*HEADING
 FREE VIBRATION OF SPHERICAL SHELL SAX1
*PREPRINT, ECHO=NO, MODEL=NO, HISTORY=NO
*NODE
*NGEN,LINE=C
*ELEMENT,TYPE=SAX1
*ELGEN,ELSET=EALL
*SHELL SECTION,MATERIAL=MAT1,ELSET=EALL
 0.03,3
*MATERIAL,NAME=MAT1
*ELASTIC
 180E9,0.333333
*DENSITY
 7670,
*RESTART,WRITE
*STEP
*FREQUENCY, eigensolver=lanczos, SIM=NO
 20, , ,1000
*EL PRINT,FREQUENCY=0
*NODE PRINT,FREQUENCY=0
*MODAL FILE
*OUTPUT,HISTORY,FREQUENCY=1
*MODAL OUTPUT
*END STEP