CAE Software【Femtet】Murata Software Co., Ltd.
Example6 Axisymmetric Analysis
General
-
An axisymmetric piezoelectric vibrator is analyzed.
-
Harmonic analysis is performed in the frequency range of 1 to 100[kHz]. The impedance of the device is solved.
-
Unless specified in the list below, the default conditions will be applied.
Analysis Space
|
Item |
Settings |
|
Analysis Space |
Axisymmetric |
|
Model unit |
mm |
Analysis Conditions
|
Item |
Settings |
|
Solvers |
Piezoelectric Analysis [Rayleigh] |
|
Analysis Type |
Harmonic analysis |
|
Options |
N/A |
The harmonic analysis tab is set up as follows.
|
Tab |
Setting Item |
Settings |
|
Harmonic analysis |
Frequency |
Minimum: 1×10^3[Hz] Maximum: 100×10^3[Hz] |
|
Step |
Select “Linear step by division number”. Division number: 200 |
|
|
Sweep Setting |
Select Fast sweep. Tolerance: 1.0×10^-3 |
Model
The model is symmetric with reference to x = 0 axis. It consists of sheet bodies.
The “displacement” boundary condition is set on the edge topology.
Body Attributes and Materials
|
Body Number/Type |
Body Attribute Name |
Material Name |
|
0/Sheet |
metal |
104_Stainless_steel * |
|
1/Sheet |
piezo |
000_P-4 * |
|
2/Sheet |
metal |
104_Stainless_steel * |
* 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] |
|
ux/Edge |
Mechanical |
Displacement |
UX = 0.0[m] |
Results
The calculated impedance characteristics is shown below.
There are 4 resonances exhibited in the frequency range of 1 to 100[kHz].