Location of Repository

Stability analysis of the lateral oscillations of a flexibly supported viscoelastic Jeffcott rotor

By P. Ferfecki

Abstract

Material damping has a significant influence on vibrations of flexible rotors and can induce their self excited oscillations. The squeeze film dampers inserted in the rotor supports are frequently used to suppress occurrence of these undesirable operating conditions. Modelling the shaft by means of a Kelvin- Voigt material can arrive at the overestimation of the effect of internal damping on the rotor movement. This was a motivation to develop a procedure based on utilization of the Zener material (standard solid theoretical material) to represent the shaft of a Jeffcott rotor supported by squeeze film dampers. The development and testing of this procedure, the experimental determination of the appropriate material constants, and learning more on the influence of material damping on the stability and vibration attenuation of flexible rotors are the principal contributions of the presented article

Topics: squeeze film dampers; Zener material; vibration amplitude and stability; Jeffcott rotor
Year: 2016
OAI identifier: oai:invenio.nusl.cz:253620
Download PDF:
Sorry, we are unable to provide the full text but you may find it at the following location(s):
  • http://www.nusl.cz/ntk/nusl-25... (external link)
  • Suggested articles


    To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.