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Two SPCD to one

Altair Forum User

Hello,

I want to transfer Displacements from a model to a submodel.

I used 'fields' to Import the .op2 file and then Realization to create SPCD's (one for the Displacement(x,y,z) and one for the Rotation(x,y,z)). I used the Card Image SPCADD to combine both.

Then i created SPC load collector for all six DOF at the nodes where the SPCD's are.

Then i created a load Step and put at subcase Definition SPC to SPC and SPCD to LOAD.

If i start calculation i get the error: '* ERROR # 1908 *** Case Control data LOAD=4 is not referenced by any bulk data relevant for used subcase type.' (LOAD 4 is the SPCADD load collector)

So is it not possible to Combine SPCD's with SPCADD?

How can I do it instead?

If it helps i can upload the file?

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Altair Forum User

Hi @Oli

SPCADD does not support SCPDs neither LOADADD does, unfortunately.

Altair Forum User

So, how can I transfer all 6 DOF (displacements and rotations) from a model to a submodel?

Altair Forum User

@Oli

Can you shows us with a picture?

Altair Forum User

See the Picture below.

I just masked some SPC/SPCD's to show them all with their DOF's but actually at each Node are 2 SPCD's (Displacement and Rotation) and the SPC with all six DOF's

<?xml version="1.0" encoding="UTF-8"?>

Altair Forum User

Hi @Oli

One way is to have both SPCDs in one load collector or run an analysis and get the grid point force and then use the LOAD card image to add forces from both SPCDs