Hello everyone,
I have a question regarding element orientation from injection mold data mapped on the ansys mesh.
I simulated with this data and I got some euler angles as you can see here below. [87.893,-5.402,89.805]
Then, I tried to reconstruct the global tensor coordinate system from the local eigen value and euler angle based coordinate system through python.
My eigen values which in this case are : array([0.84282816, 0.13237687, 0.02478798])
A11 and A22 (the first 2 are the same values that I get in ansys and Python calculation as well)
So the reconstructed global coordinate Tensor looks like this
Whereas my Tensor from Mold flow xml data looks like this below: (Note: only the yellow marked values are different and thus cause trouble ). I am just confused how the reconstructed global Tensor matrix (that too in this case just for one node) can look different than my mold flow input just by one single entry (just the same entry highlighted twice as it occurs twice in the tensor because of symmetry) ?
Because of this , I am not actually able to get the same euler angles , when I try to calculate directly from the mold flow data, as the eigen vectors are different in both the case (see below). Hence, I kindly request you to involve the developers here as well , as that would be of great help to quickly resolve my issue. This is actually turning out to be a concerning issue with my customer. I request you for your kind understanding.
It is causing the topic of uncertainty quantification to play a major role.
Due to this discrepancy, my euler angles are completely different
Looking forward for your kind reply.
