TAGGED: assembly, damping-matrix, export, mass-matrix
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September 21, 2023 at 7:34 am
Aymen Karim
SubscriberHi everyone here!
I have modelled of bridge deck in Ansys, however, I need the system matrices (K, M, C) for offline postprocessing using Matlab.
I know how to export them but they will give a vector of numbers of vague say stiffness matrix.
which is very difficult to use or understand.
is there any method to watch the gloabl stiffness matrix interms of its system parameters for example:
K=[k1+K2 -K2;-K2 k2] for 2 dof system?
is that possible?
Thank You!
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September 21, 2023 at 6:01 pm
Mike Rife
Ansys EmployeeAymen
It's not apparent what you really want...in your example are k1 and k2 symbolic or numerical values?
Mike
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September 22, 2023 at 2:06 am
Aymen Karim
SubscriberHello Mike,
I have to use the stiffness matrix later in Matlab, so I want symbolic stiffness matrix just as how I have already mention in my post. I will later in Matlab define stiffnesses.
I know Ansys give only I think sparse matrix of stiffness matrix entries, however is there any way to get the matrix in symbolic way?
Thanks
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September 26, 2023 at 11:52 am
Mike Rife
Ansys EmployeeAymen
No you can not get the symbolix matrix with the usual tools. However if you are willing to put in the work the EMAT file (element matrix) has the information needed and can be accessed with PyMAPDL Reader:
https://reader.docs.pyansys.com/version/stable/index.html
Mike
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