Use subseq with defined subcase ids

[suslu13]

Hi all

In the case below, i would like to combine subcase 90 and subcase 100 in a subcom.

I wrote like in the below however nastran does not understand. Could you please help me how to combine the loadcase with their ids.

1.5 * subcase 90 + 1.0* subcase 100

Regards


SUBCASE 90
LABEL= fx1000
SPC = 1
LOAD = 8
ANALYSIS = STATICS
DISPLACEMENT = ALL
STRESS = ALL
SUBCASE 100
LABEL= fx2000
SPC = 1
LOAD = 15
ANALYSIS = STATICS
DISPLACEMENT = ALL
STRESS = ALL
$
$Combine loadcases with defined id
SUBCOM 500
LABEL= loadstep1
SUBSEQ = 1.5,90,1.0,100
DISPLACEMENT = ALL
STRESS = ALL

 

[dmapguru]

Which Nastran are yo using? In MSC Nastran, SUBSEQ is used to define the _sequence_ IDs, not the number of the SUBCASEs. If you want to use SUBCASE numbers then use SUBSEQ1.