An Electromechanical Simulation Method for Active Vibration Control of a Magnetic Bearing Supported Rotor PUBLIC ACCESS

[+] Author Affiliations
Punan Tang, A. B. Palazzolo

Texas A&M University, College Station, TX

Gerald Brown, Eliseo DiRusso, Albert Kascak

NASA Lewis, Cleveland, OH

Paper No. 93-GT-382, pp. V03CT17A043; 11 pages
  • ASME 1993 International Gas Turbine and Aeroengine Congress and Exposition
  • Volume 3C: General
  • Cincinnati, Ohio, USA, May 24–27, 1993
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-7892-7
  • Copyright © 1993 by ASME


A reliable electromechanical simulation model is essential for designing rotor systems supported by magnetic bearings. Accurate predictions of forced response, critical speeds and stability are required to assure machinery health and reliability. This paper presents a general methodology which couples a finite element based model of the rotor with state space models of the sensors, control system and actuators. A least squares based algorithm is presented for obtaining the state space representation of the digital (DSP) controller, actuator, and power amplifiers from their measured frequency response functions. This general simulation method is illustrated by application to a cryogenic magnetic bearing test rig at NASA Lewis.

Copyright © 1993 by ASME
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