Error while creating the StiffnessMatrix using DMIG

Hi,

i am trying to extract a StiffnessMatrix of a whole Car Model using DMIG.

While creating the Model I followed the Tutorial: OS-2070_ Topology Optimization of a Reduced Model using DMIG

when i start the Analysis to get the .Pch Data there is an Error:

*** ERROR # 826 ***
Invalid subcases have been used in this ASET run.
In ASET run, all subcases must have the same SPC and MPC set.
Subcase 1 has SPC set 1
Subcase 2 has prepaset set 2

Does anybody know, how i can fix the Error?

Greets

Find more posts tagged with

English

OptiStruct

Accepted answers

All comments

Altair Forum User

Hi Mak,

Please share the model file.

Altair Forum User

Hi Prakash,

i am not allowed to send you the whole model.

Is it possible to send just some screenshots?

If yes, let me know, which screenshots you need.

Altair Forum User

Hi Mak,

From the erorr message I can make out that you are using two sets of ASETs for two subcases which is not allowed according to error.

So you need one ASET

Altair Forum User

Hi Mak,

The model has SPCs and loads which are not seen.

Please refer to following post which has an example model for the same