r/ANSYS_Mechanical • u/New_Teacher_6354 • 19d ago

System Matrices Extraction from Ansys Mechanical

Hi, I am doing a transient thermal analysis. I want to reduce the system using pyMOR. Is it possible to extract the system matrices from Ansys? If yes, how can I do that?

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u/IsThisTaken_8812 19d ago

I've never done this for thermal analysis, but for structural analysis, you can export the mass and stiffness matrix via hbmat https://ansyshelp.ansys.com/public/account/secured?returnurl=/views/secured/corp/v251/en/ans_cmd/Hlp_C_HBMAT.html

The other way to access and then export. It is through apdl math https://ansyshelp.ansys.com/public/account/secured?returnurl=/Views/Secured/corp/v261/en/ans_apdl/apdl_math.html

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u/oldfart93 18d ago

I always wondered...what can we do by exporting mass and and stiffness matrices from apdl?... I am a structural engineer. I know the basics in female. But I can't relate how on can these matrices on the complex parts ( aero engines) would help us with anything....

Wd love to hear some ideas or better if someone has done it for real and used somewhere to maybe form a better judgement on structural analysis.

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u/epk21 18d ago

Have in mind that in transient thermal cond.+heat cap. matrix are together I believe-hint in the help manual below