*HEADING
EXAMPLE PROBLEM: MODE 0 SPHERE USING ACINAX2. FINE MESH.
*PREPRINT,MODEL=YES,ECHO=YES,HISTORY=YES
*NODE,NSET=INNER,SYSTEM=S
*NGEN,LINE=C,NSET=INNER,SYSTEM=S
*ELEMENT, TYPE=ACINAX2,ELSET=EALL
*ELGEN, ELSET=EALL
*ELEMENT,TYPE=ASI2A,ELSET=COUPLING
*ELGEN,ELSET=COUPLING
**
** FLUID MATERIAL PROPERTIES; ARTIFICIAL MEDIUM FOR CONVENIENCE
** USING RHO = 1, BULKMOD = (2*PI)^2, WE HAVE C = 2*PI AND K = F.
**
*MATERIAL,NAME=AETHER
*DENSITY
1.000000,
*ACOUSTIC MEDIUM,BULK MODULUS
*SOLID SECTION,MATERIAL=AETHER,ELSET=EALL
1.0, 0.,0.,0.
*INTERFACE,ELSET=COUPLING
**
*NSET,NSET=QA_TEST
*TRANSFORM,NSET=INNER,TYPE=S
*STEP
*STEADY STATE DYNAMIC,DIRECT
**
** SURFACE RADIAL ACCELERATION OF 1/(RHO C) MAGNITUDE
**
*BOUNDARY,TYPE=VELOCITY
INNER,1,1,0.159154943
INNER,2,2,0.0
*NODE PRINT,NSET=QA_TEST,FREQUENCY=10000
POR,v
*NODE FILE,NSET=QA_TEST,FREQUENCY=10000
POR,v
*OUTPUT,FIELD
*NODE OUTPUT
POR,v
*OUTPUT,HISTORY
*NODE OUTPUT,NSET=QA_TEST
POR,v
*END STEP
*****************************