Mesh-Load Help

Hi everyone!

I was trying to do some experiments with Karamba3d plugin and I wanted to test the Mesh-Load component.

I encountered an error linked to the BeamId, I'll explain: when the BeamId is set to a random name the component just uses 3 of the 5 total beams (img 1), and I don't know why.

I tried to change some parameters and I found that if I name the beams with the id 1 everything works (img 2). Am I missing something or is it just a bug?

Thank you for help

Attachments:

Carico.gh, 28 KB
Carico.3dm, 175 KB

Replies to This Discussion

Permalink Reply by Karamba3D on October 15, 2014 at 12:22pm

Hi GiogioTn,

the default behavior of the MeshLoad-component in karamba 1.0.5 should be that all beams can receive a part of the load as uniformly distributed line-loads. If you supply a beamID to the MeshLoad-component which does not exist, no line loads should be generated. Thus the behavior shown in the second image is not correct and is a bug in Karamba.

The MeshLoad-component generates loads on beams by first transferring the surface load to the vertices of the mesh. From there the loads get transferred to dummy points along the beam axes. Your mesh for applying the loads is very coarse so only the endpoints of the beams receive loads. Which beam grabs which part of the equivalent nodal loads is then ill defined. You will get better results when you refine the mesh for placing the loads.

Best,

Clemens

Permalink Reply by GiogioTn on October 16, 2014 at 6:41am