*HEADING
EC35SFE1: EIGENVALUE ANALYSIS OF AN UNCONSTRAINED 1-ELEMENT MESH  [C3D5]
*PREPRINT,ECHO=YES,HISTORY=YES,MODEL=YES
*NODE, Nset=ODB_NSET
   1,0,0,0
  21,5.65e-2,0,0
  23,5.65e-2,5.6e-2,0
4001,0,0,5.65e-2
4021,5.65e-2,0,5.65e-2
*ELEMENT,TYPE=C3D5,ELSET=ALL
 1,  1, 4001,4021,21,23
*SOLID SECTION,MATERIAL=ALL,ELSET=ALL
*MATERIAL,NAME=ALL
*ELASTIC
 3.E6,0.3
*DENSITY
7.5E-4, 
**
** Sets added by addodb
**
*Elset,Elset=ODB_ESET
ALL,
**
**
*Nset, Nset=ODB_NSET
ODB_NSET, 
**
**
*STEP
*FREQUENCY, eigensolver=lanczos, SIM=NO
9, , ,-1.E6
*OUTPUT,FIELD
*MODAL OUTPUT
*OUTPUT,FIELD,VARIABLE=PRESELECT,OP=ADD,FREQUENCY=9999
*OUTPUT,FIELD, OP=ADD
*MODAL OUTPUT,VARIABLE=ALL
*OUTPUT,HISTORY,OP=ADD
*MODAL OUTPUT,VARIABLE=ALL
*ENDSTEP