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Rotordynamic Modeling of an Actively Controlled Magnetic Bearing Gas Turbine Engine PUBLIC ACCESS

[+] Author Affiliations
B. M. Antkowiak

The Charles Stark Draper Laboratory, Inc., Cambridge, MA

F. C. Nelson

Tufts University, Medford, MA

Paper No. 97-GT-013, pp. V004T14A004; 6 pages
doi:10.1115/97-GT-013
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 summarizes the development of a finite element rotordynamic solution used in a closed loop simulation for a magnetic bearing rotor system in a gas turbine engine. A magnetic bearing controlled rotor is analyzed, and the state dynamics matrix [A], the shaft control influence matrix [B], and the sensor matrix [C] are constructed. Bode plots of the state-space transfer function are also constructed and compared to the results of the rotor dynamic model.

Copyright © 1997 by ASME
This article is only available in the PDF format.

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