Vibration Control of Beams with Negative Capacitive Shunting of Interdigital Electrode Piezoceramics
2005 ◽
Vol 11
(3)
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pp. 331-346
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Keyword(s):
A pair of interdigital electrode (IDE) piezoceramics is used to simultaneously suppress multimode vibrations of a cantilevered beam. This is achieved by connecting the IDE piezoceramics in parallel to a negative capacitive shunt circuit. The governing equations of motion of an IDE piezo/beam system and associated boundary conditions are derived using the Hamilton principle. The obtained mathematical model is validated experimentally Attenuations ranging between 5 and 20 dB are obtained for all the vibration modes over the frequency range of 0-3000 Hz. The presented theoretical and experimental techniques provide invaluable tools for designing simple and effective passive vibration dampers for structures with closely packed modes.
2008 ◽
Vol 47-50
◽
pp. 137-140
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2019 ◽
Vol 11
(07)
◽
pp. 1950068
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