Removal of rigid body motion for extraction of displacements

prasad.guduguntla.external over 3 years ago

Hello,

I got a structure with different substructures assembled to it.

All the structures are loaded and i am interested in displacements of substructures only (that means the displacements causing due to primary structure are need to be excluded).

Any suggestions would be helpful.

Thanks

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0 Zach Fata over 2 years ago

I believe it just does a simple subtraction of the components. The results will output based on the global coordinate system of each grid but it is okay if the reference grid and node of interest are in different systems (the logic handles this).

I think there are some issues with the implementation for rotational rigid body motion. There is an existing enhancement request NAS-42893. This may be causing the discrepancy
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0 Zach Fata over 2 years ago

I believe it just does a simple subtraction of the components. The results will output based on the global coordinate system of each grid but it is okay if the reference grid and node of interest are in different systems (the logic handles this).

I think there are some issues with the implementation for rotational rigid body motion. There is an existing enhancement request NAS-42893. This may be causing the discrepancy
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