*HEADING Inertia Relief analysis for Automobile Axel Modeled as Beam elements *PREPRINT,ECHO=YES *NODE,NSET=AXEL 1,0.00,-779.50,0.00 2,0.00,-736.30,0.00 3,0.00,-705.30,0.00 4,152.00,-695.61,-13.81 5,2.56,-750.00,-116.00 *NSET,NSET=NALL AXEL *NSET,NSET=FIXED 3 *ELEMENT,TYPE=B31,ELSET=AXEL1 1,1,2 2,2,3 *BEAM SECTION,SECTION=CIRC,MATERIAL=STEEL,ELSET=AXEL1 13.0, *ELEMENT,TYPE=B31,ELSET=AXEL2 3,2,5 *BEAM SECTION,SECTION=CIRC,MATERIAL=STEEL,ELSET=AXEL2 15.0, 1.0, 0.0, 0.0 *ELEMENT,TYPE=B31,ELSET=AXEL3 4,2,4 *BEAM GENERAL SECTION,SECTION=GENERAL,ELSET=AXEL3,DENSITY=7.8e-9 391.0,17000.0,0.0,9400.0,22600.0 0.0,0.0,-1 2.1E+05,8.077E+04 *ELSET,ELSET=EALL AXEL1,AXEL2,AXEL3 *BOUNDARY FIXED,1,6 *MATERIAL,NAME=STEEL *DENSITY 7.8E-9 *ELASTIC 2.1E+05,0.3 *STEP,NLGEOM,PERTURBATION INERTIA RELIEF ANALYSIS *STATIC *BOUNDARY FIXED,1,6 *DLOAD EALL,GRAV,9815.0,0.0,0.0,-1.0 *CLOAD,FOLLOWER 4,4,10 4,2,-10 5,6,10 5,1,-10 1,5,10 1,3,-10 *INERTIA RELIEF *OUTPUT,FIELD,variable=preselect *NODE PRINT,NSET=FIXED RF *NODE PRINT,NSET=FIXED U *NODE PRINT CF ***EL PRINT,ELSET=EALL **IRX **IRA **IRF **IRRI **IRMASS *OUTPUT,HISTORY *ELEMENT OUTPUT,ELSET=EALL S E IRX IRA IRF IRRI IRMASS *END STEP