✦ LIBER ✦

SENSOR/ACTUATOR EQUATIONS FOR CURVED PIEZOELECTRIC FIBERS AND VIBRATION CONTROL OF COMPOSITE BEAMS USING FIBER MODAL ACTUATORS/SENSORS

✍ Scribed by D.C. SUN; L. TONG

Publisher: Elsevier Science
Year: 2001
Tongue: English
Weight: 239 KB
Volume: 241
Category: Article
ISSN: 0022-460X
DOI: 10.1006/jsvi.2000.3269

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✦ Synopsis

Vibration control of the composite beam integrated with curved piezoelectric "bers is investigated. Sensory and actuating equations of the curved piezoelectric "bers embedded in a composite slender beam are derived, and expressed in terms of line integrals. In addition, a new method for designing "ber modal sensors and modal actuators is presented by means of modulating the shapes of the curved piezoelectric "bers. The curvature shape of each modal sensor/actuator "ber can be determined by solving a di!erential equation. For a slender beam, an approximate solution is given. Based on the modal sensor "bers and modal actuator "bers, the modal control of the composite beam is performed independently. Finally, an illustrated example is given in which the e!ects of the curvatures of the "bers on the sensing signals are discussed.

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