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Mass not found when deleting constraints

Mass not found when deleting constraints

Mass not found when deleting constraints

(OP)
Hi everyone,

I was given an ANSYS MECHANICAL APDL model with different constraint equations.
I only need the K and M matrices so I decided to take out all the constraint equation of my model.

In order to do that, I use the GUI option --> Pre-precessor/Coupling-Ceqn/DEL Constrain equation

I have previously check the number of constraint equations and input that in deleting constrain equation (1 to number of equation).
However, when I do that it seems that I cannot get the mass of the model.

On the other hand, If I run the script with the constraint formulation seems to work fine.

Any suggestion?



Thank you,

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