Vault karamba3d rigid body

Hi everyone,
I have this error when I try to analyze the model.
I read some other topics with rigid body modes but I couldn’t understand how to deal with it in my file.
vault_gh_karamba.gh (91.2 KB)

  1. There are 138 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.

Thanks in advance for your help ^^

Hi,

you have alot of small and duplicate lines here, also the mesh is a bit messy in this region. Therefore Karamba gives you these errors.

Hi @matttam,
Thanks for your answer.
How did you do to display the mesh as it ?
Did you know if those errors (rigid body modes) change a lot the values when looking to the displacement ?
And did you know how can I remove the duplicates lines ?

Sorry I am quite a beginner ^^
Thanks in advance