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Spherical Piezoacoustic Transducer

Application ID: 6210

This tutorial provides a step-by-step instruction to setup a fully-coupled 3D structural-acoustic interaction problem. Interaction between a vibrating spherical piezoelectric structure with the surrounding fluid media is considered. The piezoelectric material PZT-5H from the materials library is used. Instructions on how to create a radially polarized piezoelectric material in spherical coordinates is provided. Symmetry planes are used to obtain a reduced modeling geometry. The effect of excitation frequency on model geometry and mesh is discussed. Perfectly Matched Layer is used for modeling an infinitely extended air domain. The coupled multiphysics is solved as a stationary problem by considering frequency domain analysis.

This application was built using the following:

Acoustics 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.