How can I extract the superelement damping matrix with HBMAT in ANSYS 11.0? I would like to extract the reduced damping matrix in Harwell-Boeing format. I have been able to successfully extract the stiffness and mass matrices. When I try to extract the damping matrix I receive the error "The selected matrix to be dumped (damping) does not exist on the chosen .SUB file (test.sub)." Is it possible? Here is my test that doesn't work.

/prep7
et,1,42
n,1
n,2,1
n,3,2
ngen,2,3,1,3,1,,1
mp,ex,1,3e7
mp,dens,1,.283
e,1,2,5,4
e,2,3,6,5
m,1,all
m,3,all
m,4,all
m,6,all
anty,substr
SEOPT,test,3,2,0,1

ALPHAD,0,
BETAD,0,
DMPRAT,0.01,

fini
/solu
solve
fini

/AUX2
FILE,'test','sub',' '
HBMAT,'testk','txt',' ',ASCII,STIFF,YES
FINISH

! This part doesn't work
/AUX2
FILE,'test','sub',' '
HBMAT,'testd','txt',' ',ASCII,DAMP,YES
FINISH


The documentation indicates we can only write the damping matrix for a damped modal. I tried that in the attached version of your input and it seemed to work.

/solu
antyp,modal
modop,qrdamp,6 ! Damped modal
solve
fini

/AUX2
FILE,'test','sub',' '
HBMAT,'testk','txt',' ',ASCII,STIFF,YES
FINISH

! This part doesn't work
/AUX2
FILE,'file','full'
HBMAT,'testd','txt',' ',ASCII,DAMP,YES
FINISH





Show Form
No comments yet. Be the first to add a comment!