3D Transducer model (left) and maximum acoustic pressure field (right)
Model Description
Transducer design is one of the many applications that OnScale's core solvers are tailored for. From simple monolithic piezoelectric transducers to complex curved 1-3 piezocomposite array, OnScale can handle it.
As a demonstration, here is a 3D simulation of a simple transducer submerged in water. Symmetry boundary conditions are used to simplify the CAD geometry and model size to reduce solve time. The transducer is driven with a piezoelectric load applied across the piezoceramic material.
Material Assignments
Parametric Variables
The base CAD model was created in Onshape and allows the following design variables to be adjusted. By default the piezoelectric thickness, piezoelectric radius, and matching layer thickness are added as configuration variables for quick access through the Configuration Panel in Onshape.
| Parametric Variable | Description | Default Value |
|---|---|---|
| pzt_thick | Thickness of piezoelectric layer | 4 mm |
| pzt_rad | Radius of piezoelectric layer | 10 mm |
| match_thick | Thickness of matching layer | 2 mm |
| back_thick | Thickness of backing layer | 14 mm |
| back_rad | Radius of backing layer | 12 mm |
| housing_offset | Offset housing distance | 10 µm |
Outputs
Here are a list of the types of outputs to expect from this model:
- Electrical Impedance
- Mode Shapes (Harmonic Analysis) of base design
- Maximum Acoustic Pressure
Post Processor Outputs
Runtime Statistics
| Model size | 7017500 elements |
| Solve Time | 110 s (4 CPU) |
| Core Hours | 0.1219 |
| Memory Usage | 850 MB |
| Recommended CPU Configuration | 4 CPU |
CAD Project File
The following project file is required to run this model:
The base CAD model is publicly available to view and copy through Onshape:
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