S Behrens et al 2003 Smart Mater. Struct. 12 18 doi:10.1088/0964-1726/12/1/303
A broadband controller for shunt piezoelectric damping of structural vibration
S Behrens1, A J Fleming and S O R Moheimani
Show affiliationsIn this paper a broadband active shunt technique for controlling vibration in piezoelectric laminated structures is proposed. The effect of the negative capacitance controller is studied theoretically and then validated experimentally on a piezoelectric laminated simply supported plate. The 'negative capacitance controller' is similar in nature to passive shunt damping techniques, as a single piezoelectric transducer is used to dampen multiple modes. While achieving comparable performance to that of the passive shunt schemes, the negative capacitance controller has a number of advantages. It is simpler to implement, less sensitive to environmental variations and can be considered as a broadband vibration absorber.
- PACS
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46.40.Ff Resonance, damping and dynamic stability
45.80.+r Control of mechanical systems
85.50.-n Dielectric, ferroelectric, and piezoelectric devices
- Subjects
- Dates
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Issue 1 (February 2003)
Received 22 May 2001, in final form 20 August 2002
Published 10 January 2003
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A broadband controller for shunt piezoelectric damping of structural vibration
S Behrens et al 2003 Smart Mater. Struct. 12 18
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