*HEADING
: Damped oscillations [CPE8R]
*preprint,model=yes,history=yes
*NODE,NSET=NALL
*NGEN,NSET=NL
*NGEN,NSET=NR
*NFILL
NL,NR,8,100
*ELEMENT,TYPE=CPE8R,ELSET=EALL
*ELGEN,ELSET=EALL
*SOLID SECTION,MATERIAL=A1, ELSET=EALL
1.0,
*MATERIAL,NAME=A1
*ELASTIC,TYPE=ISOTROPIC
30.0E6,0.3
*DENSITY
10.,
*BOUNDARY
NL,1,2
*STEP
*FREQUENCY, eigensolver=lanczos
3, ,
*MODAL FILE
*END STEP
*STEP,PERTURBATION
*STATIC
*CLOAD
801,2,-100000.
*NODE FILE, FREQ=10
U,
*OUTPUT, FIELD, FREQ=10
*NODE OUTPUT
U,
*EL PRINT,FREQ=20
S,
E,
*NODE PRINT,FREQ=20
U,
*END STEP
*STEP
*MODAL DYNAMIC,CONTINUE=YES
0.01,1.
*MODAL DAMPING,DEFINITION=FREQUENCY RANGE
*CLOAD,OP=NEW
*END STEP