Is there a way to get participation factors for a PSOLVE PRESTRESS modal?


Based on the test below, you can run a spectrum analysis after the modal to obtain participation factors in the x, y, and z direction. These spectrum runs are very fast.

/prep7
et,1,45
mp,ex,1,1e7
mp,nuxy,1,.3
mp,dens,1,.00027
block,,20,,1,,.5
esize,.5
vmesh,1
nsel,s,loc,x,0
d,all,all
nsel,all
fini

/solu
antyp,static
nsel,s,loc,x,20
f,all,fx,10
nsel,all
nlgeom,on
pstres,on
solve
fini

/solut
antype,modal
modop,lanb,10
upcoord,1
mxpand,10
psolve,eiglanb
psolve,eigexp
fini

/solu
antyp,spectrum
spopt,sprs
freq,1,1000
sv,.02,1,1
svtype,3
sed,1,0,0 ! x participation factors
solve
*get,pfx1,mode,1,pfact
! etc...
sed,0,1,0 ! y participation factors
solve
sed,0,0,1 ! z participation factors
solve
fini





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