Boundary Conditions in SimSolid

Dency Dela Cruz

Hello,

I am trying to model a skid that is bolted on a concrete slab foundation. I need to perform a modal and a forced response analysis of the skid to assess vibration levels under dynamic loading at different equipment operating speeds.

As the skid is bolted onto a concrete slab at the perimeter only, the skid members should not be able to deflect downwards past the concrete slab, but should be able to move up (and separate from the slab). I have tried the following approaches:

1. I know that SimSolid has a separating contact feature, but I realize that this is not available for dynamic analysis, only in structural.
2. The roller support boundary condition prevents movement normal to the plane it is applied too hence it will prevent both upwards and downwards movement.
3. A spring support in SimSolid acts in both directions. Ideally, I would just want the springs to act in compression, but I know this is not yet available in SimSolid.

Are there any smart ways such that I can model a more accurate boundary condition with concrete slab foundations?

Thanks,

Dency

GirishM

Hi Dency, I don't believe this is possible at the moment, but we will look at implementing this functionality.