Composite Piezoelectric Transducer
This example shows how to set up a piezoelectric transducer problem following the work of Y. Kagawa and T. Yamabuchi.The composite piezoelectric ultrasonic transducer has a cylindrical geometry that consists of a piezoceramic layer, two aluminum layers, and two adhesive layers. The system applies an AC potential on the electrode surfaces of both sides of the piezoceramic layer.
The goal is to compute the admittance for a frequency range around the four lowest eigenfrequencies of the structure.
This is a benchmark model for ultrasonic transducer simulation but also a good starting point for simulations of SAW and BAW filters.
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Boundary plot of the z-displacement, and input admittance as a function of excitation frequency. |
Engineering Fields
- Multiphysics
- Piezoelectric Components
Application Areas
- MEMS