static optimization problems

[cui weiling]

hi,
everyone
I have two problems need your help
1. why the value of FY is so high at the beginning of caculation?(PS. the seem situation appeared ID results)
2. why ligament forces which plot from force file are so strange after OS ?

[Dimitar Stanev]

1. If they are high enough (>40N) then the ground reaction forces are missing or not applied correctly. You can look at the gait2354 dataset (in the model folder) and the grf setup.
2. Ligaments are sensitive to the resting length parameter.

[cui weiling]

First,thanks for your replay.
I have checked the gound force applying calcns following your suggestions but no gain anything
following pictures are results and I need your deep help.
[img]OS.PNG[/img]
[img]ligament.PNG[/img]
Thanks again.

[cui weiling]

First,thanks for your replay.
I have checked the gound force applying calcns following your suggestions but no gain anything
following pictures are results and I need your deep help.


Thanks again.