*NODE,NSET=NALL
*ELEMENT,TYPE=SPRINGA,ELSET=ESPRING
*ELEMENT,TYPE=C3D8,ELSET=EMASSA
***ELEMENT,TYPE=DASHPOTA,ELSET=EDASH
***3,1,2
*BOUNDARY
1,1,3
**2,2,3
*NSET,NSET=NMASSA,GENERATE
**BOUNDARY
**NMASSA,2,3
*SPRING,ELSET=ESPRING
1.
***DASHPOT,ELSET=EDASH
***1.e-5
*MATERIAL,NAME=EL
*ELASTIC
210000.,.3
*DENSITY
1000.
*SOLID SECTION,ELSET=EMASSA,MATERIAL=EL
*EQUATION
*EQUATION
*EQUATION
*STEP,INC=400
*DYNAMIC,direct
1.e-1,10
*CLOAD
4,1,0.125
5,1,0.125
8,1,0.125
9,1,0.125
4,2,0.125
5,2,0.125
8,2,0.125
9,2,0.125
*NODE FILE, OUTPUT=3d
 U
*EL FILE
 S, E
*NSET,NSET=N4
*NODE PRINT,NSET=N4
U
*NSET,NSET=N1
*NODE PRINT,NSET=N1
RF
*END STEP