*HEADING : MODEL CHANGE ACOUSTICS TESTS [ACAX3] *PREPRINT,ECHO=YES,MODEL=YES,HISTORY=YES *NODE, Nset=ODB_NSET 1 , 41,,10. 1001,1. 1041,1.,10. *NGEN,NSET=NALL 1,41 1001,1041 *ELEMENT,TYPE=ACAX3,ELSET=EALL 200, 1, 1001, 1003, 201, 1003, 3, 1, 202, 3, 1003, 1005, 203, 1005, 5, 3, 204, 5, 1005, 1007, 205, 1007, 7, 5, 206, 7, 1007, 1009, 207, 1009, 9, 7, 208, 9, 1009, 1011, 209, 1011, 11, 9, 210, 11, 1011, 1013, 211, 1013, 13, 11, 212, 13, 1013, 1015, 213, 1015, 15, 13, 214, 15, 1015, 1017, 215, 1017, 17, 15, 216, 17, 1017, 1019, 217, 1019, 19, 17, 218, 19, 1019, 1021, 219, 1021, 21, 19, 220, 21, 1021, 1023, 221, 1023, 23, 21, 222, 23, 1023, 1025, 223, 1025, 25, 23, 224, 25, 1025, 1027, 225, 1027, 27, 25, 226, 27, 1027, 1029, 227, 1029, 29, 27, 228, 29, 1029, 1031, 229, 1031, 31, 29, 230, 31, 1031, 1033, 231, 1033, 33, 31, 232, 33, 1033, 1035, 233, 1035, 35, 33, 234, 35, 1035, 1037, 235, 1037, 37, 35, 236, 37, 1037, 1039, 237, 1039, 39, 37, 238, 39, 1039, 1041, 239, 1041, 41, 39, *ELSET,ELSET=SECOND,GENERATE 220,239 *SOLID SECTION,MATERIAL=AIR,ELSET=EALL *MATERIAL,NAME=AIR *DENSITY 1.293 , *ACOUSTIC MEDIUM,BULK MODULUS 1.42176E5 , *NSET,NSET=QA_TEST,GEN 1,21 *NSET,NSET=DRIV 1 , ************************************** *STEP *STEADY STATE DYNAMIC,DIRECT 1. , *IMPEDANCE 239,I1, *BOUNDARY DRIV,8,,1. *NODE PRINT,NSET=QA_TEST POR, *NODE FILE,NSET=QA_TEST POR, *OUTPUT,FIELD, OP=NEW *NODE OUTPUT,NSET=QA_TEST POR, *OUTPUT,HISTORY *NODE OUTPUT,NSET=QA_TEST POR, *ENDSTEP ************************************** *STEP *STATIC 1,1 *MODEL CHANGE,REMOVE SECOND, *OUTPUT,FIELD,VAR=PRESELECT *ENDSTEP ************************************** *STEP *STEADY STATE DYNAMIC,DIRECT 1. , *IMPEDANCE,OP=NEW 219,I1, *BOUNDARY DRIV,8,,1. *NODE PRINT,NSET=QA_TEST POR, *NODE FILE,NSET=QA_TEST POR, *OUTPUT,FIELD *NODE OUTPUT,NSET=QA_TEST POR, *OUTPUT,HISTORY,OP=ADD *NODE OUTPUT,NSET=QA_TEST POR, *ENDSTEP