*HEADING
: SUBMODEL [AC3D4]
*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=LINER1
35,135,735,835
*ELSET,ELSET=LINER2
36,136,736,836
*ELEMENT,TYPE=AC3D4,ELSET=EALL
    1,    1,  101,  102, 1001
    2,  101,  102, 1001, 1101
    3,  102, 1001, 1101, 1102
    4,    1,  102,    2, 1001
    5,  102,    2, 1001, 1102
    6,    2, 1001, 1102, 1002
*ELGEN,ELSET=EALL
1,6,1,6, 2,100,100,2,1000,700
2,6,1,6,2,100,100,2,1000,700
3,6,1,6,2,100,100,2,1000,700
4,6,1,6,2,100,100,2,1000,700
5,6,1,6,2,100,100,2,1000,700
6,6,1,6,2,100,100,2,1000,700
*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
LINER1,I2
LINER2,I4
*BOUNDARY,SUBMODEL,STEP=1
BOT,8,8
*NODE PRINT,NSET=RECRD
POR,PPOR
*NODE FILE,nset=RECRD
POR,PPOR
*OUTPUT,FIELD,VARIABLE=PRESELECT,OP=ADD,FREQUENCY=9999
*OUTPUT,FIELD, OP=ADD
*NODE OUTPUT,nset=RECRD
POR,
*OUTPUT,HISTORY,OP=ADD
*NODE OUTPUT,nset=RECRD
POR,
*END STEP