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Active control of flexural vibrations in beamsAn analytical model of the feedback control system which estimates the voltage generated by the piezoelectric sensor as a function of the dynamic stress at the sensor location and the force exerted by the driver piezoelectric as a function of signal gain is developed. The analytical results are compared to measured results for a cantilever beam excited to vibrate in its first natural mode. The estimated increase in the first mode damping factor is in good agreement with the measured results.
Document ID
19890058482
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Gerhold, Carl H.
(Texas A & M University College Station, United States)
Rocha, Rodney
(NASA Johnson Space Flight Center Houston, TX, United States)
Date Acquired
August 14, 2013
Publication Date
July 1, 1989
Publication Information
Publication: Journal of Aerospace Engineering
Volume: 2
ISSN: 0893-1321
Subject Category
Cybernetics
Accession Number
89A45853
Distribution Limits
Public
Copyright
Other

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