INIT MASTER(S) NASTRAN SYSTEM(442)=-1, SYSTEM(319)=1 ID Femap,Femap SOL SEMODES TIME 1000 CEND $ Benchmark Supercritical Wing (BSCW) Faux model$ $ Generated by Jennifer Heeg, 2014 in support of the $ AePW-2 analysis effort $ $ $ Note: a separate .bdf has to be generated to use with the DDF program $ that maps the mode shapes to the aerodynamic grid. That .bdf has formatted $ cards rather than the free format used here. TITLE = BSCW Faux aeroelastic model Autospc(noprint) ECHO = sort(except grid, cquad4, ctria3, CHEXA, CTETRA, CBEAM, CPENTA,+ CORD2R, PSOLID, RBE2 ) DISPLACEMENT = ALL SPCFORCE(PLOT) = ALL $ ESE(PLOT) = ALL $ METHOD = 1 $ BEGIN BULK $ PARAM, POST, -1 PARAM, OGEOM, NO PARAM, AUTOSPC,YES PARAM, GRDPNT, 2 PARAM, NOFISR, 1 EIGRL 1 20 0 MASS $ May 2, 2014: $ The published properties of the PAPA mounted wing are not relative to the 30%chord $ location, but rather relative to the midchord $ to correct this error, all grid points at the 30% chord are being moved to the midchord location $ CORRECTED VERSION: GRID 2 is at the wing root at the center of rotation(x/c = 0.5, 16 inch chord --> 8 inches from leading edge) $ GRID 2 is at the wing root at the center of rotation(x/c = 0.3, 16 inch chord = 4.8 inches from leading edge) $ GRId 1000 is the ground point that the springs will attach to GRID,1000,,8.00,0.0,0.0,,123456 $ adding grid points to define a rigid wing $ matrix of 3 points chordwise by 5 points spanwise. $ chord-wise points are at leading edge, rotational axis and trailing edge $ spanwise points are at root, 30% 60 % span, 95% span,and wing tip GRID,1,,0.00,0.00,0.00,, GRID,2,,8.00,0.00,0.00,,1246 GRID,3,,16.00,0.00,0.00,, GRID,4,,0.00,9.60,0.00,, GRID,5,,8.00,9.60,0.00,, GRID,6,,16.00,9.60,0.00,, GRID,7,,0.00,19.20,0.00,, GRID,8,,8.00,19.20,0.00,, GRID,9,,16.00,19.20,0.00,, GRID,10,,0.00,30.40,0.00,, GRID,11,,8.00,30.40,0.00,, GRID,12,,16.00,30.40,0.00,, GRID,13,,0.00,32.00,0.00,, GRID,14,,8.00,32.00,0.00,, GRID,15,,16.00,32.00,0.00,, CQUAD4,3001,3000,1,2,5,4 CQUAD4,3002,3000,2,3,6,5 CQUAD4,3003,3000,4,5,8,7 CQUAD4,3004,3000,5,6,9,8 CQUAD4,3005,3000,7,8,11,10 CQUAD4,3006,3000,8,9,12,11 CQUAD4,3007,3000,10,11,14,13 CQUAD4,3008,3000,11,12,15,14 PSHELL,3000,3000,1.0,3000,,3000 $ celas1 1000 is the vertical displacement linear spring $ celas1 1001 is the torsional rotational linear spring CELAS1,1000,1000,2,3,1000,3 CELAS1,1001,1001,2,5,1000,5 PELAS,1000,219.75 PELAS,1001,35568. $ leading edge points CONM2,3000,1,,0.0357 CONM2,3004,4,,0.0357 CONM2,3007,7,,0.0357 CONM2,3010,10,,0.0357 CONM2,3013,13,,0.0357 $ rotation axis points CONM2,3002,2,,0.0290,,,,,+3000 +3000,,,10.476 CONM2,3008,8,,0.0290 CONM2,3005,5,,0.0290 CONM2,3011,11,,0.0290 CONM2,3014,14,,0.0290 $ trailing edge points CONM2,3003,3,,0.0357 CONM2,3006,6,,0.0357 CONM2,3009,9,,0.0357 CONM2,3012,12,,0.0357 CONM2,3015,15,,0.0357 $ very stiff light material that I may use in future renditions $MAT1,3000,2.85+19,,0.3,1.098-15 MAT1,3000,2.85+10,,0.3,1.098-12 $ $ ENDDATA bb7aeb05 $