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Old 08-07-2014, 07:00 AM
hmg0115 hmg0115 is offline
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Join Date: Apr 2013
Posts: 7
Default Muscle recruitment solver problem

my name is hmg and I am new at AnyBody. To calculate the driver‘s force, I try to make an “Driver Model” based on the “SeatedModel”. But if I let the “InverseDynamics” run I get this Error:
ERROR(OBJ.MCH.MUS4) : D:/w..t/AMS/A..t/A..0/A..n/E..s/0..5/Driver.main.any : Study.InverseDynamics : Muscle recruitment solver : solver aborted due to singular KKT matrix

Can anyone tell me what this ERROR means and how to eliminate it?
I am using AMS 4.0 .
Best regards
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Old 08-11-2014, 12:32 PM
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mkjung9980 mkjung9980 is offline
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Join Date: Aug 2009
Posts: 893


This is the self-supported forum where you can't expect our official support.
And I would like to kindly ask you not to make several posts at the same time.

Best regards,

Moon Ki Jung, Ph.D, Application Engineer, AnyBody Technology A/S.

※ AnyScript™ Reference Manual is the bible.
※ AnyScript™ wiki page is the best supplementary information(
※ When you would upload your models, please write information about your AMS and AMMR versions.
※ If you want to get more intensive support, please update your information(profile, organization and signature).
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