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On the feedback structure of wideband piezoelectric shunt damping systems

S O Reza Moheimani, Andrew J Fleming and Sam Behrens

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This paper studies the feedback structure associated with piezoelectric shunt damping systems and introduces a new impedance structure for multi-mode piezoelectric shunt damping. The impedance is shown to be realizable using passive circuit components and digital implementation of the associated admittance transfer function is discussed.


PACS

46.40.Ff Resonance, damping and dynamic stability

07.07.Df Sensors (chemical, optical, electrical, movement, gas, etc.); remote sensing

45.80.+r Control of mechanical systems

77.84.-s Dielectric, piezoelectric, ferroelectric, and antiferroelectric materials

07.07.Tw Servo and control equipment; robots

85.50.-n Dielectric, ferroelectric, and piezoelectric devices

Subjects

Electronics and devices

Instrumentation and measurement

Condensed matter: structural, mechanical & thermal

Dates

Issue 1 (February 2003)

Received 22 October 2001, in final form 17 October 2002

Published 10 January 2003



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