉcullyCedex, France
*
a Corresponding author: mikhail.guskov@paris.ensam.fr
Get access

Abstract

Squeeze film dampers (SFD) are used to reduce dynamical loads in rotating machinery or to improve their performances in numerous industrial applications. The present paper considers the response of a dual shaft system with a SFD mounted on one of its bearings. The study is concerned with the overall system’s dynamics in presence of a sealed SFD bearing with a lateral feeding groove and more specifically with the characterization of such damper in operational conditions. The design characteristics of the SFD are based on the linear approximation and the optimization w.r.t. sensitivity of appropriate eigenmodes of a numerical model of the dual shaft test rig. In order to gain more insight into the SFD operation, the experimental kinematic and pressure measurements data are processed within a numerical model of the fluid film using the short bearing approximation of the Reynolds equation and taking into account the flow into the groove. The work holds for low Reynolds number and completely sealed SFD were vapour cavitation is completely absent.

Keywords

Rotor dynamicsmulti-shaftcritical speedsqueeze film damperexperimentDynamique des machines tournantesmulti-rotorsvitesse critiqueamortisseur à film écraséexpérience
Type
Research Article
Information
Mechanics & Industry , Volume 11 , Issue 5 , September 2010 , pp. 297 - 308
Copyright
© AFM, EDP Sciences 2010

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Références

J.M. Vance, Rotordynamics in turbomachinery, John Wiley & Sons, 1988
D. Childs, Turbomachinery rotordynamics. Phenomena, modelling and analysis, Wiley Interscience, 1993
F. Assis Rodrigues, Étude de la dynamique non-linéaire d’amortisseurs du type squeeze film, Ph.D. thesis, École Centrale de Lyon, 2003
C. Defaye, Intégration numérique et expérimentale d’éléments amortisseurs de type squeeze film damper dans les moteurs d’avion, Ph.D. thesis, Université de Poitiers, 2006
Assis Rodrigues, F., Thouverez, F., Gibert, C., Jezequel, L., Chebyshev polynomials fits for efficient analysis of finite length squeeze film damped rotors, J. Eng. Gas Turbine Power 125 (2003) 175–183 CrossRefGoogle Scholar
F.Y. Zeidan, L. San Andres, J.M. Vance, Design and aplication of squeeze film dampers in rotating machinery, Proceedings of the twenty-fifth turbomachinery symposium, Texas A&M University, 1996, pp. 169–188
El-Shafei, A., Stability analysis of intershaft squeeze film dampers, J. Sound Vibr. 148 (1991) 395–408 CrossRefGoogle Scholar
K. Gupta, S. Chatterjee, Dynamics of an improved inter shaft squeeze film damper: theory and experiment, Proceedings of GT2007 ASME Turbo Expo 2007: Power for Land, Sea and Air, May 14-17, 2007, Montreal, Canada, (GT-27534):10, 2007
A. Delgado, L. San Andres, Identification of squeeze-film damper force coefficients from multiple-frequency, non-circular journal motions, Proc. GT2009 ASME Turbo Expo 2009: Power for Land, Sea and Air, June 8–12, 2009, Orlando, Florida, USA (GT2009-59175):10, 2009
M. Guskov, J.-J. Sinou, F. Thouverez, O. Naraikin, Experimental and numerical investigations of a dual-shaft test rig with intershaft bearing, Int. J. Rotat. Mach. (2007), in press
M. Guskov, Dynamique non-linéaire des systèmes multi-rotors, Études numérique et expérimentale, Ph.D. thesis, Ecole Centrale de Lyon, 2007
M. Guskov, C. Gibert, L. Sanchez, F. Thouverez, Réponse dynamique d’un banc d’essais bi-rotors équipé d’un amortisseur squeeze-film : études numérique et expérimentale, XIXe Congrès Francais de mécanique, 2009
Qingchang, Tan, Ying, Chang, Lyjiang, Wang, Effect of a circumferential feeding groove on fluid force in short squeeze film dampers, Trib. Int. 30 (1997) 409–416 CrossRefGoogle Scholar
Jung, S.Y., San Andres, L.A., Vance, J.M., Measurements of pressure distributions and force coefficients in a squeeze film damper. Part ii: Partially sealed configuration, Trib. Trans. 34 (1991) 383–388 CrossRefGoogle Scholar
I.E. Idel’Cik, Memento des Pertes de Charge, Eyrolles Editeur, 1969
M. Arghir, J. Frene, Static and dynamic analysis of annular seals, in Proc. of ASME Fluids Engineering Division Summer Meeting 2006, FEDSM2006, Vol. 2 Forums, 2006, pp. 517–526