*HEADING
 INDIAN POINT WITH SPRING SUPPORTS--THREE SUBSTRUCTURE MODEL 
 3 SUBSTRUCTURES WITH "*MODAL DYNAMIC" FOR TIME HISTORIES
 REQUIRES SUBSTRUCTURE GENERATION FILES,indianpoint_3sub_gen1.inp
 indianpoint_3sub_gen2.inp and indianpoint_3sub_gen3.inp 
** SUBSTRUCTURE USAGE LEVEL COMMANDS
**
*RESTART,WRITE,FREQUENCY=100
**
** SPRING DEFINITIONS
**
*NODE
1, 0., 423., -234.96
3, 0., 423., -150.96
5, 0., 435., -138.96
6, 0., 474., -138.96
8, 0., 486., -126.96
10, 0., 486., -75.96
11, 0., 486., -51.96
12, 0., 486., -18.00
13, 0., 486., 9.00
15, 0., 486., 144.5
16, 0., 486., 159.
18, 8.484, 494.484, 171.
19, 8.484,494.484,171.
21, 16.93, 497.96, 171.
22, 19.8125, 497.96 , 171.
23, 29.125 ,497.96, 171.
*NGEN
1,3
8,10
13,15
*NGEN,LINE=C
3,5,1,, 0., 435., -150.96
6,8,1,, 0., 474., -126.96
16,18,1,, 8.484, 494.48, 159.00
19, 21,1,, 16.932, 485.96, 171.00
*NODE
23,29.125,497.96,171.
25,200.72,497.96,171.
27, 260.72, 497.96, 171.
29, 272.72, 509.96, 171.00
31, 272.72, 569.964, 171.00
33, 280.44, 581.96, 180.19
35, 330.1 , 581.96, 239.3
36, 335.21, 581.96, 245.46
38, 342.91, 593.96, 254.65
39, 342.91 , 628. , 254.65
40, 342.91, 660., 254.65
42, 342.91, 706., 254.65
44, 340.22, 714.48, 256.91
46, 296.57, 771.47, 293.54
48, 282.36, 779.95, 289.80
49, 278.50, 779.95, 285.20
*NGEN
23,25
25,27
29,31
33,35
40,42
44,46
*NGEN,LINE=C
27,29,1,, 260.724, 509.96, 171.00
31,33,1,, 280.44, 569.96, 180.19
36,38,1,, 335.21, 593.96, 245.46
42,44,1,, 333.71, 706.00, 262.37
46,48,1,, 288.85, 771.47, 284.35
*NODE
49, 278.50, 779.95, 285.20
50,274.644, 779.95, 280.61
52, 266.93, 791.95, 271.42
53, 266.93, 801., 271.42
54, 266.93, 876.00, 271.42
57, 266.93, 1000.27, 271.42
59, 278.88, 1012.27, 272.46
61, 335.26, 1012.27, 277.39
63, 343.40, 1012.27, 281.64
64, 366.97, 1012.27, 309.73
65, 369.52, 1012.27, 312.76
66, 379.16, 1012.27, 324.25
67, 388.8, 1012.27, 335.74
68, 389.11, 1012.27, 336.11
70, 396.83, 1024.27, 345.3
71, 396.83, 1027.27, 345.3
72, 396.83, 1033.27, 345.3
73, 396.83, 1040.95, 345.3
75, 389.93, 1049.95, 351.08
76, 380.74, 1049.95, 358.8
*NGEN
54,57
59,61
*NGEN,LINE=C
50,52,1,, 274.64,791.95,280.61
57,59,1,, 333.71, 706.00,262.37
61,63,1,, 334.21, 1012.27, 289.34
68,70,1,, 389.11, 1024.27, 336.11
73,75,1,, 389.93, 1040.95, 351.08
*NODE,NSET=SPRS
115,  24.91, 475.93, 144.5
122, 19.81,  497.96,  219.5
123, 29.13,  597.41, 160.55
135, 299.94,  555.,  239.30
235, 330.10,  599.46, 239.30
139, 364.74,  628.00, 220.25
239, 359.58,  628.00, 291.83
149,278.50,  792.45,  285.20
153, 321.48, 801.00,  318.12
253, 314.43, 801.00,  212.09
156, 311.81, 990.96,  215.36
256,290.46, 1008.88, 299.46
*NSET,NSET=NPDR
25,27,33,36,42,1,76,15,22,23,35,39,49,53,56
*ELEMENT,TYPE=SPRINGA,ELSET=FWR11
1001,15,115
*ELEMENT,TYPE=SPRINGA,ELSET=FWR13
1002,22,122
*ELEMENT,TYPE=SPRINGA,ELSET=FWR14
1003,23,123
*ELEMENT,TYPE=SPRINGA,ELSET=FWR17
1004,35,135
*ELEMENT,TYPE=SPRINGA,ELSET=FWR18
1005,35,235
*ELEMENT,TYPE=SPRINGA,ELSET=FWR20
1006,39,139
*ELEMENT,TYPE=SPRINGA,ELSET=FWR21
1007,39,239
*ELEMENT,TYPE=SPRINGA,ELSET=FWR23
1008,49,149
*ELEMENT,TYPE=SPRINGA,ELSET=FWR25
1009,53,153
*ELEMENT,TYPE=SPRINGA,ELSET=FWR24
1010,53,253
*ELEMENT,TYPE=SPRINGA,ELSET=FWR27
1011,56,156
*ELEMENT,TYPE=SPRINGA,ELSET=FWR28
1012,56,256
*ELSET,ELSET=SPRINGS
FWR11, FWR13, FWR14, FWR17, FWR18, FWR20,
FWR21, FWR23, FWR24,  FWR25, FWR27, FWR28
*SPRING,ELSET=FWR11

17700., 
*SPRING,ELSET=FWR13

119600., 
*SPRING,ELSET=FWR14

403000., 
*SPRING,ELSET=FWR17

97900., 
*SPRING,ELSET=FWR18

228000., 
*SPRING,ELSET=FWR20

86300., 
*SPRING,ELSET=FWR21

86300., 
*SPRING,ELSET=FWR23

319000., 
*SPRING,ELSET=FWR24

56800., 
*SPRING,ELSET=FWR25

39100., 
*SPRING,ELSET=FWR27

55500., 
*SPRING,ELSET=FWR28

68000., 
*ELEMENT,TYPE=Z01,FILE=substr1,ELSET=ZALL
101,1,2,4,7,10,11,14,15,19,22,23
*ELEMENT,TYPE=Z02,FILE=substr2,ELSET=ZALL
102,23,25,27,28,31,35,39,45,49
*ELEMENT,TYPE=Z03,FILE=substr1,ELSET=ZALL
103,49,50,53,55,56,60,63,66,70,74,76
*SUBSTRUCTURE PROPERTY, ELSET=ZALL
*BOUNDARY
1,1,6
76,1,6
70,1
10,2
SPRS,1,3
 2,3,3
 4,3,3
 7,3,3
10,3,3
11,3,3
14,3,3
19,1,1
25,1,1
27,1,1
28,1,1
31,1,1
45,2,2
50,2,2
55,2,2
60,2,2
63,2,2
66,2,2
70,2,2
74,2,2
*NSET,NSET=SUP1
1,2,4,7,10,11,14,15,19,22,23
*NSET,NSET=SUP2
23,25,27,28,31,35,39,45,49
*NSET,NSET=SUP3
49,50,53,55,56,60,63,66,70,74,76
*NSET,NSET=SUPALL
SUP1,SUP2,SUP3
*NSET,NSET=SMALL
1,25,27,45,55,74
*STEP
     FREQUENCY EXTRACTION
*FREQUENCY, eigensolver=lanczos, SIM=NO
24, , 
*ELEMENT MATRIX OUTPUT,ELSET=ZALL,STIFFNESS=YES,MASS=YES,FREQUENCY=10
*MODAL FILE
*END STEP
*STEP,PERTURBATION
  SNAP LOAD---APPLIED STATICALLY
*STATIC
*EL PRINT,ELSET=SPRINGS
S,E
*CLOAD
25,3,7000.
*NODE PRINT,NSET=SMALL,FREQUENCY=100
U, 
*SUBSTRUCTURE PATH, ENTER ELEMENT=103
*OUTPUT,FIELD,VAR=PRESELECT
*NODE PRINT
*EL PRINT
SF,
*SUBSTRUCTURE PATH, LEAVE, ENTER ELEMENT=102
*OUTPUT,FIELD,VAR=PRESELECT
*EL PRINT
SF,
*NODE PRINT
U ,
*SUBSTRUCTURE PATH, LEAVE
*ELEMENT MATRIX OUTPUT,ELSET=ZALL,STIFFNESS=YES,MASS=YES,FREQUENCY=0
*END STEP
*STEP
 RELEASE LOAD
*MODAL DYNAMIC,CONTINUE=YES
 0.02,10.0
*MODAL DAMPING,MODAL=DIRECT
 1,24,0.028
*PRINT,FREQUENCY=100
*EL FILE,ELSET=SPRINGS,FREQUENCY=100
S,
*NODE FILE,NSET=SMALL,FREQUENCY=100
U,
V,
A, 
*NODE PRINT,NSET=SMALL,FREQUENCY=100
U, 
*EL PRINT,ELSET=SPRINGS,FREQUENCY=100
S,
*OUTPUT,FIELD, OP=NEW,FREQUENCY=999
*ELEMENT OUTPUT,ELSET=SPRINGS
S,
*NODE OUTPUT,NSET=SMALL
U,
V,
A, 
*OUTPUT,HISTORY, OP=NEW, FREQUENCY=100
*ELEMENT OUTPUT,ELSET=SPRINGS
S,
*NODE OUTPUT,NSET=SMALL
U,
V,
A, 
*END STEP