Resonant vibration and heating of ring plates with piezoactuators under electromechanical loading and shear deformation |
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Authors: | I F Kirichok |
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Institution: | (1) S. P. Timoshenko Institute of Mechanics, National Academy of Sciences of Ukraine, 3 Nesterov St., Kyiv, Ukraine, 03057 |
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Abstract: | The bending vibration and dissipative heating of a viscoelastic isotropic ring plate with piezoceramic actuators under electromechanical
loading and shear deformation are studied by solving a coupled problem. The temperature dependence of the complex characteristics
of the passive and piezoactive materials is taken into account. The nonlinear problem of thermoviscoelasticity is solved by
time stepping with discrete orthogonalization used at each iteration to integrate the equations of elasticity and using an
explicit finite-difference scheme to solve the heat-conduction equation with a nonlinear heat source. The effect of shear
deformation, fixation conditions for the plate, the geometry of the piezoactuators, and the dissipative-heating temperature
on the active damping of the forced vibration of a circular plate subject to uniform transverse monoharmonic compression is
studied
Translated from Prikladnaya Mekhanika, Vol. 45, No. 2, pp. 124–132, February 2009. |
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Keywords: | forced vibration dissipative heating piezoactuator temperature active damping |
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