Beam Pre-Stressed Modal PSD

FINISH
/CLEAR,NOSTART
/PREP7  

L=100
E=200E9

K,1,0,0,,   
K,2,L,0,,   
LSTR,1,2,10  

ET,1,BEAM188
SECTYPE,1, BEAM, RECT, , 0   
SECDATA,1,1,

MP,EX,1,E
MP,PRXY,1,0.3
MP,DENS,1,7800

LMESH,ALL

!------------ STATIC SOLUTION ------------------
/SOLU

D,1,ALL,0

F,2,FX,1000

PSTRES,ON

RESCONTROL,LINEAR

SOLVE
FINISH

!------------ MODAL SOLUTION ---------------------
/SOLU
ANTYPE,STATIC,RESTART,,,PERTURB

PERTURB,MODAL

SOLVE,ELFORM

MODOPT,QRDAMP,20

MXPAND,ALL,,,YES

SOLVE
FINISH

!------------- PSD SOLUTION -------------------

*GET,jnam,ACTIVE,0,JOBNAM

/ASSIGN,RST,%jnam%,RSTP

/SOLU
ANTYPE,SPECTR

SPOPT,PSD,,YES

D,1,UY,1

PSDUNIT,1,ACEL
PSDFRQ,1,,100.,500.,1000.,1200.,1500.
PSDVAL,1,1.,5.,8.,7.,4.

PFACT,1,BASE

SOLVE
FINISH

!-------------- PSD COMBINATION ---------------
/SOLU
ANTYPE,SPECTR

PSDCOM

SOLVE

FINISH