*HEADING
Link modeled with C3D10 solid elements
**  ----------------------------------------------
**
**               NODE DEFINITION
**
*NODE,input=adams_ex1_nodes.inp
**
**
*NSET, NSET=LEFTCYL
8,9,17,18,70,71,72,73,125,126,127,128,134,135,207,
229,230,278,309,310,311,312,313,314,373,374,375,376,
377,378,389,390,391,392,498,533,534,535,546,565,566,
677,688,734,1058,1059,1073,1085,1114,1115,1311,1312,
1325,1335,1356,1357
**
*NSET, NSET=RIGHTCYL
6,7,15,16,66,67,68,69,121,122,123,124,136,137,231,
232,303,304,305,306,307,308,367,368,369,370,371,372,
393,394,395,396,479,480,481,487,488,506,635,654,957,
958,976,977,1004,1026,1219,1220,1234,1235,1257,1287
**
*MPC
BEAM,LEFTCYL,10000
BEAM,RIGHTCYL,20000
**  ----------------------------------------------
**
**               ELEMENT DEFINITION
**
*ELEMENT,TYPE=C3D10,ELSET=PROP1,INPUT=adams_ex1_elements.inp
**
**
**  ----------------------------------------------
**
**               ELEMENT PROPERTY DEFINITION
**
*SOLID SECTION,ELSET=PROP1,MATERIAL=STEEL
**
**  ----------------------------------------------
**
**               MATERIAL DEFINITION
**
*MATERIAL,NAME=STEEL
*ELASTIC
 2.069999944E+11, 3.000000119E-01,
*DENSITY
 7.800000000E+03,
**
*NSET,NSET=RETNODES
10000,20000
**
**  ----------------------------------------------
**
*STEP
*FREQUENCY,EIGENSOLVER=LANCZOS
20,
*BOUNDARY
RETNODES, 1,6
*END STEP
**
**  ----------------------------------------------
**
**               SUBSTRUCTURE GENERATION
**
*STEP
*SUBSTRUCTURE GENERATE, TYPE=Z1, RECOVERY MATRIX=YES, 
 MASS MATRIX=YES, OVERWRITE
*FLEXIBLE BODY, TYPE=ADAMS
*RETAINED NODAL DOFS
RETNODES, 1,6 
*SELECT EIGENMODES,generate
1,20
*END STEP