Home / Examples / Piezoelectric Analysis [Rayleigh] / Example 1: Static Analysis

Example 1: Static Analysis

General

• The model is a bar consisting of two piezoelectric materials which are piggybacked and reversely polarized.
   

• The device's displacement is solved.
   

• Unless specified in the list below, the default conditions will be applied.
   

• Obtain this session's project file. (Right-click and choose 'Save link as')




• Results will vary depending on Femtet version and the PC environment.

 

Analysis Space

Item	Settings
Analysis Space	3D
Model Unit	mm

 

Analysis Conditions

Item	Settings
Solver	Piezoelectric Analysis [Rayleigh]
Analysis Type	Static Analysis
Options	N/A

Model

Two solid bodies are created. They are named "upper" and "lower", and reversely polarized.

One end is mechanically fixed. The electric potentials of top and bottom faces are 10 [V] and 0 [V], respectively.

Body Attributes and Materials

Body Number/Type	Body Attribute Name	Material Name
0/Solid	upper	000_P-4 *
1/Solid	lower	000_P-4 *

* Available from the material DB

 

The polarizations are set as follows.

Body Attribute Name	Tab	Settings
upper	Direction	Vector Specified: Vector: X=Y=0.0, Z=1.0
lower	Direction	Vector Specified: Vector: X=Y=0.0, Z=-1.0

Boundary Conditions

Boundary Condition Name/Topology	Tab	Boundary Condition Type	Settings
fix/Face	Mechanical	Displacement	Select all UX, UY, and UZ. UX=0, UY=0, UZ=0
earth/Face	Electric	Electric Wall	Electric Potential Specified: Electric Potential 0 [V]
hot/Face	Electric	Electric Wall	Electric Potential Specified: Electric Potential 10 [V]

Results

The gradation contour of the displacement is shown below. The contour indicates the magnitude of displacement.