*** ERROR # 827 ***

User: "seno"
New Altair Community Member
Updated by seno

FEM model for eigenvalue analysis was created with Femap with NASTRAN.

The file extension is dat.

However, the analysis at NASTRAN took a very long time.

So, I want to import this into HyperMesh, and perform eigenvalue analysis with Optistruct.

When I operated as shown, I got the following error:

 

tool.JPG.4db8d7e83666a9fb8b4433770286da02.JPG

 

<?xml version="1.0" encoding="UTF-8"?>solve.thumb.JPG.f4ce8aa71993bf2023ee9c4eb620ac74.JPG

 

*** ERROR # 827 ***

Invalid ASET run, PARAM,EXTOUT,DMIGPCH or

PARAM,EXTOUT,DMIGBIN must be specified for DMIG output.

 

How do I resolve the error?
Reference documents are more helpful.

Also, I want to perform frequency response analysis with Optistruct on the same model too.

The following is an excerpt of dat data.

 

INIT MASTER(S)
NASTRAN SYSTEM(319)=1
ID Neo66B,Femap
SOL SEMODES
TIME 10000
CEND
  TITLE = MSC/MD Nastran モード 解析セット
  ECHO = NONE
  MFLUID = 1
  DISPLACEMENT(PLOT) = ALL
  METHOD = 1
BEGIN BULK
$ ***************************************************************************
$   Written by : Femap with NX Nastran
$   Version    : 11.1.1
$   Translator : MSC/MD Nastran
$   From Model : D:\Neo66BC_Hull-vibration_Standard.modfem
$   Date       : Mon Jul 14 08:00:18 2014
$ ***************************************************************************
$
PARAM,POST,-1
PARAM,OGEOM,NO
PARAM,AUTOSPC,YES
PARAM,GRDPNT,0
EIGRL          1      .5     30.               0                    MASS
CORD2C         1       0      0.      0.      0.      0.      0.      1.+FEMAPC1
+FEMAPC1      1.      0.      1.        
CORD2S         2       0      0.      0.      0.      0.      0.      1.+FEMAPC2
+FEMAPC2      1.      0.      1.        
$ Femap with NX Nastran Constraint Set 1 : ASET
ASET           3     123
...
ASET       50126     123
$ Femap with NX Nastran Property 20108000 : Mat01_t8.0
PSHELL  20108000       1      8.       1               1              0.
...           
ELIST          1  200001  200002  200003  200004  200005  200006  200007+       
...
+         208872  208873  208874  208875  208876  208877                
$ Femap with NX Nastran Region 1 : 無題
MFLUID         1       0   5375. 1.025-9       1               N       N
ENDDATA

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