CAE Software【Femtet】Murata Software Co., Ltd.
Example2 Harmonic Analysis
General
-
The model is a piezoelectric disc. The AC voltage applied across the top and bottom faces generates the vibration.
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The device’s displacement is solved.
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Unless specified in the list below, the default conditions will be applied.
Analysis Space
|
Item |
Settings |
|
Analysis Space |
3D |
|
Model unit |
mm |
Analysis Conditions
|
Item |
Settings |
|
Solver |
Piezoelectric Analysis [Rayleigh] |
|
Analysis Type |
Harmonic analysis |
|
Options |
N/A |
The harmonic analysis tab is set up as follows.
|
Tabs |
Setting Item |
Settings |
|
Harmonic analysis |
Frequency |
Minimum: 1000[Hz] Maximum: 1000[Hz] |
|
Step |
Select “Linear step” Division number: 0 |
Model
The piezoelectric disc (piezo) is placed on top of the aluminum disc (metal).
The voltage is specified on the top and bottom faces.
Body Attributes and Materials
|
Body Number/Type |
Body Attribute Name |
Material Name |
|
0/Solid |
metal |
001_Al * |
|
1/Solid |
piezo |
000_P-4 * |
* Available from the Material DB
Boundary Conditions
|
Boundary Condition Name/Topology |
Tab |
Boundary Condition Type |
Settings |
|
earth/Face |
Electric |
Electric wall |
Voltage specified: Voltage 0[V] |
|
hot/Face |
Electric |
Electric wall |
Voltage specified: Voltage 1[V] |
Results
The gradation contour of the displacement is shown below.
The piezoelectric disc’s vibration causes the distortion on the aluminum disc.