For a tuned or symmetrically mistuned bladed disk assembly, several vibration modes are coupled only to the axial dynamics, which forces controllers to rely on an axial actuator. A control strategy based upon deliberately mistuning in a nonsymmetric manner, which results in a time periodic dynamical system, is developed. The method presented does not require an active thrust bearing for complete controllability of a bladed disk assembly via hub based actuators.

Issue Section:
Technical Briefs
Keywords:
periodic control, controllers, vibration control, rotation, actuators
Topics:
Actuators, Blades, Control equipment, Disks, Manufacturing, Vibration, Rotation
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Copyright © 2001
 by ASME
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