Assessment of 3D modeling for rotor-stator contact simulations - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Journal of Sound and Vibration Année : 2015

Assessment of 3D modeling for rotor-stator contact simulations

Résumé

Most often the dynamic analysis of rotor-to-stator rub is performed using 1D models. This leads to a small computational cost, but the reliability of the results is difficult to assess. This research work compares and analyzes the results of 1D and 3D rotor-stator contact problems, for different contact conditions more and less severe. The rotor vibrations are due to rotating imbalance at a given constant rotating speed. In this paper, it is shown that regarding the rotor orbits, the 3D and 1D models responses are very closed. However using a 3D model improves the simulation results. The 1D model actually suffers from limitations resulting from rigid-body displacement assumption of the rotor cross-section, which originates approximations in the rotor-to-stator contact modeling. Thus, the friction torque generated by the contact is overestimated in a 1D model. The 3D model, however, can present some local effects in the vicinity of the contact zone.
Fichier principal
Vignette du fichier
preprint_MTPCMTDD.pdf (5.49 Mo) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

hal-01169965 , version 1 (26-11-2017)

Identifiants

Citer

Mikhael Tannous, Patrice Cartraud, Mohamed Torkhani, David Dureisseix. Assessment of 3D modeling for rotor-stator contact simulations. Journal of Sound and Vibration, 2015, 353, pp.327-343. ⟨10.1016/j.jsv.2015.05.025⟩. ⟨hal-01169965⟩
212 Consultations
121 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More