*HEADING
EXPLICIT: GLOBAL MODEL
ACOUSTIC TO STRUCTURE SUBMODELING [CAX4R/ACAX4R]
ACOUSTIC PRESSURE APPLIED ON ONE SIDE OF THE SOLID;
*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
T01=0.1*T
F_OUT_HIST=T/10000
OMEGA=2*3.14159*F
*NODE,NSET=ACOUS
*NODE,NSET=SOLID
***
*NGEN,NSET=SOLID
*NSET,NSET=QA_TEST
SOLID,
*NSET,NSET=ACOUS_BOT
*NSET,NSET=SOLID_TOP
*NSET,NSET=POR
*ELEMENT,TYPE=ACAX4R,ELSET=ACOUS
*ELEMENT,TYPE=CAX4R,ELSET=SOLID
*ELGEN,ELSET=SOLID
*SOLID SECTION, MATERIAL=FLUID,ELSET=ACOUS
1.0,
*SOLID SECTION, MATERIAL=STEEL,ELSET=SOLID
1.0,
*MATERIAL,NAME=FLUID
*DENSITY
1000.0,
*ACOUSTIC MEDIUM
*MATERIAL,NAME=STEEL
*DENSITY
7800.0,
*ELASTIC
207E9,0.3
*SURFACE,TYPE=ELEMENT,NAME=FLUID
3,S3
4,S3
*SURFACE,TYPE=ELEMENT,NAME=SOLID
5,S1
6,S1
*TIE,NAME=BOT,ADJUST=NO
SOLID,FLUID
*AMPLITUDE,NAME=SINE,DEF=PERIODIC
1,<OMEGA>,0.0,0.0
0,1,0,0
*NSET,NSET=DRIV
*BOUNDARY
SOLID_TOP,1,3
*STEP
*DYNAMIC,EXPLICIT
,<T01>
*BOUNDARY,AMP=SINE
DRIV,8,,1e10
*********************
*FILE OUTPUT,NUM=50
*NODE FILE,NSET=SOLID
U,
*NODE FILE,NSET=ACOUS
POR,
*********************
*OUTPUT,FIELD,NUM=20,TIMEMARKS=YES
*NODE OUTPUT,NSET=ACOUS_BOT
POR,
*NODE OUTPUT,NSET=SOLID
U,
*ELEMENT OUTPUT, ELSET=SOLID
S,
*******************
*OUTPUT,HISTORY,TIME INTERVAL=<F_OUT_HIST>
*NODE OUTPUT,NSET=SOLID
U,
*NODE OUTPUT,NSET=POR
POR,
*ELEMENT OUTPUT,ELSET=SOLID
S,
*****************QA_TEST***********
*OUTPUT, FIELD, NUMBER INTERVAL = 1,TIMEMARKS=YES
*NODE OUTPUT,NSET=QA_TEST
U,
***************************
*END STEP