Learning Forum

[AYIR]

Hi,

I am trying to use PiezoAndMems ACT extension to solve a thermoelectric structural analysis on a deforming contact (contact size changes by both pressure and temperature). I encountered two problems:

1- Every time that I close the file and reopen it again the workbench does not recognize the features I used from the ACT extension! (The ACT extension is set to load as default).

2- Every time I add the voltage to the analysis it cannot be solved and it proposes changing a line in the main code! I have done the same simulation (at least for the thermoelectric part) in the thermal-electric analysis system of Workbench and it works fine!

I would appreciate it if someone could help me with these.

Thanks,

[Karthik R]

Hello Ayir,

I'm moving this question to structural mechanics thread for better visibility. Hopefully, structural mechanics experts can answer this one for you.

Thank you.

Best Regards,

Karthik

[Sandeep Medikonda]

Ayir,

  Is loading your ACT extension every time you open the model working?

  As for the issue with the voltage BC, what is the complete text of the message that proposes changing a line in the main code? Can you post a snapshot?

Regards,
Sandeep

[AYIR]

Hi Sandeep,

I set the ACT extension to "load as default" mode so it is loaded every time I open the model.

Here is one of the errors I got:

 *** ERROR ***                           CP =      39.719   TIME= 16:11:48
 Degree of freedom VOLT at node 14921 is both in MPC contact elements   
 and a slave degree of freedom of coupled set 2, which may cause a      
 problem.  Please replace the command:                                  
  CP,2,VOLT,12421,14921                                                 
 with the command:                                                      
  CE,next,0.0,14921,VOLT,-1.0,12421,VOLT,1.0.                           

The rest of the errors are similar to this one.

Regards,

Al