The top surface of the piezoceramic is electroded

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Unformatted text preview: 390 ANSYS Verification Manual . ANSYS Release 9.0 . 002114 . © SAS IP, Inc. VM175: Natural Frequency of a Piezoelectric Transducer Overview Reference: D. Boucher, M. Lagier, C. Maerfeld, “Computation of the Vibration Modes for Piezoelectric Array Transducers Using a Mixed Finite Element Perturbation Method”, IEEE Trans. Sonics and Ultrasonics, Vol. SU-28 No. 5, 1981, pg. 322, table 1. Analysis Type(s): Mode-frequency Analysis (ANTYPE = 2) Element Type(s): 3-D Coupled-Field Solid Elements (SOLID5) Input Listing: vm175.dat Test Case A piezoelectric transducer consists of a cube of PZT4 material with its polarization direction aligned along the Z axis. Electrodes are placed on the two surfaces orthogonal to the polarization axis. Determine the first two coupled-mode (breathing-type deformation) natural frequencies for the short circuit (resonance) case and the open circuit (anti-resonance) case. Figure 175.1 Piezoelectric Transducer Problem Sketch Material Properties ρ = 7500 kg/m3 See Constitutive Matrices Geometric Properties = .02 m Constitutive Matrices PZT4 Dielectric M...
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This note was uploaded on 12/09/2010 for the course DEPARTMENT E301 taught by Professor Kulasinghe during the Spring '09 term at University of Peradeniya.

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