SOL 101 and 103 run perfectly, but SOL 105 gives excessive pivot ratios
SOL 101 and 103 run perfectly, but SOL 105 gives excessive pivot ratios
(OP)
Hello all,
So I am trying to do a Buckling analysis to a condensed Model and I get the Fatal Message 9050 (SEKRRS):
GRID POINT ID DEGREE OF FREEDOM MATRIX/FACTOR DIAGONAL RATIO MATRIX DIAGONAL
57004426 T1 -8.79996E+08 2.05308E+09
57004426 T2 2.05269E+08 8.17563E+08
57004426 T3 5.24272E+07 5.46972E+08
^^^
^^^ USER FATAL MESSAGE 9050 (SEKRRS)
^^^ RUN TERMINATED DUE TO EXCESSIVE PIVOT RATIOS IN MATRIX KLL.
^^^ USER ACTION: CONSTRAIN MECHANISMS WITH SPCI OR SUPORTI ENTRIES OR SPECIFY PARAM,BAILOUT,-1 TO
CONTINUE THE RUN WITH MECHANISMS.
So I get a negative Matrix/Factor Diagonal Ratio and this won't allow Nastran to continue. Does anybody know why I get a negative Matrix/Factor Diagonal Ratio for SOL 105 but not for SOL 101? The model is exactly the same and I looked at this node and it looks absolutely normal. All the model are 3D CHEXA elements by the way.
Thanks a lot,
So I am trying to do a Buckling analysis to a condensed Model and I get the Fatal Message 9050 (SEKRRS):
GRID POINT ID DEGREE OF FREEDOM MATRIX/FACTOR DIAGONAL RATIO MATRIX DIAGONAL
57004426 T1 -8.79996E+08 2.05308E+09
57004426 T2 2.05269E+08 8.17563E+08
57004426 T3 5.24272E+07 5.46972E+08
^^^
^^^ USER FATAL MESSAGE 9050 (SEKRRS)
^^^ RUN TERMINATED DUE TO EXCESSIVE PIVOT RATIOS IN MATRIX KLL.
^^^ USER ACTION: CONSTRAIN MECHANISMS WITH SPCI OR SUPORTI ENTRIES OR SPECIFY PARAM,BAILOUT,-1 TO
CONTINUE THE RUN WITH MECHANISMS.
So I get a negative Matrix/Factor Diagonal Ratio and this won't allow Nastran to continue. Does anybody know why I get a negative Matrix/Factor Diagonal Ratio for SOL 105 but not for SOL 101? The model is exactly the same and I looked at this node and it looks absolutely normal. All the model are 3D CHEXA elements by the way.
Thanks a lot,





RE: SOL 101 and 103 run perfectly, but SOL 105 gives excessive pivot ratios
RE: SOL 101 and 103 run perfectly, but SOL 105 gives excessive pivot ratios
Thanks for your reply.
So the first 2 frequencies are around 11Hz, the 3rd is 89 Hz and the tenth is around 190 Hz.
I don't understand your possibility, could you re explain it? I have exactly the same loads on both calculations. In the SOL 101 I have SC1 with the SOL 105 Preload and SC2 with the SOL 105 Buckling laod.
Thanks,
RE: SOL 101 and 103 run perfectly, but SOL 105 gives excessive pivot ratios
Is it possible that you use different constraints for the 2 subcases in Sol 105?
RE: SOL 101 and 103 run perfectly, but SOL 105 gives excessive pivot ratios
I upload both Input Decks, maybe it helps...
SOL 101
CODE -->
SOL 101 CEND ECHO = NONE $$------------------------------------------------------------------------------$ $$ Case Control Cards $ $$------------------------------------------------------------------------------$ $ K2GG=KAAX,KAAGGX P2G=PAX $ $ ******************* Subcase *********************************** SUBCASE 1 SUBTITLE=LC1 - - GROUND - Reverse Pressure - Preload LOAD=101 TEMP=9999 SPC=500 DISP(PLOT)=ALL STRESS(PLOT)=ALL $ SUBCASE 2 SUBTITLE=LC1 - - GROUND - Reverse Pressure - LifeLoad LOAD=102 SPC=500 DISP(PLOT)=ALL STRESS(PLOT)=ALL $ SUBCASE 3 SUBTITLE=LC2 - - GROUND - Filling(ATAT) - Preload LOAD=201 TEMP=4103 SPC=500 DISP(PLOT)=ALL STRESS(PLOT)=ALL $ SUBCASE 4 SUBTITLE=LC2 - - GROUND - Filling(ATAT) - LifeLoad LOAD=202 SPC=500 DISP(PLOT)=ALL STRESS(PLOT)=ALL $ $ $ *************************************************************** $ $ BEGIN BULK $ $ $ ****************** Loads ************************************** LOAD 101 1.0 2375000.57110 2375000.57111 35000. 57200 35000. 57201 0.0 57500 0.0 57501 1271250.57180 1271250.57181 1006000.57112 1006000.57113 $ $ LOAD 102 1.0 1051000.57192 1051000.57193 $ $ LOAD 201 1.0 23313.0 58710 427.35 58401 852.511 58301 2919.71 58307 1875.56 58303 0.0 58304 261.188 58305 2375000.57110 2375000.57111 35000. 57200 35000. 57201 0.0 57500 0.0 57501 1250000.57180 1250000.57181 1006000.57112 1006000.57113 0.0 57230 0.0 57231 0.0 57530 0.0 57531 $ $ LOAD 202 1.0 1051000.57192 1051000.57193 $ *************************************************************** $ $ PARAM,AUTOSPC,YES PARAM,CHECKEL,NO PARAM,PRGPST,NO PARAM,POST,0 $ $ $-------$-------$------- TEMPD 4103 293.0 TEMPD 3050 293.0 TEMPD 9999 300.0 $ $-------$-------$-------$-------$------- SPCADD 500 501 SPC 501 201856 123456 0.0 $ $ ********* Boundary Condition - FULLY FIXED AT I/F BME-RIE ********** $ RBE2 201856 201856 123456 201500 201505 201510 201515 201520 201525 201530 201535 201540 201545 201550 201555 201560 201565 201570 201575 201580 201585 201590 201595 201600 201605 201610 201615 201620 201625 201630 201635 201640 201645 201650 201655 201660 201665 201670 201675 201680 201685 201690 201695 201700 201705 201710 201715 201720 201725 201730 201735 201740 201745 201750 201755 201760 201765 201770 201775 201780 201785 201790 201795 201800 201805 201810 201815 201820 201825 201830 201835 201840 201845 201850 201855 GRID 201856 201 0. 0. 3.74 $ $ $ $ ********* DMIG ****************************************************** $ INCLUDE'CONDENSED_PARTS_gto_sl.pch' INCLUDE'Ground_PAX_v2.bdf' INCLUDE'Ground_KAAX_v2.bdf' $ $ ********* Model ****************************************************** $ INCLUDE 'ASET-Nodes_SL_def.bdf' INCLUDE 'Ground_LC1-LC2_MODEL.bdf' $ $ ********* Loads ****************************************************** $ INCLUDE 'Ground_LC1-LC2_LOADS.bdf' INCLUDE'Ground_LLC1-LC2_TEMPS.bdf' $ $ ENDDATASOL 105
CODE -->
SOL 105 CEND ECHO = NONE $$------------------------------------------------------------------------------$ $$ Case Control Cards $ $$------------------------------------------------------------------------------$ $ K2GG=KAAX,KAAGGX P2G=PAX $ $ ******************* Subcase *********************************** SUBCASE 1 SUBTITLE=LC1 - GROUND - Reverse Pressure - Preload LOAD=101 TEMP=9999 SPC=500 DISP(PLOT)=ALL STRESS(PLOT)=ALL $ SUBCASE 2 SUBTITLE=LC1 - GROUND - Reverse Pressure - LifeLoad LOAD=102 SPC=500 DISP(PLOT)=ALL STRESS(PLOT)=ALL $ SUBCASE 3 SUBTITLE=LC2 - GROUND - Filling(ATAT) - Preload LOAD=201 TEMP=4103 SPC=500 DISP(PLOT)=ALL STRESS(PLOT)=ALL $ SUBCASE 4 SUBTITLE=LC2 - GROUND - Filling(ATAT) - LifeLoad LOAD=202 SPC=500 DISP(PLOT)=ALL STRESS(PLOT)=ALL $ $ SUBCASE 10 SUBTITLE=LC1 - GROUND - Reverse Pressure - Buckling STATSUB(PRELOAD)=1 STATSUB(BUCKLING)=2 VECTOR(PLOT)=ALL METHOD=1 $ SUBCASE 11 SUBTITLE=LC2 - GROUND - Filling(ATAT) - Buckling STATSUB(PRELOAD)=3 STATSUB(BUCKLING)=4 VECTOR(PLOT)=ALL METHOD=2 $ $ $ *************************************************************** $ $ BEGIN BULK $ $ $ ****************** Loads ************************************** $ $ LOAD 101 1.0 2375000.57110 2375000.57111 35000. 57200 35000. 57201 0.0 57500 0.0 57501 1271250.57180 1271250.57181 1006000.57112 1006000.57113 $ $ LOAD 102 1.0 1051000.57192 1051000.57193 $ $ LOAD 201 1.0 23313.0 58710 427.35 58401 852.511 58301 2919.71 58307 1875.56 58303 0.0 58304 261.188 58305 2375000.57110 2375000.57111 35000. 57200 35000. 57201 0.0 57500 0.0 57501 1250000.57180 1250000.57181 1006000.57112 1006000.57113 0.0 57230 0.0 57231 0.0 57530 0.0 57531 $ $ LOAD 202 1.0 1051000.57192 1051000.57193 $ $ $ *************************************************************** $ $ PARAM,AUTOSPC,YES PARAM,CHECKEL,NO PARAM,PRGPST,NO PARAM,POST,0 $ $ $ $ EIGRL 1 0. 30 EIGRL 2 0. 30 $ $ $-------$-------$------- TEMPD 4103 293.0 TEMPD 3050 293.0 TEMPD 9999 300.0 $ $-------$-------$-------$-------$------- SPCADD 500 501 SPC 501 201856 123456 0.0 $ $ ********* Boundary Condition - FULLY FIXED AT I/F BME-RIE ********** $ RBE2 201856 201856 123456 201500 201505 201510 201515 201520 201525 201530 201535 201540 201545 201550 201555 201560 201565 201570 201575 201580 201585 201590 201595 201600 201605 201610 201615 201620 201625 201630 201635 201640 201645 201650 201655 201660 201665 201670 201675 201680 201685 201690 201695 201700 201705 201710 201715 201720 201725 201730 201735 201740 201745 201750 201755 201760 201765 201770 201775 201780 201785 201790 201795 201800 201805 201810 201815 201820 201825 201830 201835 201840 201845 201850 201855 GRID 201856 201 0. 0. 3.74 $ $ $ $ ********* DMIG ****************************************************** $ INCLUDE'CONDENSED_PARTS_gto_sl.pch' INCLUDE'Ground_PAX_v2.bdf' INCLUDE'Ground_KAAX_v2.bdf' $ $ ********* Model ****************************************************** $ INCLUDE 'ASET-Nodes_SL_def.bdf' INCLUDE 'Ground_LC1-LC2_MODEL.bdf' $ $ ********* Loads ****************************************************** $ INCLUDE 'Ground_LC1-LC2_LOADS.bdf' INCLUDE'Ground_LLC1-LC2_TEMPS.bdf' $ $ ENDDATARE: SOL 101 and 103 run perfectly, but SOL 105 gives excessive pivot ratios
Can you post the relevant sections of the sol105 f06 file?
RE: SOL 101 and 103 run perfectly, but SOL 105 gives excessive pivot ratios
The DMIGs are a requirement of the customer...
Why do you mean by the relevant sections? What exactly do you want me to post?
Thanks in advance,
Jose
RE: SOL 101 and 103 run perfectly, but SOL 105 gives excessive pivot ratios
Can you post the portion of the f06 upto the point when the job fatal's out?
RE: SOL 101 and 103 run perfectly, but SOL 105 gives excessive pivot ratios
CODE -->
1 JUNE 24, 2014 MSC.NASTRAN 12/21/10 PAGE 1 0 N A S T R A N F I L E A N D S Y S T E M P A R A M E T E R E C H O 0 NASTRAN BUFFSIZE=35000 $(C:/MSC.SOFTWARE/MSC_NASTRAN/20101/CONF/NAST20101.RCF[2] NASTRAN DBCFACT=4 $(C:/MSC.SOFTWARE/MSC_NASTRAN/20101/CONF/NAST20101.RCF[9]) NASTRAN PARALLEL=4 $(COMMAND LINE[2]) NASTRAN REAL=2144075776 $(PROGRAM DEFAULT) NASTRAN BUFFSIZE=35073 $(C:/MSC.SOFTWARE/MSC_NASTRAN/20101/CONF/NAST20101.RCF[2] 1 JUNE 24, 2014 MSC.NASTRAN 12/21/10 PAGE 2 0 N A S T R A N E X E C U T I V E C O N T R O L E C H O 0 SOL 105 CEND 1 JUNE 24, 2014 MSC.NASTRAN 12/21/10 PAGE 3 0 0 C A S E C O N T R O L E C H O COMMAND COUNT 1 ECHO = NONE 2 $$---------------------------------------------------------------------- -------- 3 $$ CASE CONTROL CARDS $ 4 $$---------------------------------------------------------------------- -------- 5 $ 6 K2GG=KAAX,KAAGGX 7 P2G=PAX 8 $ 9 $ ******************* SUBCASE *********************************** 10 SUBCASE 1 11 SUBTITLE=LC1 - GROUND - REVERSE PRESSURE - PRELOAD 12 LOAD=101 13 TEMP=9999 14 SPC=500 15 DISP(PLOT)=ALL 16 STRESS(PLOT)=ALL 17 $ 18 SUBCASE 2 19 SUBTITLE=LC1 - GROUND - REVERSE PRESSURE - LIFELOAD 20 LOAD=102 21 SPC=500 22 DISP(PLOT)=ALL 23 STRESS(PLOT)=ALL 24 $ 25 SUBCASE 3 26 SUBTITLE=LC2 - GROUND - FILLING(ATAT) - PRELOAD 27 LOAD=201 28 TEMP=4103 29 SPC=500 30 DISP(PLOT)=ALL 31 STRESS(PLOT)=ALL 32 $ 33 SUBCASE 4 34 SUBTITLE=LC2 - GROUND - FILLING(ATAT) - LIFELOAD 35 LOAD=202 36 SPC=500 37 DISP(PLOT)=ALL 38 STRESS(PLOT)=ALL 39 $ 40 $ 41 SUBCASE 10 42 SUBTITLE=LC1 - GROUND - REVERSE PRESSURE - BUCKLING 43 STATSUB(PRELOAD)=1 44 STATSUB(BUCKLING)=2 45 VECTOR(PLOT)=ALL 46 METHOD=1 47 $ 48 SUBCASE 11 49 SUBTITLE=LC2 - GROUND - FILLING(ATAT) - BUCKLING 50 STATSUB(PRELOAD)=3 1 JUNE 24, 2014 MSC.NASTRAN 12/21/10 PAGE 4 0 0 C A S E C O N T R O L E C H O COMMAND COUNT 51 STATSUB(BUCKLING)=4 52 VECTOR(PLOT)=ALL 53 METHOD=2 54 $ 55 $ 56 $ *************************************************************** 57 $ 58 $ 59 BEGIN BULK *** USER WARNING MESSAGE 324 (XSORSO) BLANK ENTRIES ENCOUNTERED WILL BE IGNORED. 0 INPUT BULK DATA ENTRY COUNT =******** 0 TOTAL COUNT= 202775961 1 JUNE 24, 2014 MSC.NASTRAN 12/21/10 PAGE 5 0 0 D U P L I C A T E B U L K D A T A D E L E T I O N S U M M A R Y DPBLKTOL (SYSTEM 402) = 0.0 (DEFAULT) ALL FIELDS OF DELETED BULKDATA ENTRIES MUST BE EXACTLY IDENTICAL. FIELDS ARE CONSIDERED EXACTLY IDENTICAL IF THE CORRESPONDING CHARACTERS ARE THE SAME. ONE OR MORE GRID ENTRIES WITH THE FOLLOWING ID(S) HAVE BEEN REMOVED AS A DUPLICATE: 826000 826010 826017 826025 826032 826040 826050 826060 826070 826080 826090 826100 826107 826115 826122 826130 826140 826150 826160 826170 826180 826190 826197 826205 826212 826220 826230 826240 826250 826260 826270 826280 826287 826295 826302 826310 826320 826330 826340 826350 E N T R Y D E L E T I O N C O U N T ENTRY ENTRIES ENTRIES NAME FOUND DELETED ---------- ---------- ---------- CORD2C 5 0 CORD2R 5 0 CORD2S 2 0 GRID 611937 40 ^^^ ^^^ >>> IFP OPERATIONS COMPLETE <<< ^^^ *** USER WARNING MESSAGE 4124 (IFS3P) THE SPCADD OR MPCADD UNION CONSISTS OF A SINGLE SET. M O D E L S U M M A R Y NUMBER OF GRID POINTS = 611897 NUMBER OF CBEAM ELEMENTS = 96 NUMBER OF CHEXA ELEMENTS = 452262 NUMBER OF CPENTA ELEMENTS = 328 NUMBER OF RBE2 ELEMENTS = 2102 NUMBER OF RBE3 ELEMENTS = 219 1 JUNE 24, 2014 MSC.NASTRAN 12/21/10 PAGE 6 0 0 0 0 *** USER INFORMATION MESSAGE 7555 (EHEXGD) FINITE ELEMENT GEOMETRY CHECK RESULTS EXCEED TOLERANCE LEVELS FOR THE FOLLOWING ELEMENTS. METRIC VALUES THAT EXCEED TEST TOLERANCE LIMITS ARE IDENTIFIED BY ONE OF THE FOLLOWING FLAGS PLACED TO THE RIGHT OF THE METRIC VALUE. "++++" FOR TEST RESULTS EXCEEDING TOLERANCES. INFORMATIONAL ONLY. PROBLEM SOLUTION CONTINUES. (DEFAULT FLAG) "IGNR" FOR TEST RESULTS EXCEEDING TOLERANCES. INFORMATIONAL ONLY. PROBLEM SOLUTION CONTINUES. "WARN" FOR TEST RESULTS EXCEEDING TOLERANCES. INFORMATIONAL ONLY. PROBLEM SOLUTION CONTINUES. "FAIL" FOR TEST RESULTS EXCEEDING TOLERANCES. SEVERE ERROR. PROBLEM SOLUTION TERMINATES. USER ACTION: USE THE GEOMCHECK (EXECUTIVE CONTROL STATEMENT) KEYWORD=VALUE TO CHANGE TOLERANCE VALUES IF DESIRED. A MAXIMUM OF 100 EDGE LENGTH ASPECT RATIO (AR) TOLERANCE LIMIT VIOLATIONS WILL BE IDENTIFIED BY THE FLAG "++++" PLACED AFTER THE VALUE METRIC FOR THE TEST. A MAXIMUM OF 100 EDGE NODE POINT LENGTH RATIO (ER) TOLERANCE LIMIT VIOLATIONS WILL BE IDENTIFIED BY THE FLAG "++++" PLACED AFTER THE VALUE METRIC FOR THE TEST. A MAXIMUM OF 100 EDGE NODE POINT ANGLE LIMIT (EA) TOLERANCE LIMIT VIOLATIONS WILL BE IDENTIFIED BY THE FLAG "++++" PLACED AFTER THE VALUE METRIC FOR THE TEST. ALL NEG/ZERO DET(JACOBIAN) VALUE (DJ) TOLERANCE LIMIT VIOLATIONS WILL BE IDENTIFIED BY THE FLAG "FAIL" PLACED AFTER THE VALUE METRIC FOR THE TEST. NEGATIVE DET(J) VALUES INDICATE THAT ONE OR MORE DET(J) SIGN CHANGES HAVE OCCURED FOR THE ELEMENT. A MAXIMUM OF 100 WARPED FACE COEFFICIENT TOLERANCE LIMIT VIOLATIONS WILL BE IDENTIFIED BY THE FLAG "++++" PLACED AFTER THE VALUE METRIC FOR THE TEST. USER INFORMATION: THE MAXIMUM MESSAGE COUNT FOR ANY ONE ELEMENT ERROR TEST COULD BE EXCEEDED BY THE CUMULATIVE EFFECT OF ALL THE MESSAGES GENERATED FOR ALL OF THE DIFFERENT TESTS PERFORMED. 1 JUNE 24, 2014 MSC.NASTRAN 12/21/10 PAGE 7 0 TEST THRESHOLD VALUES: HEX_AR = 100.00, HEX_EPLR = 0.50, HEX_EPIA = 150.00, HEX_DETJ = 0.00, HEX_WARP = 0.71 (VISUAL FLAGS ARE DISPLAYED AFTER TEST VALUES THAT EXCEED THE TEST THRESHOLDS AS DISCUSSED ABOVE.) ELEMENT ELEMENT LONGEST SHORTEST ASPECT EDGE POINT EDGE POINT MIN. JACOBIAN FACE WARP TYPE ID EDGE EDGE RATIO LENGTH RATIO ANGLE DETERMINANT COEFFICIENT HEXA 57660425 0.02 0.00 24.14 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.68 ++++ HEXA 57660433 0.02 0.00 24.12 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.68 ++++ HEXA 57660512 0.02 0.00 24.14 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.68 ++++ HEXA 57660520 0.02 0.00 24.11 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.68 ++++ HEXA 57899416 0.01 0.00 4.98 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.69 ++++ HEXA 57899417 0.01 0.00 5.29 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.69 ++++ HEXA 57986156 0.01 0.01 1.71 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.69 ++++ HEXA 58896125 0.02 0.00 9.29 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.62 ++++ HEXA 58896127 0.01 0.00 8.50 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.58 ++++ HEXA 58896144 0.01 0.00 3.39 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.53 ++++ HEXA 58896152 0.01 0.00 3.60 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.54 ++++ HEXA 58896153 0.01 0.00 3.35 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.35 ++++ HEXA 58896165 0.01 0.00 3.54 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.45 ++++ HEXA 58896167 0.01 0.00 3.60 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.45 ++++ HEXA 58896168 0.01 0.00 3.01 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.50 ++++ HEXA 58896171 0.01 0.00 4.38 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.35 ++++ HEXA 58896178 0.01 0.00 3.34 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.54 ++++ HEXA 58896191 0.01 0.00 4.02 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.53 ++++ HEXA 58896213 0.01 0.00 3.93 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.67 ++++ HEXA 58896225 0.01 0.00 4.97 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.67 ++++ HEXA 58896226 0.01 0.00 3.97 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.67 ++++ HEXA 58896231 0.02 0.00 4.85 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.43 ++++ HEXA 58896234 0.01 0.00 2.54 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.49 ++++ HEXA 58896235 0.02 0.00 5.70 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.43 ++++ HEXA 58896237 0.02 0.00 9.20 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.61 ++++ HEXA 58896239 0.01 0.00 8.42 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.61 ++++ HEXA 58896256 0.01 0.00 3.39 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.53 ++++ HEXA 58896264 0.01 0.00 3.60 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.53 ++++ HEXA 58896265 0.01 0.00 5.39 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.65 ++++ HEXA 58896277 0.01 0.00 3.54 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.47 ++++ HEXA 58896279 0.01 0.00 3.60 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.47 ++++ HEXA 58896280 0.01 0.00 3.01 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.51 ++++ HEXA 58896283 0.01 0.00 5.61 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.65 ++++ HEXA 58896285 0.02 0.00 4.26 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.54 ++++ HEXA 58896287 0.02 0.00 4.24 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.54 ++++ HEXA 58896290 0.01 0.00 3.32 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.64 ++++ HEXA 58896303 0.01 0.00 4.01 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.53 ++++ HEXA 58896325 0.01 0.00 3.93 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.68 ++++ HEXA 58896337 0.01 0.00 4.97 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.67 ++++ HEXA 58896338 0.01 0.00 3.96 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.68 ++++ HEXA 58896343 0.02 0.00 4.76 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.35 ++++ HEXA 58896346 0.01 0.00 2.51 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.40 ++++ 1 JUNE 24, 2014 MSC.NASTRAN 12/21/10 PAGE 8 0 TEST THRESHOLD VALUES: HEX_AR = 100.00, HEX_EPLR = 0.50, HEX_EPIA = 150.00, HEX_DETJ = 0.00, HEX_WARP = 0.71 (VISUAL FLAGS ARE DISPLAYED AFTER TEST VALUES THAT EXCEED THE TEST THRESHOLDS AS DISCUSSED ABOVE.) ELEMENT ELEMENT LONGEST SHORTEST ASPECT EDGE POINT EDGE POINT MIN. JACOBIAN FACE WARP TYPE ID EDGE EDGE RATIO LENGTH RATIO ANGLE DETERMINANT COEFFICIENT HEXA 58896347 0.02 0.00 5.60 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.35 ++++ HEXA 58896350 0.02 0.00 5.64 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.38 ++++ HEXA 58896351 0.01 0.00 2.46 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.46 ++++ HEXA 58896354 0.02 0.00 4.80 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.38 ++++ HEXA 58896359 0.01 0.00 3.99 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.66 ++++ HEXA 58896360 0.01 0.00 4.96 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.65 ++++ HEXA 58896372 0.01 0.00 3.97 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.66 ++++ HEXA 58896394 0.01 0.00 4.01 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.53 ++++ HEXA 58896407 0.01 0.00 3.30 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.61 ++++ HEXA 58896410 0.02 0.00 4.25 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.54 ++++ HEXA 58896412 0.02 0.00 4.26 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.54 ++++ HEXA 58896414 0.01 0.00 5.61 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.65 ++++ HEXA 58896417 0.01 0.00 3.01 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.51 ++++ HEXA 58896418 0.01 0.00 3.60 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.47 ++++ HEXA 58896420 0.01 0.00 3.54 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.47 ++++ HEXA 58896432 0.01 0.00 5.38 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.65 ++++ HEXA 58896433 0.01 0.00 3.61 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.52 ++++ HEXA 58896441 0.01 0.00 3.38 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.52 ++++ HEXA 58896458 0.01 0.00 8.46 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.60 ++++ HEXA 58896460 0.02 0.00 9.24 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.63 ++++ HEXA 58896462 0.02 0.00 5.53 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.36 ++++ HEXA 58896463 0.01 0.00 2.52 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.41 ++++ HEXA 58896466 0.02 0.00 4.70 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.36 ++++ HEXA 58896471 0.01 0.00 3.99 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.66 ++++ HEXA 58896472 0.01 0.00 4.96 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.65 ++++ HEXA 58896484 0.01 0.00 3.97 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.66 ++++ HEXA 58896506 0.01 0.00 4.01 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.53 ++++ HEXA 58896519 0.01 0.00 3.37 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.62 ++++ HEXA 58896522 0.02 0.00 4.27 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.53 ++++ HEXA 58896524 0.02 0.00 4.29 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.53 ++++ HEXA 58896526 0.01 0.00 5.60 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.63 ++++ HEXA 58896529 0.01 0.00 3.01 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.51 ++++ HEXA 58896530 0.01 0.00 3.60 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.47 ++++ HEXA 58896532 0.01 0.00 3.54 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.47 ++++ HEXA 58896544 0.01 0.00 5.38 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.63 ++++ HEXA 58896545 0.01 0.00 3.60 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.52 ++++ HEXA 58896551 0.01 0.00 4.56 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.55 ++++ HEXA 58896553 0.01 0.00 3.39 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.52 ++++ HEXA 58896556 0.02 0.00 6.02 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.55 ++++ HEXA 58896570 0.01 0.00 8.44 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.61 ++++ HEXA 58896572 0.02 0.00 9.22 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.62 ++++ HEXA 58896573 0.02 0.00 9.22 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.62 ++++ 1 JUNE 24, 2014 MSC.NASTRAN 12/21/10 PAGE 9 0 TEST THRESHOLD VALUES: HEX_AR = 100.00, HEX_EPLR = 0.50, HEX_EPIA = 150.00, HEX_DETJ = 0.00, HEX_WARP = 0.71 (VISUAL FLAGS ARE DISPLAYED AFTER TEST VALUES THAT EXCEED THE TEST THRESHOLDS AS DISCUSSED ABOVE.) ELEMENT ELEMENT LONGEST SHORTEST ASPECT EDGE POINT EDGE POINT MIN. JACOBIAN FACE WARP TYPE ID EDGE EDGE RATIO LENGTH RATIO ANGLE DETERMINANT COEFFICIENT HEXA 58896575 0.01 0.00 8.44 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.61 ++++ HEXA 58896592 0.01 0.00 3.38 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.52 ++++ HEXA 58896600 0.01 0.00 3.60 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.52 ++++ HEXA 58896601 0.01 0.00 5.04 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.54 ++++ HEXA 58896613 0.01 0.00 3.54 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.47 ++++ HEXA 58896615 0.01 0.00 3.60 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.47 ++++ HEXA 58896616 0.01 0.00 3.01 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.51 ++++ HEXA 58896619 0.01 0.00 5.60 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.54 ++++ HEXA 58896621 0.02 0.00 4.23 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.42 ++++ HEXA 58896623 0.02 0.00 4.81 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.42 ++++ HEXA 58896626 0.01 0.00 3.35 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.62 ++++ HEXA 58896639 0.01 0.00 4.01 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.53 ++++ HEXA 58896661 0.01 0.00 3.90 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.66 ++++ HEXA 58896673 0.01 0.00 4.96 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.65 ++++ HEXA 58896674 0.01 0.00 3.78 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.66 ++++ HEXA 58896679 0.02 0.00 4.85 N/A- ONLY 8 NODE N/A- ONLY 8 NODE 0.00 0.35 ++++ 1 JUNE 24, 2014 MSC.NASTRAN 12/21/10 PAGE 10 0 E L E M E N T G E O M E T R Y T E S T R E S U L T S S U M M A R Y TOTAL NUMBER OF TIMES TOLERANCES WERE EXCEEDED ELEMENT SKEW ASPECT/ MINIMUM MAXIMUM SURFACE/FACE OFFSET EDGE POINT EDGE POINT JACOBIAN TYPE ANGLE TAPER RATIO INTER. ANGLE INTER. ANGLE WARP FACTOR RATIO LENGTH RATIO ANGLE LIMIT DETERMINANT BEAM N/A N/A N/A N/A N/A 0 N/A N/A N/A HEXA N/A 0 N/A N/A 104 N/A 0 0 0 PENTA N/A 0 N/A N/A 0 N/A 0 0 0 N/A IN THE ABOVE TABLE INDICATES TESTS THAT ARE NOT APPLICABLE TO THE ELEMENT TYPE AND WERE NOT PERFORMED. FOR ALL ELEMENTS WHERE GEOMETRY TEST RESULTS HAVE EXCEEDED TOLERANCES, HEXA ELEMENT ID 58896343 PRODUCED SMALLEST FACE WARP FACTOR OF 0.35 (TOLERANCE = 0.71). *** USER WARNING MESSAGE 3204 (SSG1) UNABLE TO FIND SELECTED SET ( 57110) IN TABLE (SLT ) IN SUBROUTINE (SSG1). *** USER WARNING MESSAGE 3204 (SSG1) UNABLE TO FIND SELECTED SET ( 57112) IN TABLE (SLT ) IN SUBROUTINE (SSG1). *** USER WARNING MESSAGE 3204 (SSG1) UNABLE TO FIND SELECTED SET ( 57180) IN TABLE (SLT ) IN SUBROUTINE (SSG1). *** USER WARNING MESSAGE 3204 (SSG1) UNABLE TO FIND SELECTED SET ( 57181) IN TABLE (SLT ) IN SUBROUTINE (SSG1). *** USER WARNING MESSAGE 3204 (SSG1) UNABLE TO FIND SELECTED SET ( 57200) IN TABLE (SLT ) IN SUBROUTINE (SSG1). *** USER WARNING MESSAGE 3204 (SSG1) UNABLE TO FIND SELECTED SET ( 57500) IN TABLE (SLT ) IN SUBROUTINE (SSG1). *** USER WARNING MESSAGE 3204 (SSG1) UNABLE TO FIND SELECTED SET ( 57192) IN TABLE (SLT ) IN SUBROUTINE (SSG1). *** USER WARNING MESSAGE 3204 (SSG1) UNABLE TO FIND SELECTED SET ( 57110) IN TABLE (SLT ) IN SUBROUTINE (SSG1). *** USER WARNING MESSAGE 3204 (SSG1) UNABLE TO FIND SELECTED SET ( 57112) IN TABLE (SLT ) IN SUBROUTINE (SSG1). *** USER WARNING MESSAGE 3204 (SSG1) UNABLE TO FIND SELECTED SET ( 57180) IN TABLE (SLT ) IN SUBROUTINE (SSG1). *** USER WARNING MESSAGE 3204 (SSG1) UNABLE TO FIND SELECTED SET ( 57181) IN TABLE (SLT ) IN SUBROUTINE (SSG1). *** USER WARNING MESSAGE 3204 (SSG1) UNABLE TO FIND SELECTED SET ( 57200) IN TABLE (SLT ) IN SUBROUTINE (SSG1). 1 JUNE 24, 2014 MSC.NASTRAN 12/21/10 PAGE 11 0 0 0 0 *** USER WARNING MESSAGE 3204 (SSG1) UNABLE TO FIND SELECTED SET ( 57230) IN TABLE (SLT ) IN SUBROUTINE (SSG1). *** USER WARNING MESSAGE 3204 (SSG1) UNABLE TO FIND SELECTED SET ( 57500) IN TABLE (SLT ) IN SUBROUTINE (SSG1). *** USER WARNING MESSAGE 3204 (SSG1) UNABLE TO FIND SELECTED SET ( 57530) IN TABLE (SLT ) IN SUBROUTINE (SSG1). *** USER WARNING MESSAGE 3204 (SSG1) UNABLE TO FIND SELECTED SET ( 58303) IN TABLE (SLT ) IN SUBROUTINE (SSG1). *** USER WARNING MESSAGE 3204 (SSG1) UNABLE TO FIND SELECTED SET ( 58304) IN TABLE (SLT ) IN SUBROUTINE (SSG1). *** USER WARNING MESSAGE 3204 (SSG1) UNABLE TO FIND SELECTED SET ( 58305) IN TABLE (SLT ) IN SUBROUTINE (SSG1). *** USER WARNING MESSAGE 3204 (SSG1) UNABLE TO FIND SELECTED SET ( 57192) IN TABLE (SLT ) IN SUBROUTINE (SSG1). 1 JUNE 24, 2014 MSC.NASTRAN 12/21/10 PAGE 12 0 *** USER INFORMATION MESSAGE 7310 (VECPRN) ORIGIN OF SUPERELEMENT BASIC COORDINATE SYSTEM WILL BE USED AS REFERENCE LOCATION. RESULTANTS ABOUT ORIGIN OF SUPERELEMENT BASIC COORDINATE SYSTEM IN SUPERELEMENT BASIC SYSTEM COORDINATES. 0 OLOAD RESULTANT SUBCASE/ LOAD DAREA ID TYPE T1 T2 T3 R1 R2 R3 0 1 FX -3.093766E+04 ---- ---- ---- 5.784622E+03 -7.216881E+03 FY ---- 3.272818E+03 ---- -7.800531E+03 ---- 1.131061E+05 FZ ---- ---- 2.669954E+02 7.735908E+03 -1.532691E+04 ---- MX ---- ---- ---- 4.466352E+00 ---- ---- MY ---- ---- ---- ---- -1.359086E+00 ---- MZ ---- ---- ---- ---- ---- 1.273146E+01 TOTALS -3.093766E+04 3.272818E+03 2.669954E+02 -6.015674E+01 -9.543644E+03 1.059020E+05 0 2 FX 2.382909E+06 ---- ---- ---- -6.243828E+03 1.078259E+04 FY ---- -6.638940E+01 ---- -1.382242E+03 ---- -1.298495E+04 FZ ---- ---- -2.043588E+02 1.387092E+03 1.282126E+04 ---- MX ---- ---- ---- 1.097630E+00 ---- ---- MY ---- ---- ---- ---- 4.965497E-03 ---- MZ ---- ---- ---- ---- ---- -5.295955E+00 TOTALS 2.382909E+06 -6.638940E+01 -2.043588E+02 5.947266E+00 6.577434E+03 -2.207661E+03 0 3 FX -5.205334E+04 ---- ---- ---- -3.067152E+04 -2.504951E+04 FY ---- -2.579148E+05 ---- 2.346708E+05 ---- -6.551628E+06 FZ ---- ---- 3.522443E+04 1.927350E+05 -1.032822E+06 ---- MX ---- ---- ---- -1.224908E+01 ---- ---- MY ---- ---- ---- ---- -3.341261E+00 ---- MZ ---- ---- ---- ---- ---- -1.369588E+02 TOTALS -5.205334E+04 -2.579148E+05 3.522443E+04 4.273936E+05 -1.063497E+06 -6.576815E+06 0 4 FX 2.382909E+06 ---- ---- ---- -6.243828E+03 1.078259E+04 FY ---- -6.638940E+01 ---- -1.382242E+03 ---- -1.298495E+04 FZ ---- ---- -2.043588E+02 1.387092E+03 1.282126E+04 ---- MX ---- ---- ---- 1.097630E+00 ---- ---- MY ---- ---- ---- ---- 4.965497E-03 ---- MZ ---- ---- ---- ---- ---- -5.295955E+00 TOTALS 2.382909E+06 -6.638940E+01 -2.043588E+02 5.947266E+00 6.577434E+03 -2.207661E+03 1 JUNE 24, 2014 MSC.NASTRAN 12/21/10 PAGE 13 0 *** USER INFORMATION MESSAGE 7310 (VECPRN) ORIGIN OF SUPERELEMENT BASIC COORDINATE SYSTEM WILL BE USED AS REFERENCE LOCATION. RESULTANTS ABOUT ORIGIN OF SUPERELEMENT BASIC COORDINATE SYSTEM IN SUPERELEMENT BASIC SYSTEM COORDINATES. 0 OLOAD RESULTANT SUBCASE/ LOAD DAREA ID TYPE T1 T2 T3 R1 R2 R3 0 10 FX 1.457537E+06 ---- ---- ---- 6.565476E+03 -7.065631E+03 FY ---- 3.294975E+03 ---- -7.801710E+03 ---- 1.137743E+05 FZ ---- ---- -2.040499E+01 7.735051E+03 -6.837568E+03 ---- MX ---- ---- ---- 4.466352E+00 ---- ---- MY ---- ---- ---- ---- -1.359086E+00 ---- MZ ---- ---- ---- ---- ---- 1.273146E+01 TOTALS 1.457537E+06 3.294975E+03 -2.040499E+01 -6.219287E+01 -2.734512E+02 1.067214E+05 0 11 FX 9.582796E+05 ---- ---- ---- -6.878315E+03 1.044271E+04 FY ---- -2.052943E+02 ---- -1.375786E+03 ---- -1.709664E+04 FZ ---- ---- 2.929543E+01 1.373877E+03 5.924783E+03 ---- MX ---- ---- ---- 1.097630E+00 ---- ---- MY ---- ---- ---- ---- 4.965497E-03 ---- MZ ---- ---- ---- ---- ---- -5.295955E+00 TOTALS 9.582796E+05 -2.052943E+02 2.929543E+01 -8.116455E-01 -9.535269E+02 -6.659222E+03 *** SYSTEM INFORMATION MESSAGE 4159 (DFMSA) THE DECOMPOSITION OF KLL YIELDS A MAXIMUM MATRIX-TO-FACTOR-DIAGONAL RATIO OF 3.970729E+04 *** USER INFORMATION MESSAGE 4158 (DFMSA) ---- STATISTICS FOR SPARSE DECOMPOSITION OF DATA BLOCK KLL FOLLOW NUMBER OF NEGATIVE TERMS ON FACTOR DIAGONAL = 1 MAXIMUM RATIO OF MATRIX DIAGONAL TO FACTOR DIAGONAL = 8.8E+08 AT ROW NUMBER 75953 *** SYSTEM INFORMATION MESSAGE 4159 (DFMSA) THE DECOMPOSITION OF KLL YIELDS A MAXIMUM MATRIX-TO-FACTOR-DIAGONAL RATIO OF 8.799964E+08 *** USER WARNING MESSAGE 4698 (DCMPD) STATISTICS FOR DECOMPOSITION OF MATRIX KLL. THE FOLLOWING DEGREES OF FREEDOM HAVE FACTOR DIAGONAL RATIOS GREATER THAN 1.000000E+07 OR HAVE NEGATIVE TERMS ON THE FACTOR DIAGONAL. USER INFORMATION: THIS MESSAGE MAY BE IGNORED IF NO GRID POINT IDS OR HIGH RATIO MESSAGES APPEAR IN THE TABLE ON THE NEXT PAGE. 1 JUNE 24, 2014 MSC.NASTRAN 12/21/10 PAGE 14 0 SUBCASE 10 0 GRID POINT ID DEGREE OF FREEDOM MATRIX/FACTOR DIAGONAL RATIO MATRIX DIAGONAL 57004426 T1 -8.79996E+08 2.05308E+09 57004426 T2 2.05269E+08 8.17563E+08 57004426 T3 5.24272E+07 5.46972E+08 ^^^ ^^^ USER FATAL MESSAGE 9050 (SEKRRS) ^^^ RUN TERMINATED DUE TO EXCESSIVE PIVOT RATIOS IN MATRIX KLL. ^^^ USER ACTION: CONSTRAIN MECHANISMS WITH SPCI OR SUPORTI ENTRIES OR SPECIFY PARAM,BAILOUT,-1 TO CONTINUE THE RUN WITH MECHANISMS. 1 JUNE 24, 2014 MSC.NASTRAN 12/21/10 PAGE 15 0 SUBCASE 10 * * * * D B D I C T P R I N T * * * * SUBDMAP = PRTSUM , DMAP STATEMENT NO. 40RE: SOL 101 and 103 run perfectly, but SOL 105 gives excessive pivot ratios
I forgot to specify the SPC for the two buckling SCs.
Thanks a lot for your answers,
RE: SOL 101 and 103 run perfectly, but SOL 105 gives excessive pivot ratios
Your static subcases are good. The matrix decomp yields a max ratio of < 1e5
Its the buckling case (subcase 10) which is the culprit.
Essentially what nastran solves for subcase10 is:
[K+Kd(preload)+lambda*Kd(buckle)]{phi} = {0}
The solution to this is only possible if [K+kd(preload)] is not positive definite, i.e structure should not buckle for the applied pre-load.
Now, I have no clue what your structure looks like or the applied loads on it, but if I were you I'll start by investigating whether the pre-load is excessive. Note excessive pre-load can result in a wrong solution or no solution.
BTW, there are UWM's complaining about missing loadsets. Maybe you have looked into this, but I just thought its worthwhile to mention this.
Good Luck!!
RE: SOL 101 and 103 run perfectly, but SOL 105 gives excessive pivot ratios