Static equilibrium

Hello Adams Community,

I am using Adams MaxFlex to run a nonlinear simulation.

I am generating the bulk data file in my code and importing the resulting `BDF` file into my model.

My model runs perfectly fine when I use a coarse mesh size like this image(the diameter of the circle is 4 cm):

But, as soon as I try a finer mesh size (dividing by 2) like this image, I get static equilibrium simulation convergence error(I don't change anything else about the model).

I tried to tweak the solver settings as it is suggested in this article:

simcompanion.hexagon.com/.../troubleshooting-static-equilibrium-simulations-kb8023521

I tightened and loosened the limits on translations (TLIMIT) and rotations (ALIMIT) while I relaxed the error, but had no success getting the simulation to converge. I increased the MAXIT value for convergence, but still no success.

Does anyone have any idea what might cause this problem?

Links (1)

https://simcompanion.hexagon.com/customers/s/article/troubleshooting-static-equilibrium-simulations-kb8023521

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0 Alexis Del Rio over 2 years ago

setting the imbalance to a very lage value makes no sense you are artificially modifying a setting without understanding what it is about. Yo need to play with all the settings not just one.

the very large force at initialisation is key to tell you there is something not right in the model

Yes it matters a lot to set static equil first, same as in real life
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0 Alexis Del Rio over 2 years ago

setting the imbalance to a very lage value makes no sense you are artificially modifying a setting without understanding what it is about. Yo need to play with all the settings not just one.

the very large force at initialisation is key to tell you there is something not right in the model

Yes it matters a lot to set static equil first, same as in real life
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