Example for getting matrix of mass, stiffness, frequency from Ansys Modal Analysis

[smartAnsys]

Dear Sir,

Could you give an exmple to get matrix of mass, stiffness, frequency
from Ansys Modal Analysis?


Thanks
leo

[Evgenii Rudnyi]

Just use HBMAT.

Please note that starting 12.1 there also SPMWRITE to write the
reduced matrices after the modal analysis.

[Nico S]

Hi

I get a little bit confused about the different ways to export matrices:
 1. What's the difference between HBMAT and *DMAT,Matrix,D, IMPORT, FULL, file.full, MASS commands?
 2. When using the *DMAT,Matrix,D, IMPORT, FULL, file.full, MASS command I get a mass matrix with an entry order I cannot understand: Let's say the DOFs (t.ex. 6 per node) are saved as (x1 y1 z1 a1 b1 c1) then the mass Matrix should be diagonal. But it isn't..Why?

Im not so sure if the exported Matrix is the one I think it is..

Best regards