Hello,
i have an assembly that you can see at the picture attached to this thread. The problem is, that the rods are connected with a symmetry constraint. The global contact is "bonded" and the result looks very strange. After changing to "no penetration" the result looks more realistic. The rods are connected to the plate with a "bonded" contact.
I have tried serveral things but nothing works. After reducing the plate thickness in several steps, the simulation with bonded contact works. I dont understand the problem. In the picture you can see the same simulation with a difference of 1mm in thickness. In "no penetration" simulation it works always.
Please excuse the bad english. Its not my native language.
thanks
symmetry will not connect parts, it is a boundary condition. I get that maybe language is an issue here. I am not sure I really understand what you are after but here is a rip at it...If you are trying to allow rotation between the vertical rods and the plate you need a spherical connector (I think a bearing connector properly done might work here) or spherical contact surfaces with no penetration. Your bearing can't be just a short cylinder with this approach - it needs to physically mimic the bearing. I suspect this is why when you make the plate thin it gives you what you want since the plates bending stiffness is so low it approximates the flexibility you are after.