Analysis of an Accelerating Rotor-Bearing System With Flexible Damped Supports PUBLIC ACCESS

[+] Author Affiliations
Euro L. Casanova, Luis U. Medina

Universidad Simón Bolívar, Caracas, Venezuela

Paper No. 98-GT-411, pp. V005T14A038; 6 pages
  • ASME 1998 International Gas Turbine and Aeroengine Congress and Exhibition
  • Volume 5: Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education
  • Stockholm, Sweden, June 2–5, 1998
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-7866-8
  • Copyright © 1998 by ASME


This paper deals with the dynamics of an accelerating unbalanced Jeffcott rotor-bearing system mounted on damped, flexible supports. The general equations of motion for such a system are presented and discussed. The rotor response was predicted, via numerical integration, for various cases in runup and rundown conditions and presented in graphical form. The effects of acceleration on the rotor peak amplitude and the speed at which the peak occurs is discussed and compared to steady state predictions.

Copyright © 1998 by ASME
Topics: Bearings , Rotors
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