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Dynamic Behavior of Geared Rotors PUBLIC ACCESS

[+] Author Affiliations
T. N. Shiau

National Chung Cheng University, Chia-Yi, Taiwan

J. S. Rao

Indian Institute of Technology, New Delhi, India

J. R. Chang, Siu-Tong Choi

National Cheng Kung University, Tainan, Taiwan

Paper No. 97-GT-187, pp. V004T14A034; 10 pages
doi:10.1115/97-GT-187
From:
  • ASME 1997 International Gas Turbine and Aeroengine Congress and Exhibition
  • Volume 4: Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education; IGTI Scholar Award
  • Orlando, Florida, USA, June 2–5, 1997
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-7871-2
  • Copyright © 1997 by ASME

abstract

This paper is concerned with the dynamic behavior of geared rotor systems supported by squeeze film dampers, wherein coupled bending torsion vibrations occur. Considering the imbalance forces and gravity, it is shown that geared rotors exhibit chaotic behavior due to non linearity of damper forces. The route to chaos in such systems is established. In geared rotor systems, it is shown that torsional excitation can induce lateral vibrations. It is shown that squeeze film dampers can suppress large amplitudes of whirl arising out of torsional excitation.

Copyright © 1997 by ASME
Topics: Rotors
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