*HEADING
 Usage level: FAN=HUB+4xBLADES 
 Use of CYCLIC SYMMETRY
 One level substructure.
**
   Z100: a substructure for a single blade;
   Z200: a substructure which contains the 1/4 hub 
         and a substructure blade (Z100);
   Z300: a substructure which contains the 1/4 hub 
         and a full blade.
Requires substructure generation file fansubstr_gen3.inp
**
*RESTART,WRITE,FRE=1
**
*NODE
    1,   3.50000,   3.00000,   4.00000   
    3,   3.46638,   3.18024,   4.00000
    7,   3.18024,   3.46638,   4.00000
    9,   3.00000,   3.50000,   4.00000
**  
   31,   6.00000,   3.00000,   4.00000  
   33,   5.79830,   4.08144,   4.00000
   37,   4.08144,   5.79830,   4.00000   
   39,   3.00000,   6.00000,   4.00000
**
   91,   6.00000,   3.00000,   0.00000   
   93,   5.79830,   4.08144,   0.00000
   97,   4.08144,   5.79830,   0.00000 
   99,   3.00000,   6.00000,   0.00000
**
  100,   7.89643,   8.00249,   2.59810
 9998,   3.00000,   3.00000,   4.00000
 9999,   3.00000,   3.00000,   0.00000
*NGEN,LINE=C,NSET=NHUB
 1,3,1,9998
 3,7,1,9998
 7,9,1,9998
*NGEN,LINE=C,NSET=RINGF
 31,33,1,9998
 33,37,1,9998
 37,39,1,9998
*NGEN,LINE=C,NSET=RINGB
 91,93,1,9999
 93,97,1,9999
 97,99,1,9999
*NFILL,NSET=HUB
 NHUB,RINGF,3,10
 RINGF,RINGB,6,10
**
*NSET,NSET=PART1,GENERATE
 1,91,10
 9,99,10
 2,8,1
 32,38,1
 100,100,1
**
*NSET,NSET=PART1X,GENERATE
 11,91,10
*NSET,NSET=PART1Y,GENERATE
 19,99,10
*surface,type=node,name=secondary1
PART1Y,1.5
*surface,type=node,name=main1
PART1X,1.5
*TIE,CYCLICSYM,POSITION=0.5,NAME=TIE
 secondary1,main1
*CYCLIC SYMMETRY MODEL,N=4
3.,3.,0., 3.,3.,10.
**
*NSET,NSET=NODEHUB,GENERATE
   1,   9, 1
 102, 108, 1
 201, 209, 1
 302, 308, 1
**
*ELEMENT,TYPE=Z300,ELSET=P1,FILE=FAN
 901,1,2,3,4,5,6,7,8,9,11,19,21,29,31,32,
 33,34,35,36,37,38,39,41,49,51,59,61,69,71,79,81,
 89,91,99,100
**
*SUBSTRUCTURE PROPERTY,ELSET=P1
 0.,0.,0.
**
*NSET,NSET=NPRINT,GENERATE
 31,39,1
 61,69,1
**
*BOUNDARY
 NODEHUB,ENCASTRE
*STEP
 Step 2: Eigenfrequency extraction
*FREQUENCY,eigensolver=lanczos,normalization=mass
 20
*EL PRINT,FREQ=0
*EL FILE,FREQ=0
*NODE PRINT,FREQ=0 
*MODAL FILE,FREQ=99 
**
*END STEP