*HEADING FREQUENCY PROCEDURES - /STANDARD VERIFICATION, 3D CONNECTORS ** *NODE 1,0.0,0.0, 11,0.0,10.0, 100,-1.0,5.0, *PARAMETER KAXIAL1=1.0E3 KROT1=1.0E3 U1=1.0E-3 UR1=1.0E-3 KAXIAL2=KAXIAL1/1000 KROT2=KROT1/1000 U2=100*U1 UR2=100*UR1 F1=KAXIAL1*U1 M1=KROT1*UR1 F2=F1+KAXIAL2*(U2-U1) M2=M1+KROT2*(UR2-UR1) mF1=-F1 mF2=-F2 mU1=-U1 mU2=-U2 mM1=-M1 mM2=-M2 mUR1=-UR1 mUR2=-UR2 ** *NGEN,NSET=NCOL 1,11,1 *ELEMENT, TYPE=B33, ELSET=COLUMN 1,1,2 *ELGEN, ELSET=COLUMN 1,10,1,1 **CONNECTOR ELEMENTS *ELEMENT, TYPE=CONN3D2, ELSET=AXIAL 1001,100,6 *ELEMENT, TYPE=CONN3D2, ELSET=BASE 1002,,1 *ELEMENT, TYPE=CONN3D2, ELSET=ACTUATOR 1003,,11 *ELSET, ELSET=CART-ROT BASE, ACTUATOR *ELSET, ELSET=CONNECTORS AXIAL, BASE, ACTUATOR ** SECTION DEFINITIONS *BEAM SECTION, SECTION=RECT, ELSET=COLUMN, MATERIAL=STEEL 0.1,0.1 0.0,0.0,-1.0 *CONNECTOR SECTION, ELSET=AXIAL, BEHAVIOR= CB_AXIAL CARTESIAN GLOBAL, *CONNECTOR SECTION, ELSET=CART-ROT, BEHAVIOR= CB_ROT CARTESIAN, CARDAN GLOBAL, *ORIENTATION, NAME=GLOBAL 1.0,0.0,0.0,0.0,1.0,0.0 ** ** MATERIAL AND CONNECTOR BEHAVIOR DEFINITIONS ** *MATERIAL, NAME=STEEL *ELASTIC 200.0E9,0.3 *DENSITY 7800.0, ** *CONNECTOR BEHAVIOR, NAME= CB_AXIAL *CONNECTOR ELASTICITY, COMPONENT=1, NONLINEAR , , , , ** *CONNECTOR BEHAVIOR, NAME= CB_ROT *CONNECTOR ELASTICITY, COMPONENT=6, NONLINEAR , , , , ** ** BOUNDARY CONSTRAINTS (BASE STATE) ** *CONNECTOR MOTION ACTUATOR,1, ACTUATOR,4, ACTUATOR,5, BASE,1, BASE,2, BASE,3, BASE,4, BASE,5, *BOUNDARY 100,1,6 NCOL,3,5, ** ** *AMPLITUDE, NAME=AMP 0.0,1.0,0.2,1.0,0.21,0.0,1.0,0.0 ** ** *STEP STEP-1: OBTAIN FIRST 5 NATURAL MODES ** *FREQUENCY, EIGENSOLVER=SUBSPACE, SIM=NO 5, ** *OUTPUT, FIELD *NODE OUTPUT U,RF *ELEMENT OUTPUT, ELSET=COLUMN S,E *ELEMENT OUTPUT, ELSET=CONNECTORS CTF,CEF,CU *NODE PRINT U1,U2,UR3 *EL PRINT, ELSET=CONNECTORS CTF CEF CRF CU *NODE FILE U,RF *EL FILE, ELSET=CONNECTORS CTF,CEF,CRF,CU *END STEP ** ** *STEP STEP-2: OBTAIN DYNAMIC RESPONSE WITH MODAL DYNAMIC SUPERPOSITION ** *MODAL DYNAMIC 0.02,1.0 *CLOAD, AMPLITUDE=AMP 7,1,1E4 ** *OUTPUT, FIELD *NODE OUTPUT U,RF *ELEMENT OUTPUT, ELSET=CONNECTORS CTF,CEF,CU *OUTPUT, HISTORY *ELEMENT OUTPUT, ELSET=CONNECTORS CTF1,CEF1,CVF1,CRF1 CU1, *NODE PRINT, FREQUENCY=1 U1,V1,A1 CF1,RF1 *EL PRINT, ELSET=AXIAL, FREQUENCY=1 CTF1,CEF1,CVF1,CRF1, CU1, *EL PRINT, ELSET=ACTUATOR, FREQUENCY=1 CTF1,CEF1,CVF1,CRF1 CU1, *NODE FILE U,RF *EL FILE, ELSET=CONNECTORS CTF,CEF,CVF,CRF CU, *END STEP ** ** The following steps will test the connector behavior due to ** nonlinear elasticity. ** *STEP, NLGEOM STEP-3: STATIC STEP (NLGEOM) ** ** Static step with NLGEOM to modify the base satate ** *STATIC 0.1,1.0 *CONNECTOR LOAD, OP=NEW ACTUATOR,2,-1.0E5 *CLOAD 11,6,1.0E4 ** *OUTPUT, FIELD *NODE OUTPUT U,RF *ELEMENT OUTPUT, ELSET=CONNECTORS CTF,CEF,CU *ELEMENT OUTPUT, ELSET=COLUMN S,E *OUTPUT,HISTORY,FREQ=1 *ELEMENT OUTPUT,ELSET=CONNECTORS CTF,CEF,CRF,CP,CU *NODE PRINT U1,U2,UR3 *EL PRINT, ELSET=CONNECTORS CTF CU *NODE FILE U,RF *EL FILE, ELSET=CONNECTORS CTF,CEF,CRF,CP,CU *END STEP ** ** *STEP STEP-4: OBTAIN FIRST 5 NATURAL MODES ** *FREQUENCY, EIGENSOLVER=SUBSPACE, SIM=NO 5, ** *OUTPUT, FIELD *NODE OUTPUT U,RF *ELEMENT OUTPUT, ELSET=CONNECTORS CTF,CEF,CU *ELEMENT OUTPUT, ELSET=COLUMN S,E *NODE PRINT U1,U2,UR3 *EL PRINT, ELSET=CONNECTORS CTF CEF CRF CU *NODE FILE U,RF *EL FILE, ELSET=CONNECTORS CTF,CEF,CRF,CU *END STEP ** ** *STEP STEP-5: OBTAIN DYNAMIC RESPONSE WITH MODAL DYNAMIC SUPERPOSITION ** *MODAL DYNAMIC 0.02,1.0 *CLOAD, AMPLITUDE=AMP 7,1,1E4 ** *OUTPUT, FIELD *NODE OUTPUT U,RF *ELEMENT OUTPUT, ELSET=CONNECTORS CTF,CEF,CU *OUTPUT, HISTORY *ELEMENT OUTPUT, ELSET=CONNECTORS CTF1,CEF1,CVF1,CRF1 CU1, *NODE PRINT, FREQUENCY=1 U1,V1,A1 CF1,RF1 *EL PRINT, ELSET=AXIAL, FREQUENCY=1 CTF1,CEF1,CVF1,CRF1, CU1, *EL PRINT, ELSET=ACTUATOR, FREQUENCY=1 CTF1,CEF1,CVF1,CRF1 CU1, *NODE FILE U,RF *EL FILE, ELSET=CONNECTORS CTF,CEF,CVF,CRF CU, *END STEP