Inverse dynamic analysis fails due to factorization of stiffness matrix for velocity analysis

[CDzialo (Christine Dzialo)]

Hi Anja,

I think you need to start off by cropping out the t-pose (in trialspecificdata.any) before you run the BVH_PreProcess, please see similar post:

Xsens bvh file inverse dynamics error

Hi Vijeth, Welcome to this forum. I am not sure it is the cause of the problem, but i would not export the first frame as a T-pose. This will mean that the model would have to go from t-pose to a completely different posture in one frame, this may cause problems. Secondly i would export in m not cm. I would have thought that both these things may have prevented you from running the kinematic analysis which you already completed? Best regards Søren

best regards,
Christine