Analysis of unimorph piezoceramic patches on damped square shaped plate
Active damping using piezoelectric element is one of the effective techniques to counter vibration problems. A 3D finite-element model is developed as part of investigation for damping control. The piezoelectric patches are surface bonded on quadrilateral thin plate and supported with spring damp...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Trans Tech Publications, Switzerland
2013
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| Subjects: | |
| Online Access: | http://eprints.utem.edu.my/id/eprint/7457/1/Journal_AppliedMechanicsAndMaterial_NajibFKP.pdf http://eprints.utem.edu.my/id/eprint/7457/ |
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| Summary: | Active damping using piezoelectric element is one of the effective techniques to counter
vibration problems. A 3D finite-element model is developed as part of investigation for damping
control. The piezoelectric patches are surface bonded on quadrilateral thin plate and supported with
spring damper elements. The main goal of this paper is to investigate mechanical characteristics of
piezoceramic array on membrane and the effect of force excitation using small motor and electric
excitation on the system. The system setup produced small vibration displacement and does not
displace the plate beyond elastic strain region. The results show the linear behavior of piezoceramic
and the correlation between electric excitation, motor vibration and displacement at the centre of the
plate at different frequency range. The mode shapes and natural frequencies at low frequency
spectrum are also presented. Therefore, the results can be used as reference to develop damping
system with aid of piezoelectric patches. |
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