Modal Stiffness and Modal Mass

Altair Forum User

Hi there,

 

I'm looking for a method in Hypermesh Optistruct to read out the Modal Stiffness and Mass Matrices. I want to use them to build a reduced model state space model in MATLAB

Rahul Rajan_21763

Hi,

This can be done by a super element with every GRID in the ASET and then using the resulting PUNCH DMIG.

Attached thumbnail for superelement analysis.

Regards

Rahul R

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