Learning Forum

[AR]

Hello,

I am trying to carry out a harmonic response of a piezoelectric subjected to a pressure exerted by a prestressed screw. I have done the static structural analysis to apply the pretension to the bolt, but I don't know how to translate those results to a Coupled Field Harmonic or how to link them. Ansys doesn't let me to link the solution of the Static Structural with the Setup of the Coupled Field Harmonic. I need this last analysis to be able to apply an electric current to the piezoelectric (blue) and also obtain the impedance.

[ErKo]

Hi

This will available in the new release 2022 R1 (not possible in 2021 R2) which is out for supported users via the customer portal - not sure when the student version will be updated to 2022 R1 for downloading.
The way it is done in 2022 R1 is to connect a couple field static to a couple field harmonic system.
All the best
Erik

[nathansmith1314]

Hello,

 

Did this ever get solved? I am currently tryging to do this exact thing and I can't seem to make it work.
Any help is appreciated!

 

best,

 

Nathan

[nathansmith1314]

More over I would really like to just take the pretensioned components and use it in a coupled field harmonics analysis. 

[AR]

The truth is, I don't remember how I did the analysis. As Erik said, starting with the 2022 R1 release, you could use piezoelectric models directly in Ansys along with other analysis physics. You have to keep in mind that you have to use the "Couple Field" models available in the student version or top proffesional license (I thinck). 

I think you could do what you can see in the image below, which is combine the Static Couple Field with the Harmonic Couple Field. On the right, in the model properties, you can see the different physics models you can use (I think only two at a time). You actually select that later within the model in Analysis Settings.

I hope I've helped.