Dynamique non linéaire d’un ensemble rotor-stator comportant des mécanismes non linéaires avec jeu

Authors

  • Jean-Jacques Sinou Laboratoire de Tribologie et Dynamique des Systèmes CNRS UMR 5513 Equipe Dynamique des Systèmes et des Structures Ecole Centrale de Lyon, 36 avenue Guy de Collongue F-69134 Lyon cedex
  • Fabrice Thouverez Laboratoire de Tribologie et Dynamique des Systèmes CNRS UMR 5513 Equipe Dynamique des Systèmes et des Structures Ecole Centrale de Lyon, 36 avenue Guy de Collongue F-69134 Lyon cedex
  • Louis Jézéquel Laboratoire de Tribologie et Dynamique des Systèmes CNRS UMR 5513 Equipe Dynamique des Systèmes et des Structures Ecole Centrale de Lyon, 36 avenue Guy de Collongue F-69134 Lyon cedex

Keywords:

dynamic systems, rotordynamics, Hertz contact, bearing clearances, rotor/stator contact, nonlinear analysis, harmonic balance method

Abstract

This paper presents a research devoted to the study of a rotor/stator contact induced vibration problems in turbo-machinery. A numerical rotor/stator system including a nonlinear bearing with Hertz contact and clearance is considered. Due to these nonlinearities, a complex non-linear analysis is necessary. To determine the non-linear responses of the rotor/stator system, the nonlinear dynamic equations can be integrated numerically. But this procedure is both time consuming and costly to perfom. The aim of this paper is to apply the Alternate Frequency/Time Method in order to determine the non-linear responses of the rotor/stator problem. By using this non-linear method, the orbits of rotor and stator and the evolutions of the associated contact force responses at various speeds will be performed.

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References

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Published

2004-06-11

How to Cite

Sinou, J.-J., Thouverez, F. ., & Jézéquel, L. (2004). Dynamique non linéaire d’un ensemble rotor-stator comportant des mécanismes non linéaires avec jeu. European Journal of Computational Mechanics, 13(5-7), 737–750. Retrieved from https://journals.riverpublishers.com/index.php/EJCM/article/view/2339

Issue

2004: Vol 13 Iss 5-7

Section

Original Article

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