Obtain global stiffness matrix

Federico Bosi

Hello,

How can we obtain the global stiffness matrix of a component in Simlab? 

Best regards and thank you

Adriano_Koga

in SL, as far as I know, the command is not there yet, but you could add it manually as 'Text Data' to the solver deck, ath the input/ouput section.

OUTPUT,MATRIX

 

https://2021.help.altair.com/2021/hwsolvers/os/topics/solvers/os/output_io_r.htm

 

Federico Bosi

Thank you very much, it worked I think. The problem is that the file is too large (45 Gb), maybe a better approach is to output only specific nodes? Is that possible?

 

Adriano_Koga

Federico Bosi said:

Thank you very much, it worked I think. The problem is that the file is too large (45 Gb), maybe a better approach is to output only specific nodes? Is that possible?

 

There are a few options in the documentation.

https://2021.help.altair.com/2021/hwsolvers/os/topics/solvers/os/output_io_r.htm

 

But indeed, it might get very large.

Try requesting it in Sparse format, to eliminate the zeros.

Maybe it would reduce it.