In Operation Detection and Correction of Rotor Imbalance in Jet Engines Using Active Vibration Control

Document Number: 941151

Date Published: April 1994

Author(s):
Daniel W. Manchala - Texas A&M Univ.
Alan B. Palazzolo - Texas A&M Univ.
Albert F. Kascak - U.S. Army
Gerald T. Montague - NASA Lewis Research Center
Gerald V. Brown - NASA Lewis Research Center
Charles Lawrence - NASA Lewis Research Center
Steve Klusman - Allison Engine Co.

Abstract:
Jet engines may experience severe vibration due to the sudden imbalance caused by blade failure. This research investigates employment of on board magnetic bearings or piezolectric actuators to cancel these forces in flight. This operation requires identification of the source of the vibrations via an expert system, determination of the required phase angles and amplitudes for the correction forces, and application of the desired control signals to the magneitc bearings or piezo electric actuators. This paper will show the architecture of the software system, details of the control algorithm used for the sudden imbalance correction project described above, and the laboratory test results.

File Size: 770K
Product Status: In Stock

See other papers presented at Aerospace Atlantic Conference & Exposition, April 1994, Dayton, OH, USA, Session: Aerospace Atlantic Conference & Exposition

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