*HEADING
 BASIC VERIFACTION OF *COUPLING AND *DISTRIBUTING
 COLINEAR COUPLING NODES
*PREPRINT, MODEL=YES
*RESTART,W
*NODE
10,0.0,  0.0
1 ,2.0,  0.5
2 ,1.0, -0.5
3 ,3.0,  1.5
*SURFACE, NAME="NODE BASED SURFACE", TYPE=NODE
2,2.0
3,3.0
1,1.0
*COUPLING, CONSTRAINT NAME="COUPLING DEFINITION 1", REF NODE=10, SURFACE="NODE BASED SURFACE"
*DISTRIBUTING
*ELEMENT,TYPE=SPRING1,ELSET=ESPRING1
110,1
120,2
130,3
*ELEMENT,TYPE=SPRING1,ELSET=ESPRING2
210,1
220,2
230,3
*ELEMENT,TYPE=SPRING1,ELSET=ESPRING3
310,1
320,2
330,3
*SPRING,ELSET=ESPRING1
1, 
01.0E2, 
*SPRING,ELSET=ESPRING2
2, 
02.0E2, 
*SPRING,ELSET=ESPRING3
3, 
03.0E2, 
*ELEMENT, TYPE=MASS, ELSET=MASS_1
 1001, 1
*ELEMENT, TYPE=MASS, ELSET=MASS_2
 1002, 2
*ELEMENT, TYPE=MASS, ELSET=MASS_3
 1003, 3
*MASS, ELSET=MASS_1
 1.66666667,
*MASS, ELSET=MASS_2
 3.33333333,
*MASS, ELSET=MASS_3
 5.0,
**
**  STEP 1: STATIC APPLIED MOMENT - Z
**
*STEP
*STATIC
*CLOAD,OP=NEW
10,6,2.0
*OUTPUT,FIELD
*OUTPUT,FIELD
*NODE OUTPUT
U,RF
*NODE FILE
U,
RF,
*NODE PRINT
U,
RF,
*END STEP
**
**  STEP 2: STATIC APPLIED MOMENT - X
**
*STEP
*STATIC
*CLOAD,OP=NEW
10,4,2.0
*END STEP
**
**  STEP 3: STATIC APPLIED MOMENT - Y
**
*STEP
*STATIC
*CLOAD,OP=NEW
10,5,2.0
*END STEP
**
**  STEP 4: STATIC APPLIED MOMENT
**  ALONG THE COLINEAR AXIS
**
*STEP
*STATIC
*CLOAD,OP=NEW
10,4,2.0
10,5,2.0
*END STEP
**
**  STEP 5: FREQUENCY EXTRACTION
**
*STEP
*FREQUENCY, eigensolver=lanczos, SIM=NO
3, , 
*OUTPUT,FIELD
*NODE OUTPUT
U,
*NODE PRINT
U,
*NODE FILE
U,
*END STEP