Abstract

The application of piezoelectric actuators and sensors in the vibration suppression of flexible structures is demonstrated experimentally. Navy Type II piezoceramic wafers were bonded at the base of a flexible arm to increase damping of its first structural mode at at 0.138 Hz. A Positive Position Feedback (PPF) analog compensator was used for active vibration control. The damping of the first mode was increased from 0.3% to 1.5 % by using the active control.

Volume Subject Area:
14th Biennial Conference on Mechanical Vibration and Noise: Vibration and Control of Mechanical Systems
Topics:
Actuators, Sensors, Space frame structures, Vibration control, Damping, Feedback, Flexible structures, Navy, Piezoelectric actuators, Piezoelectric ceramics, Semiconductor wafers, Vibration suppression
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Copyright © 1993 by The American Society of Mechanical Engineers
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