op2 file

[seechew]

Do anyone know how to output op2 file?
I am confused on how to get op2 file.

[AeroDME]

There is no OP2 formatted output.

[SteveDoyle2]

The OP2 is supported with an alter.

ALTER      110
OUTPUT2    OUGV1,OEF1,OES1,,//-1/12////*MSC*  $
OUTPUT2    ,,,,, //-9/12/  $
ENDALTER  

[JuanP74]

this works for SOL 3 MODES: writes eigenvectors to op2 file (Fortran unit 12, change line to FTN12=$1.op2 in nastran batch command, typically /usr/bin/nastran in Ubuntu installations):

$
$ SOL 3 MODES ALTER to create op2 file compatible with MSC/NASTRAN
$
ALTER 82
OUTPUT2 OPHIG,,,,//-1/12//// * MSC * $
OUTPUT2 ,,,,, //-9/12/ $
ENDALTER
$

[JuanP74]

$
$ SOL 5 BUCKLING ALTER to create op2 file compatible with MSC/NASTRAN
$
ALTER 114
OUTPUT2 OPHIG,,,,//-1/12//// * MSC * $
OUTPUT2 ,,,,, //-9/12/ $
ENDALTER
$

[JuanP74]

I've just found out this more complete alter to get OP2 file for SOL 1. Can be called via READFILE COSOUT2 in case control deck.
COSOUT2.txt