Hi,
As part of a larger project, I am unable to connect an eccentric beam element with a shell element with constrains, so I created a small model to test it. Unfortunately, the connection doesn’t work in this case either, and I can’t figure out why. The beam element always fails, and I get the following error message:
- There are 137 rigid body modes in the system. This means some parts can move freely without causing deformation.
Try to use the ‘Eigen Modes’-component and activate the display of local coordinate axes: The first eigen-mode will be the rigid body motion.
If this does not help, check whether you have a pinned support directly attached to a hinge. A hinge introduces an extra node which may cause the problem.
When analyzing a flat shell structure one has to lock the rotation perpendicular to the plate in at least one node.
I have tried using the beam join, beam join agent, and line joint components, but none of them seem to work.
Could someone help me identify the issue in my code?
Thanks,
Shell_beam_joint.gh (41.1 KB)
Nándor
