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The elasto dynamic wave propagation in a piezoelectric plate immersed in fluid is
studied based on the three dimensional theory of linear elasticity. Three displacement
potential functions are used to uncouple the equations of motion in radial, circumferential and
axial directions. The frequency equations that include the interaction between the plate and
fluid are obtained by the perfect-slip boundary conditions using the Bessel function solutions.
The numerical calculations are carried out for the material PZT-4 and the computed nondimensional frequency, phase velocity and attenuation coefficient are plotted as the dispersion
curves for the immersed plate with different velocity ratio.
Keywords: olid-fluid interface; wave propagation; vibration of doubly connected plate; plate immersed in fluid; sensors; actuators. |
full paper (pdf, 1360 Kb)