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Vibration suppression by stiffness controlThe feasibility of using piezoelectric ceramics as both sensors and actuators for vibration suppression in a lightweight, flimsy structure was demonstrated. Multimode control was achieved using one sensor and actuator pair. The Positive Position Feedback control strategy requires only knowledge of the natural frequencies of the structure. Implementation of the Positive Position Feedback used only strain measurements to achieve damping, no velocities, or acceleration are needed. All spillover is stabilizing for sufficient small gains.
Document ID
19870013297
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Fanson, James (California Inst. of Tech. Pasadena, CA, United States)
Caughey, Thomas (California Inst. of Tech. Pasadena, CA, United States)
Chen, Jay (California Inst. of Tech. Pasadena, CA, United States)
Date Acquired
September 5, 2013
Publication Date
April 1, 1987
Publication Information
Publication: NASA. Marshall Space Flight Center Structural Dynamics and Control Interaction of Flexible Structures
Subject Category
Structural Mechanics
Accession Number
87N22730
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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