Piezoelectric in Ansys Workbench
Piezoelectric in Ansys Workbench
(OP)
I have read Ansys workbench training material (Solving Piezoelectric with commands objects-included at the bottom some commands).
Question(s):
How to align properly piezo material properties with respect to cylinderical coordinate?
How to link the properties to the cylindrical coordinat?
What kind of meshing should be used in order to produce a compatible element? For example, in the training they used sweep mesh then they replaced the element with solid226
What would be the meshing for 2d analysis? so as to use plane223?
How to use the model as an actuator? How to use the model as a sensor?
The training material used the following command lines to change the problem to piezo
under the piezoelectric body (in mechanical model tree) the following command is added:
et,MATID,226,1001
mp,perx,MATID,804.6
mp,pery,MATID,804.6
mp,perz,MATID,659.7
tb,piez,MATID
tbdata, 3,-4.1 ! e13 piezoelectric constant
tbdata, 6,-4.1 ! e23 piezoelectric constant
tbdata, 9,14.1 ! e33 piezoelectric constant
tbdata,14,10.5 ! e52 piezoelectric constant
tbdata,16,10.5 ! e61 piezoelectric constant
Notice the use of sweep mesh on piezo bodies
Then the following command (as boundary condition):
d, Neg, volt, 0
d, Pos, volt, 10
cp, next, volt, Pos
where Neg and Pos are named selections representing Negative and Positive.
Again I'm new here. Please be patient with me.
Question(s):
How to align properly piezo material properties with respect to cylinderical coordinate?
How to link the properties to the cylindrical coordinat?
What kind of meshing should be used in order to produce a compatible element? For example, in the training they used sweep mesh then they replaced the element with solid226
What would be the meshing for 2d analysis? so as to use plane223?
How to use the model as an actuator? How to use the model as a sensor?
The training material used the following command lines to change the problem to piezo
under the piezoelectric body (in mechanical model tree) the following command is added:
et,MATID,226,1001
mp,perx,MATID,804.6
mp,pery,MATID,804.6
mp,perz,MATID,659.7
tb,piez,MATID
tbdata, 3,-4.1 ! e13 piezoelectric constant
tbdata, 6,-4.1 ! e23 piezoelectric constant
tbdata, 9,14.1 ! e33 piezoelectric constant
tbdata,14,10.5 ! e52 piezoelectric constant
tbdata,16,10.5 ! e61 piezoelectric constant
Notice the use of sweep mesh on piezo bodies
Then the following command (as boundary condition):
d, Neg, volt, 0
d, Pos, volt, 10
cp, next, volt, Pos
where Neg and Pos are named selections representing Negative and Positive.
Again I'm new here. Please be patient with me.





RE: Piezoelectric in Ansys Workbench
The stress was around 14
After adding the material properties
The stress become 3.e+13
That is by just adding these lines
et,MATID,226,1001
mp,perx,MATID,804.6
mp,pery,MATID,804.6
mp,perz,MATID,659.7
tb,piez,MATID
tbdata, 3,-4.1 ! e13 piezoelectric constant
tbdata, 6,-4.1 ! e23 piezoelectric constant
tbdata, 9,14.1 ! e33 piezoelectric constant
tbdata,14,10.5 ! e52 piezoelectric constant
tbdata,16,10.5 ! e61 piezoelectric constant
RE: Piezoelectric in Ansys Workbench
It is unfortunate that no body uses command snippet where I am. It is also unfortunate that it is hard to find those who worked in the same area.
RE: Piezoelectric in Ansys Workbench
I work in this area,a short time
3D element is better than 2D element beacuse of their precision,but both of them applicable.
for actuator behavior ,apply voltage on piezo layer,then give strain response,for sensor ,apply force on this,then give voltage or charge or admittance response of this,with harmonic analysis.
I have a question about circuit for piezo system,can you help me?