<t>Ayman,<br/> Thank you for your prompt reply, your explanation of the “_q” and “_u” data files is completely satisfactory: it explains the results I was seeing in those files well.<br/> <br/> As for the CMC issue, I have tried the 2.3.1 version, and it seems like a better setup, but I am still rec...

<t>Ayman,<br/> Sorry for the long pause. I am using OpenSim 2.2.1 with the Delft Shoulder and Elbow Model by Blana et al. I did not run RRA, and at this point I am have not placed any external loads on the model. I have left everything but "Reduce Residuals" as the default values (on all panes), how...

<t>Thanks Ayman, by locking coordinates and thereby reducing the number of degrees of freedom, as you suggested, the Static Optimization completed. Now I've moved on to CMC and have persistently been getting an error:<br/> <br/> [quote]<br/> Setting optimizer convergence criterion to 1e-006.<br/> Se...

<t>I am experiencing an issue when running the Static Optimization tool, it gets stuck right after printing "Executing the analyses from -2e-007 to 0.99999..." to the message window (or the command line - I've tried both), and the analysis progress bar stays at 0%. To be clear, I receive no messages...

<t>Hi all,<br/> I am trying to run the Forward Dynamics tool with no muscle activation. To accomplish this I have overwritten previously generated "controls" and "states" files with columns containing only zeros. When this did not work (muscle forces were still reported and the model still moved und...

<t>I have often received an identical message when attempting to run the tools (i.e. IK, ID, etc.). I cannot help you solve the issue, although I would suggest that you say something about the specific machine that you are receiving the error on. I've been getting this error message under Windows 7 ...

<t>I am trying to introduce a variable external torque to a joint in a model, with the intent of causing flexion without muscle activation. I am attempting to use the "External Loads" feature (I do not think a torque actuator would work...), but I cannot tell what point the specified torque is being...