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NX Nastran topology optimization with SOL101

NX Nastran topology optimization with SOL101

NX Nastran topology optimization with SOL101

(OP)
Hallo all,

for the input file below I'll get the following error messages.
I'd like to minimize mass (MASS) while the compliance(COMP) stays above 80% of the starting compliance.

*** USER FATAL MESSAGE 5006 (APPEND)
INPUT FILES HAVE DIFFERENT RECORD TYPES
*** SYSTEM FATAL MESSAGE 3007 (APPEND)
ILLEGAL INPUT TO SUBROUTINE APPEND
0FATAL ERROR

Has anyone an idea, how to deal with it?

Kind regards
Fite



SOL 101
CEND
METHOD=1
SET 1 = 5,35
ESE(PLOT,AVERAGE,THRES=0.0) = ALL
DISPLACEMENT = ALL
GPFORCE = 1
LOAD = 1
BEGIN BULK
FORCE,1,5,,1.0E5,0.0,0.0,-1.0
PARAM,POST,-2
PARAM,GRDPNT,0
PARAM,ITOPOPT,2
PARAM,ITOMXITR,20
PARAM,ITODENS,2.588e-4
GRID,1,,0.,0.,0.,,123456
GRID,2,,1.,0.,0.
GRID,3,,2.,0.,0.
GRID,4,,3.,0.,0.
GRID,5,,4.,0.,0.
GRID,11,,0.,1.,0.,,123456
GRID,12,,1.,1.,0.
GRID,13,,2.,1.,0.
GRID,14,,3.,1.,0.
GRID,15,,4.,1.,0.
GRID,21,,0.,2.,0.,,123456
GRID,22,,1.,2.,0.
GRID,23,,2.,2.,0.
GRID,24,,3.,2.,0.
GRID,25,,4.,2.,0.
GRID,31,,0.,3.,0.,,123456
GRID,32,,1.,3.,0.
GRID,33,,2.,3.,0.
GRID,34,,3.,3.,0.
GRID,35,,4.,3.,0.
MAT1 1001 11.538+6.3 2.588-4 1.E-6 0.
PSHELL 101 1001 1.0 1001
CQUAD4,1,101,1,2,12,11
CQUAD4,2,101,2,3,13,12
CQUAD4,3,101,3,4,14,13
CQUAD4,4,101,4,5,15,14
CQUAD4,5,101,11,12,22,21
CQUAD4,6,101,12,13,23,22
CQUAD4,7,101,13,14,24,23
CQUAD4,8,101,14,15,25,24
CQUAD4,15,101,21,22,32,31
CQUAD4,16,101,22,23,33,32
CQUAD4,17,101,23,24,34,33
CQUAD4,18,101,24,25,35,34
$ Design variable matrix
$dmi,efill,0,2,1,2,,3,2
$dmi,efill,1,1,33.,6.,1.00
$dmi,efill,2,1,33.,7.,1.00
$
$ Design variable matrix
dmi,efill,0,2,1,2,,3,2
dmi,efill,1,1,33.,6.,1.00
dmi,efill,2,1,33.,7.,1.00
$ Design objective table
DTI,OBJT,0,2
DTI,OBJT,1,MASS,1,1.0,ENDREC
DTI,OBJT,2,COMP,0,-0.8,ENDREC
enddata

RE: NX Nastran topology optimization with SOL101

For optimization, you need to use SOL200

RE: NX Nastran topology optimization with SOL101

(OP)
Hi,

generally spoken, you are right. But SOL200 does not support topology optimization!!!
That's why your answer is of no benefit at all.

Kind regards

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