*HEADING
STANDARD: SUBMODEL from ac2solid_g_s4_ac3d8_std
ACOUSTIC TO STRUCTURE SUBMODELING [S4}
Acoustic pressure ON BOTH SIDES of the SHELL.
GLOBAL ELSET PARAMETER HAS TO BE USED
*PARAMETER
f=15
T1=1.0/f
T01=0.1*T1
******************
*NODE,NSET=NSOLID
200,2.0, -0.50, 1.5
201,2.0, -0.50, 1.0
202,2.0, -0.50, 0.5
203,2.0, -0.50, 0.0
204,2.0, -0.5, -0.5
***
205,2.0, 0.0, 1.5
206,2.0, 0.0, 1.0
207,2.0, 0.0, 0.5
208,2.0, 0.0, 0.0
209,2.0, 0.0,-0.5
***
210,2.0, 0.50, 1.5
211,2.0, 0.50, 1.0
212,2.0, 0.50, 0.5
213,2.0, 0.50, 0.0
214,2.0, 0.50,-0.5
***
215,2.0, 1.0, 1.5
216,2.0, 1.0, 1.0
217,2.0, 1.0, 0.5
218,2.0, 1.0, 0.0
219,2.0,1.0,-0.5
***
220,2.0, 1.50, 1.5
221,2.0, 1.50, 1.0
222,2.0, 1.50, 0.5
223,2.0, 1.50, 0.0
224,2.0,1.50,-0.5
**
*NSET,NSET=FIX
200,220,224,204
*ELEMENT,TYPE=S4,ELSET=ESOLID
11,200,201,206,205
*ELGEN,ELSET=ESOLID
11,4,1,1,4,5,4
*SHELL SECTION, ELSET=ESOLID, MATERIAL=ELAS
0.2
*MATERIAL, NAME=ELAS
*ELASTIC
207E9,0.3
*DENSITY
7800.0
*SURFACE, TYPE=ELEMENT, NAME=SHELL1
16,SNEG
17,SNEG
20,SNEG
21,SNEG
*SURFACE, TYPE=ELEMENT, NAME=SHELL2
16,SPOS
17,SPOS
20,SPOS
21,SPOS
*SUBMODEL,ACOUSTIC TO STRUCTURE,ABSOLUTE=0.2,GLOBAL ELSET=v64-5139-EFLUID1
SHELL1,
*SUBMODEL,ACOUSTIC TO STRUCTURE,ABSOLUTE=0.2,GLOBAL ELSET=V64-5139-EFLUID2
SHELL2,
*NSET,NSET=DRIV
206,207,208,211,212,213,
216,217,218
*NSET, NSET=QA_TEST
NSOLID,
*****
*BOUNDARY
fix,1,6
*STEP, NLGEOM=YES
*DYNAMIC,DIRECT
0.0001,<T01>
*BOUNDARY,SUBMODEL,STEP=1
DRIV,8,8
***********************************
*OUTPUT,FIELD,FREQ=10
*NODE OUTPUT, NSET=NSOLID
U,
*OUTPUT, HISTORY,FREQ=1
*NODE OUTPUT,NSET=NSOLID
U1,
*****************QA_TEST***********
*OUTPUT, FIELD, FREQ = 9999999
*NODE OUTPUT,NSET=QA_TEST
U,
*END STEP