*PARAMETER
base    = 2.0
shorter = 0.1
slave   = base - shorter
hafsl   = slave*0.5
************************************************
***             MASTER BLOCK       ***
*NODE
1001,      0,    0, -1
1002,<base>,     0, -1
1003,<base>,<base>, -1
1004,     0,<base>, -1
1011,0,          0,  0
1012,<base>,     0,  0
1013,<base>,<base>,  0
1014,     0,<base>,  0
*ELEMENT,TYPE=C3D8,ELSET=base
101,1001,1002,1003,1004,1011,1012,1013,1014
************************************************
****      SLAVE BLOCKS  *****
*NODE
2001,      0,      0, 0
2002,<hafsl>,      0, 0
2003,<slave>,      0, 0
2004,      0,<hafsl>, 0
2005,<hafsl>,<hafsl>, 0
2006,<slave>,<hafsl>, 0
**
2011,      0,      0, 0.5
2012,<hafsl>,      0, 0.5
2013,<slave>,      0, 0.5
2014,      0,<hafsl>, 0.5
2015,<hafsl>,<hafsl>, 0.5
2016,<slave>,<hafsl>, 0.5
**
*ELEMENT,TYPE=C3D8,ELSET=SLAVE2
201,2001,2002,2005,2004,2011,2012,2015,2014
202,2002,2003,2006,2005,2012,2013,2016,2015
**
*NODE
3004,      0,<hafsl>, 0
3006,<slave>,<hafsl>, 0
3007,      0,<slave>, 0
3008,<slave>,<slave>, 0
**
3014,      0,<hafsl>, 0.5
3016,<slave>,<hafsl>, 0.5
3017,      0,<slave>, 0.5
3018,<slave>,<slave>, 0.5
*ELEMENT,TYPE=C3D8,ELSET=SLAVE1
301,3004,3006,3008,3007,3014,3016,3018,3017
************************************************
*ELSET,ELSET=SLAVE
SLAVE1,SLAVE2
*ELSET,ELSET=ALL
101,201,202,301
*SOLID SECTION,elset=all,material=elas
*MATERIAL,name=elas
*elastic
1.e9,0.3
************************************************
*ELEMENT,ELSET=conn,type=conn3d2
501,1002,3017
*CONNECTOR SECTION,ELSET=conn
AXIAL,
*CONNECTOR MOTION
501,1
************************************************
*NODE
9001,0,0,0
*RIGID BODY,ELSET=all, ref node = 9001
************************************************
*BOUNDARY
9001,1,6
************************************************
*STEP,NLGEOM
*STATIC
0.1,1
*CLOAD
3018,1,100
*NODE PRINT,F=100
U,
RF1,RM2,RM3
*OUTPUT,FIELD,FREQ=100
*NODE OUTPUT
RF,
*END STEP
************************************************