*HEADING
[ACINAXN, edge-surface impedances, transient]
*preprint,model=yes,history=yes,echo=yes
********************************
*part,name=plates
*NODE, NSET=first
1, 1., 0., 0.,  1,0,0
2, 1., 1., 0.,  1,0,0
3, 1., 2., 0.,  1,0,0
4, 1., 3., 0.,  1,0,0
5, 1., .5, 0.,  1,0,0
6, 1.,1.5, 0.,  1,0,0
7, 1.,2.5, 0.,  1,0,0
*********************************
*NSET,NSET=ALLNODES
FIRST,
*element,type=sax1,elset=mass
201,1,2
*element,type=sax2,elset=mass
202,3,7,4
*surface,name=sm1
201,sneg
*surface,name=sm2
202,sneg
*SHELLSECTION,MATERIAL=METAL,ELSET=MASS
0.05,
*end part
********************************
*part,name=aco
*NODE, NSET=first
1, 1., 0., 0.,  2,-.50,0
2, 1., 1., 0.,  2,0.50,0
3, 1., 2., 0.,  2,-.50,0
4, 1., 3., 0.,  2,0.50,0
5, 1., .5, 0.,  1,0,0
6, 1.,1.5, 0.,  1,0,0
7, 1.,2.5, 0.,  1,0,0
*ncopy,changenumber=10,oldset=first,newset=second,shift
0.5,0,0
1,0,0,   0,1,0
*ncopy,changenumber=20,oldset=first,newset=third,shift
1,0,0
1,0,0,   0,1,0
*NSET,NSET=ALLNODES
FIRST,second,third
*NSET,NSET=QA_TEST,generate
1,7
*element,elset=inf2,type=acax4
11, 2,1,21,22
*element,elset=inf3,type=acax8
12, 4,3,23,24, 7,13,27,14
*element,type=acinax2,elset=inf2
1,  22,21
*element,type=acinax3,elset=inf3
2, 24,23,27,
*surface,name=acinS2
11,s1
*surface,name=acins3
12,s1
*surface,name=acine2
1,e1
**1,s3
*surface,name=acine3
2,e1
**2,s3
*surface,name=ac4_s2
11,s2
11,s4
*surface,name=ac8_s2
12,s2
12,s4
***************************************
*SOLID SECTION,MATERIAL=AIR320,ELSET=INF2
1.0, 0.0,0.5,.0
*SOLID SECTION,MATERIAL=AIR320,ELSET=INF3
1.0, 0.0,2.5,.0
*endpart
***************************************
*assembly,name=assy1
*instance,name=PEdgeZ,part=plates
0.0,0.0,0.0
*end instance
*instance,name=EdgeZ,part=aco
0.0,0.0,0.0
*end instance
*instance,name=PnoneEdgeZ,part=plates
0.0,-4,0.0
*end instance
*instance,name=noneEdgeZ,part=aco
0.0,-4,0.0
*end instance
*tie,name=quad4
noneEdgeZ.acins2,PnoneEdgeZ.sm1
noneEdgeZ.acins3,PnoneEdgeZ.sm2
EdgeZ.acins2,PEdgeZ.sm1
EdgeZ.acins3,PEdgeZ.sm2
*end assembly
*************************************
** MATERIAL IMPEDANCE FOR AIR320 IS 400.0
** THE ADMITTANCE FOR HALF THIS VALUE IS USED
**
*impedance property,name=Half_Zmat
0.0, 0.005
*MATERIAL,NAME=AIR320
*DENSITY
1.25, 
*ACOUSTIC MEDIUM,BULK MODULUS
1.28E5,
*material,name=metal
*density
7800.0,
*elastic
200.0e9,0.3
*amplitude,definition=perio,name=TenPiHz
1, 5.0, 0.0, 0.0
0.0,1.0,0.0,0.0
*************************************
*STEP,inc=1000
*dynamic,direct
5.e-2,50.e-1

ASSY1.EDGEZ.ACINE2,
ASSY1.EDGEZ.ACINE3,
ASSY1.EDGEZ.AC4_s2,
ASSY1.EDGEZ.AC8_s2,
*BOUNDARY,type=acceleration,amplitude=tenpihz
ASSY1.PNONEEDGEZ.ALLNODES,1,1,1.0e-4
ASSY1.PEDGEZ.ALLNODES,    1,1,1.0e-4
*BOUNDARY
ASSY1.PNONEEDGEZ.ALLNODES,2,6,0.0
ASSY1.PEDGEZ.ALLNODES,    2,6,0.0
*OUTPUT,HISTORY,FREQUENCY=1
*NODE OUTPUT,NSET=NONEEDGEZ.QA_TEST
POR,
*NODE OUTPUT,NSET=EDGEZ.QA_TEST
POR,
*OUTPUT,FIELD,FREQUENCY=99999
*ELEMENT OUTPUT
*END STEP