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Experiments on the Blade Loss Transient Response of Rotor With Flexible Damped Support PUBLIC ACCESS

[+] Author Affiliations
Qihan Li, Shiping Zhang, Litang Yan, Fuan Zhao

Beijing University of Aeronautics and Astronautics, Beijing, P. R. China

Paper No. 91-GT-149, pp. V005T14A021; 6 pages
doi:10.1115/91-GT-149
From:
  • ASME 1991 International Gas Turbine and Aeroengine Congress and Exposition
  • Volume 5: Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education; IGTI Scholar Award; General
  • Orlando, Florida, USA, June 3–6, 1991
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-7902-3
  • Copyright © 1991 by ASME

abstract

The purpose of this paper is to present some experimental results on the transient response dynamics of a rotor system with flexible damped support due to the event of simulated blade loss.

Experiments under different sudden unbalances applied on the rotor system with various SFD film clearances at different rotational speeds were performed. The instability conditions characterized by limiting circle orbits for large amplitude at damper location were determined and some special phenomena such as lock up, bistable jump and subharmonic etc. have been observed. The effectiveness and the capability of SFD for suppressing instability are analyzed.

Copyright © 1991 by ASME
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