RESP-K6.txt

/COM *********************************************************
/COM File: RESP-K6.ANL
/COM *********************************************************
/COM analysis options for HARMONIC RESPONSE ANALYSIS (KAN=6)
/COM geometry defined by file: RESPRES.GEO
/COM *********************************************************

/COM   ************  define parameters
kraf=1e-7            ! excitation force
demf=1e-3            ! damping ratio
fsta=4000            ! start frequency
fsto=4400            ! stop frequency
nanz=30              ! number of iterations

/COM   ************  choose analysis type
/solu                ! enter SOLUTION
antype,harmic        ! Reduced Harmonic Response 
hropt,reduc
hrout,off            ! PRINT DISPLACEMENTS AS AMPLITUDE,PHASE
dmprat,demf          ! specify constant damping ratio
harfrq,fsta,fsto     ! define frequency range for harmonic loads
nsubst,nanz,,1       ! define number of frequency points 
outres,all,all
kbc,1                ! define stepping of loads

/COM   ************  define excitation force
nsel,s,loc,x,LANG/2        ! select midnode
nsel,r,loc,y,LANG/2
f,all,fz,kraf        ! define force (see also D command)
m,all,uz             ! assign MDOF
nlist                ! list node with excitation
total,50,1           ! let choose MDOFs automatically
allsel               ! reselect all nodes
solve   		! Starts the solution
fini    		! exists SOLUTION-phase

Returned to the "BEGIN-level", you will entry the postprocessing using the predefined macro "RESP-K6.MAC":

/COM *********************************************************
/COM File: RESP-K6.MAC
/COM *********************************************************
/COM Resonant diaphragm pressure sensor
/COM evaluate results of HARMONIC ANALYSIS (KAN=6)
/COM *********************************************************

/post26              ! enter Time-History-Postprocessor
/view                ! reset the viewing direction 
knot=61              ! assign midside node (MESH DEPENDENT)
file,file,rfrq       ! switch to FILE10.DAT
nsol,2,knot,u,z      ! specify nodal postdata to be stored
/grid,1              ! PUT GRID ON PLOTS
/axlab,y,ampl        ! define y-axis label
plva,2               ! plot amplitude (variable 2)

plcp,1               ! define phase angle to display
/axlab,y,phas        ! define y-axis label
plva,2               ! plot phase angle

prcp,1               ! define output form: AMPLITUDE, PHASE
/outp,resp-k6,dat    ! switch output data to file: RESP-K6.DAT
prva,2               ! write data
/outp,term           ! switch back to screen output