*HEADING
: IMPEDANCE [AC3D20]
*NODE, Nset=ODB_NSET
1, 
41,,10.
1001,1.
1041,1.,10.
2001,,,1.
2041,,10.,1.
3001,1.,,1.
3041,1.,10.,1.
4001,0.5,0,0
4041,0.5,10.
5001,1.,0.,0.5
5041,1.,10.,0.5
6001,0.5,0.0,1.0
6041,0.5,10.,1.0
7001,0., 0.,0.5
7041,0.,10.,0.5
*NGEN,NSET=NALL
1,41
1001,1041
2001,2041
3001,3041
4001,4041
5001,5041
6001,6041
7001,7041
*ELEMENT,TYPE=AC3D20,ELSET=EALL
1,1,1001,1005,5,2001,3001,3005,2005,4001,1003,
 4005,3,6001,3003,6005,2003,7001,5001,5005,7005
*ELGEN,ELSET=EALL
1,10,4,1
*ELSET,ELSET=LINER5
10, 
*MATERIAL,NAME=AIR
*DENSITY
1.293, 
*ACOUSTIC MEDIUM,BULK MODULUS
1.42176E5, 
*SOLID SECTION,MATERIAL=AIR,ELSET=EALL
*NSET,NSET=RECRD,GEN
1,41,4
1001,1041,4
2001,2041,4
3001,3041,4
*NSET,NSET=DRIV
1,1001,2001,3001,4001,5001,6001,7001
**
** Sets added by addodb
**
*Elset,Elset=ODB_ESET
EALL,
**
**
*Nset, Nset=ODB_NSET
ODB_NSET, NALL, RECRD, DRIV
**
**
*STEP
*STEADY STATE DYNAMIC,DIRECT
10., 
25., 
50., 
*IMPEDANCE
LINER5,I5
*BOUNDARY
DRIV,8,,1.
*NODE PRINT
POR,PPOR
*NODE FILE
POR,PPOR
*OUTPUT,FIELD,VARIABLE=PRESELECT,FREQUENCY=9999
*OUTPUT,FIELD
*NODE OUTPUT
POR,
*OUTPUT,HISTORY
*NODE OUTPUT, Nset=ODB_NSET
POR,
*END STEP