topic Bracket simulation in Robot Structural Analysis Forum

Bracket simulation

Anonymous — Wed, 22 Mar 2017 09:51:10 GMT

Hello I would like to ask, if could you help me to simulate steel bracket (support) in Autodesk Robot? I attached bracket drawing. I think I have to draw it in 3D in AutoCad and import it to Robot, but maybe there is other way to do it?

Best Regards
Jar

Re: Bracket simulation

Rafacascudo — Wed, 22 Mar 2017 17:28:34 GMT

You could do it entirely in Robot with no problems using Shell structure type

Re: Bracket simulation

Anonymous — Wed, 22 Mar 2017 17:49:18 GMT

Could you give me some tips or make some example file? - I know, I'm asking too much, I don't know how to start with it.

Thank you

Re: Bracket simulation

Rafacascudo — Wed, 22 Mar 2017 22:18:51 GMT

Screencast video attached. Recorded live , no rehearsal

So some mistakes during modeling , sorry

1- Used bars and translation +drag to generate the panel contours . This is my favorite way of doing , because avoids "snap to (wrong) point" errors ,which can cause lots of meshing problems in the future.

Watch excelent meshing webinars (1 and 2) on Build your Robot Structural Analysis IQ - YouTube

2- I Forgot to delete the "construction " bars , and this was giving the instabilities type 2 on the analysis messages . 2nd video will show the correction.

3- a- Correct supports for bolts are in-plane full supports (Uy ,Uz) and perpendicular to plate (Ux) with uplift on negative X direction (only tension on the bolt) .

b- for the Plate/beam/wall , only bearing "against" the wall (support by contact) ,so it is Ux support only with uplift on positive X direction. 2nd video will also show this correction.

Instability type 3 ,in this case ,can be ignored.

Model is attached

Re: Bracket simulation

Rafacascudo — Wed, 22 Mar 2017 22:16:22 GMT

Correction Screencast video attached

For Artur ,Rafal ,Pawel ,

As you can see in the video , my "animated deformation is not working. It goes to the actual deformed shape and stays there.

Also a sugestion , it would be good if we can have a map showing the plate reactions as we have for elastic ground on plate thickness definition