RES-REST.txt

/COM *********************************************************
/COM File: RES-REST.MAC
/COM *********************************************************
/COM Resonant diaphragm pressure sensor
/COM   make a RESTART analysis on a static solution
/COM   and evaluate the load dependent freuqencies by using
/COM   the modified STIFFNESS matrix of the system
/COM *********************************************************

antype,modal         ! activate prestressed modal analysis
total,50,1           ! -> use 50 MDOFs, exclude rotational DOFs
modopt,,3            ! -> use Householder method
mxpand,3             ! -> expand 3 modes to full DOF set 
pstres,on            ! -> include prestress effects
solve                ! start RESTART analysis
fini                 ! back to BEGIN level

/POST1               ! enter general Post-processor
set,list             ! list load steps
set,1,1
/view,1,1,1,1
pldi,1

/COM *************** write data to disk files
/outp,res-rest,dat  ! file name for altered frequencies
                    ! due to pressure load
set,list
/outp,term