July 22, 2024 at 7:21 pm
Simon-Olivier
Subscriber

 

Hi, 

Thank you for the reply.

I compare the ds file for a very simple model and the only change is my node numerotation and I don’t know why (same number of node/elements/quality statistics…).

Also, the change in the global matrix formulation stays the same:

 

  • With 2023 R1 version, tsymmetric global matrix
  • With 2023 R2 version,non- symmetric global matrix

But this time, since the model is very simple, I can get a solution in the 2 cases.

Is there a reason for matrix symetric/non-simmetric?

Thank you for your help

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