*HEADING 
EXPLICIT: GLOBAL MODEL
ACOUSTIC TO STRUCTURE SUBMODELING [SAX1/ACAX4R]
ACOUSTIC PRESSURE APPLIED ON BOTH SIDES OF THE SHELL;
*PREPRINT, ECHO=YES,MODEL=YES,HISTORY=YES
*PARAMETER
F=15.0
T=1.0/F
T10=10*T
T2=2*T
T4=4*T
T6=6*T
T03=0.3*T
F_OUT_HIST=T/1000
OMEGA=2*3.14159*F
*NODE,NSET=ACOUS_BOT
1,2.0,0.0
2,2.5,0.0
3,3.0,0.0
4,2.0,0.5
5,2.5,0.5
6,3.0,0.5
7,2.0,1.0
8,2.5,1.0
9,3.0,1.0
*NODE,NSET=ACOUS_TOP
10,2.0,1.0
11,2.5,1.0
12,3.0,1.0
13,2.0,2.0
14,2.5,2.0
15,3.0,2.0
16,2.0,3.0
17,2.5,3.0
18,3.0,3.0
*NSET,NSET=ACOUS
ACOUS_BOT,ACOUS_TOP
*NSET,NSET=POR
4,3,5,6
*NODE,NSET=SHELL
21,1.0,1.0
22,2.0,1.0
23,2.50,1.0
24,3.0,1.0
25,4.0,1.0
*NSET,NSET = QA_TEST
SHELL,
*ELEMENT,TYPE=ACAX4R,ELSET=ACOUS_BOT
1,1,2,5,4
2,2,3,6,5
3,4,5,8,7
4,5,6,9,8
*ELEMENT,TYPE=ACAX4R,ELSET=ACOUS_TOP
5,10,11,14,13
6,11,12,15,14
7,13,14,17,16
8,14,15,18,17
*ELSET,ELSET=ACOUS
ACOUS_BOT,ACOUS_TOP
*ELEMENT,TYPE=SAX1,ELSET=SHELL
10,21,22
11,22,23
12,23,24
13,24,25
*SOLID SECTION, MATERIAL=FLUID,ELSET=ACOUS
*SHELL SECTION, MATERIAL=STEEL,ELSET=SHELL
0.2,
*MATERIAL,NAME=FLUID
*DENSITY
1000.0, 
*ACOUSTIC MEDIUM
2.25E9
*MATERIAL,NAME=STEEL
*DENSITY
7800.0,
*ELASTIC
207E9,0.3
*SURFACE,TYPE=ELEMENT,NAME=FLUID_B
3,S3
4,S3
*SURFACE,TYPE=ELEMENT,NAME=FLUID_T
5,S1
6,S1
*SURFACE,TYPE=ELEMENT,NAME=SHELL_B
11,SNEG
12,SNEG
*SURFACE,TYPE=ELEMENT,NAME=SHELL_T
11,SPOS
12,SPOS
*TIE,NAME=BOT
FLUID_B,SHELL_B
*TIE,NAME=TOP
FLUID_T,SHELL_T 
*AMPLITUDE,NAME=SINE,DEF=PERIODIC
1,<OMEGA>,0.0,0.0
0,1,0,0
*NSET,NSET=DRIV
1,2,3,16,17,18
*BOUNDARY
21,1,6
25,1,6
*STEP
*DYNAMIC,EXPLICIT
,<T03>
*BOUNDARY,AMP=SINE
DRIV,8,,1e9
***********************************
***    DO NOT MODIFY THE GLOBAL ***
***          FIL REQUEST     ******
***********************************
*FILE OUTPUT,NUM=40
*NODE FILE,NSET=ACOUS
POR,
*******************
*OUTPUT,FIELD,NUM=40
*NODE OUTPUT,NSET=ACOUS
POR,
*NODE OUTPUT,NSET=SHELL
U,
*ELEMENT OUTPUT, ELSET=SHELL
S,
*******************
*OUTPUT,HISTORY,TIME INTERVAL=<F_OUT_HIST>
*NODE OUTPUT,NSET=SHELL
U,
*NODE OUTPUT,NSET=POR
POR,
*****************QA_TEST***********
*OUTPUT, FIELD, NUMBER INTERVAL = 1
*NODE OUTPUT,NSET=QA_TEST
U,
*******************
*END STEP