*HEADING
 SUBSTRUCTURE GENERATION FILE FOR psuptrn4.inp
*NODE,NSET=RDOF
1,
2,1.,
3,1.,1.
4,0.,1.
9,0.,0.
*ELEMENT,TYPE=CPEG4,ELSET=E1
1,1,2,3,4
*SOLID SECTION,ELSET=E1,MAT=MAT1,REFNODE=9
*MATERIAL,NAME=MAT1
*ELASTIC
3.E06, 
*NSET,NSET=NTRANS
2,3
*NSET,NSET=RDOF
1,2,3,4,9
**
**
*STEP
*SUBSTRUCTURE GENERATE,TYPE=Z101,OVERWRITE
*RETAINED NODAL DOF
RDOF, 
*END STEP