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Journal of Intelligent Material Systems and Structures
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What's this?

A Self-Tuning Piezoelectric Vibration Absorber

Joseph J. Hollkamp

Wright Laboratory/FIBGC, 2145 Fifth St Ste 2 Wright-Patterson AFB, OH 45433-7006

Thomas F. Starchville, Jr

Dept. of Aerospace Engineering Penn State University 233 Hammond Bldg. University Park, PA 16802-1401

A self-tuning piezoelectric vibration absorber is presented. A piezoelectric absorber, similar to a mechanical vibration absorber, has to be tuned to a particular structural vibration mode in order to be effective. The absorber presented here will tune itself to a particular mode and track that mode if it varies in frequency. Design of the aborber consists of a pair of lead zirconate titanate (PZT) tiles attached to the structure and shunted by an inductor-resistor circuit. This produces an electrical resonance that can be tuned to the desired structural mode by a simple control system. The absorber is experimentally demonstrated on a cantilevered beam. The experiments include an ex amination of the response of the absorber to an abrupt change in system parameters.

Journal of Intelligent Material Systems and Structures, Vol. 5, No. 4, 559-566 (1994)
DOI: 10.1177/1045389X9400500412
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 Journal of Intelligent Material Systems and StructuresHome page
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Home page
 Journal of Intelligent Material Systems and StructuresHome page
K. Cohen, T. Weller, J. Levitas, and H. Abramovich
An Adaptive Fuzzy Control Algorithm for Model-Independent Active Vibration Damping of Flexible Beam-Like Structures
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