CMC failure, a cry for help.
Posted: Mon Jan 01, 2024 5:41 am
It sounds a bit dramatic, but I really am stuck with my CMC project.
I created a few opensim-issues (see issue #3522) and asked on this forum,
but the problem still is not solved.
I created a model and trajectory as simple as possible that fails.
This is both on Windows and Linux.
The model consist of not much more than a Pinjoint and one Balljoint: The trajectory is keeping the model mostly still, but after a few seconds it will start to behave very strange.
Shouldn't we be able to explain why such a model is failing?
I think it is interesting to understand why CMC fails with such simple models.
Is it CMC or is it me. Why doesn't the PD-control part kick in?
Can somebody please confirm that this model behaves as mentioned here?
Please help, Sietse
I created a few opensim-issues (see issue #3522) and asked on this forum,
but the problem still is not solved.
I created a model and trajectory as simple as possible that fails.
This is both on Windows and Linux.
The model consist of not much more than a Pinjoint and one Balljoint: The trajectory is keeping the model mostly still, but after a few seconds it will start to behave very strange.
- Test4.png (194.66 KiB) Viewed 18712 times
- Run_away.png (44.85 KiB) Viewed 18712 times
I think it is interesting to understand why CMC fails with such simple models.
Is it CMC or is it me. Why doesn't the PD-control part kick in?
Can somebody please confirm that this model behaves as mentioned here?
Please help, Sietse