Composite Piezoelectric Transducer
Application ID: 503
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.
This application was built using the following:MEMS Module
The combination of COMSOL® products required to model your application depends on the physics interfaces that define it. Particular physics interfaces may be common to several products (see the Specification Chart for more details). To determine the right combination of products for your project, you should evaluate all of your needs in light of each product's capabilities, consultation with the COMSOL Sales and Support teams, and the use of an evaluation license.