Using force load instead of displacement/velocity.
Using force load instead of displacement/velocity.
(OP)
Hello, i have problem with my simulation in Abaqus CAE. I would like to simulate the following case:
-Beam is fixed to the ground
-Cylinder is situated above the beam
-Contact between beam and cylinder is set
-Cylinder moves down
-Beam deflects

Everything looks fine, when i use BC-Displacement as load. Cylinder moves down, and beam deflects.

But now i would like to move the cylinder by applying a force to it, when i apply force to cylinder instead of displacement i get error while simulating: "Too many attempts made for this increment"
I tried also to perform dynamic simulation instead of static and when i apply only the force to cylinder, cylinder doesn't move at all.

Is it possible at all to simulate such cases without setting up motion parameters like displacement, velocity ? I tried also tu set only gravity, but cylinder still didn't move.
Thank you in advance.
-Beam is fixed to the ground
-Cylinder is situated above the beam
-Contact between beam and cylinder is set
-Cylinder moves down
-Beam deflects

Everything looks fine, when i use BC-Displacement as load. Cylinder moves down, and beam deflects.

But now i would like to move the cylinder by applying a force to it, when i apply force to cylinder instead of displacement i get error while simulating: "Too many attempts made for this increment"
I tried also to perform dynamic simulation instead of static and when i apply only the force to cylinder, cylinder doesn't move at all.

Is it possible at all to simulate such cases without setting up motion parameters like displacement, velocity ? I tried also tu set only gravity, but cylinder still didn't move.
Thank you in advance.





RE: Using force load instead of displacement/velocity.
If you can't figure it out from that come back and I will help with the solution.
RE: Using force load instead of displacement/velocity.
As to the explicit model I'm at a loss as to why that wouldn't solve unless your time increment is not long enough to calculate any movement e.g. if you only solve for 1 second yet it takes 2 seconds to actually make contact. For such models its usually best to place the cylinder as close as possible to the beam to save on solve time.