*HEADING
 BOTH ENDS SIMPLY SUPPORTED             
*PREPRINT,ECHO=YES,HISTORY=NO,MODEL=NO
*NODE
 1, 0.,0.
 11,5.,0.
*NGEN
 1,11
*ELEMENT,TYPE=B23
 1,1,2
*ELGEN,ELSET=EALL
 1,10
*BEAM SECTION,SECTION=CIRC,MATERIAL=A1,ELSET=EALL
 .1, 
*MATERIAL,NAME=A1
*ELASTIC
 27.E6, 
*DENSITY
 7.5E-4, 
*BOUNDARY
 1,1,3
 11,2
*STEP
 GET FREE VIBRATION FREQUENCIES AND MODE SHAPES
*FREQUENCY, eigensolver=lanczos, SIM=NO
 5, ,10000., 
*EL PRINT,FREQUENCY=0
*MODAL FILE
*END STEP