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Inverse Dynamics Errors?
Posted: Thu Sep 18, 2008 3:38 pm
by lisaness12
Does anyone know what to do when you run an inverse dynamics analysis and obtain
-1.#IND0000000000000000 and
-1.#INF0000000000000000
are your results for your joint torques? How can you fix this problem?
Thank you
RE: Inverse Dynamics Errors?
Posted: Thu Sep 18, 2008 8:49 pm
by reill111
This most likely means there is an inconsistency in one of your motion files. Look through those and you will probably find a spot where there is data missing for just a frame or two, resulting in errors like #INF or #NaN.
RE: Inverse Dynamics Errors?
Posted: Thu Sep 18, 2008 9:00 pm
by lisaness12
Thank you for your response. I checked it out and that doesn't seem to be the problem. Additionally I am getting those results for the entire motion- Ack
Any other ideas what might be going on?
Thanks again!
RE: Inverse Dynamics Errors?
Posted: Sun Sep 21, 2008 2:12 pm
by aymanh
Lisa,
If you're doing dynamics you better have good mass/inertial properties assigned.
Good luck,
-Ayman