OpenSim tutorial - static optimisation crushes

[Ran Sopher]

Hi all,

I am very new to OpenSim and currently trying to play with the models provided with the download (e.g. gait2354 and gait2359), and to apply what I have learnt from the tutorials.
Every time I am trying to run static optimisation OpenSim crushes. After a few trials I am quite sure that the problem is in the GRF data (I use the file provided by OpenSim - subject01_walk1_grf) - when I try running static optimisation without it, it works perfectly.
Could anybody please recommend what I should do?

Kindest regards,
Ran

[jimmy d]

Hi Ran,

Have you included an 'additional force set file' to the setup? Trying to run static opt from the existing files in the tutorial, which doesn't include a residual actuators file, will lead to a crash.

If you download the StaticOpt_JointReaction.zip example (from the OpenSim download page) the folder contains an example file (gait2392_SO_weak_Residual_Actuators.xml) that can be used.

Hope that helps,
-james

[Ran Sopher]

Working now. Thank you so much!