*HEADING
: SUBMODEL [AC3D8]
*NODE,NSET=BOT
1,0.0,8.5
101,0.5,8.5
201,1.0,8.5
1001,0.0,8.5,0.5
1101,0.5,8.5,0.5
1201,1.0,8.5,0.5
2001,0.0,8.5,1.0
2101,0.5,8.5,1.0
2201,1.0,8.5,1.0
*NODE,NSET=TOP
7,0.0,10.0
107,0.5,10.
207,1.0,10.
1007,0.0,10.0,0.5
1107,0.5,10.0,0.5
1207,1.0,10.0,0.5
2007,0.0,10.0,1.0
2107,0.5,10.0,1.0
2207,1.0,10.0,1.0
*NFILL,NSET=ALL
BOT,TOP,6,1
*NSET,NSET=RECRD
1,2,3,4,5,6,7
*ELSET,ELSET=LINER5
6,12,18,24
*ELEMENT,TYPE=AC3D8,ELSET=EALL
1,1,101,102,2,1001,1101,1102,1002
*ELGEN,ELSET=EALL
1,6,1,1,2,100,6,2,1000,12
*MATERIAL,NAME=AIR
*DENSITY
1.293, 
*ACOUSTIC MEDIUM,BULK MODULUS
1.42176E5, 
*SOLID SECTION,MATERIAL=AIR,ELSET=EALL
*SUBMODEL,EXT=0.025
BOT, 
**
** Sets added by addodb
**
*Elset,Elset=ODB_ESET
EALL,
**
**
*Nset, Nset=ODB_NSET
BOT, TOP, ALL, RECRD
**
**
*STEP
*STEADY STATE DYNAMIC,DIRECT
10., 
25., 
50., 
*IMPEDANCE
LINER5,I5
*BOUNDARY,SUBMODEL,STEP=1
BOT,8,8
*NODE PRINT,NSET=RECRD
POR,PPOR
*NODE FILE,nset=RECRD
POR,PPOR
*OUTPUT,FIELD,VARIABLE=PRESELECT,FREQUENCY=9999
*OUTPUT,FIELD
*NODE OUTPUT,nset=RECRD
POR,
*OUTPUT,HISTORY
*NODE OUTPUT,nset=RECRD
POR,
*END STEP