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Communication Dans Un Congrès Année : 2012

Dynamic analysis of a harmonically excited on-board rotor-bearing system

M. Zaki Dakel
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Sébastien Baguet
Régis Dufour

Résumé

The aim of this paper is to investigate the dynamic behavior of an on-board rotor mounted on elastic bearings in the presence of rigid support movements. The proposed on-board rotor model is based on the Timoshenko beam finite elements. It takes into account the six translations and rotations of its rigid support and the geometric asymmetry of shaft and/or rigid disks. Thus the obtained equations of motion of the rotating rotor in bending contain time-varying parametric terms which can lead to lateral dynamic instability. The influence of support rotational or translational motions is analyzed by means of orbits of the rotor, responses in the time domain and fast Fourier transforms (FFT).
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Dates et versions

hal-00759440 , version 1 (15-11-2019)

Identifiants

  • HAL Id : hal-00759440 , version 1

Citer

M. Zaki Dakel, Sébastien Baguet, Régis Dufour. Dynamic analysis of a harmonically excited on-board rotor-bearing system. 10th IMechE International Conference on Vibrations in Rotating Machinery (VIRM10), Sep 2012, London, United Kingdom. pp.C1326/024. ⟨hal-00759440⟩
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