*NODE,nset=retained
     53,     27.04292,         -30.
     54,     32.90476,         -30.
*element,type=z1,file=substr_small_ac2d4,elset=z1
10001,53,54
*substructure property,elset=z1
*boundary
53,1,2
54,1,2
****************************
*step
*steady state dynamics,DIRECT,real only,interval=range
1,25,25
*sload
10001,load58,1.0
*output,history
*node output,nset=retained
rf,
*substructure path,enter=10001
*output,history
*node output,nset=n154
u,
*node output,nset=n44
por,
*OUTPUT,FIELD
U,POR
*substructure path,leave
*end step
**************
*step
*frequency,norm=mass
15,,,-1
*end step
******************
*step
*steady state dynamics,SUBSPACE,real only,interval=range
1,25,25
*sload
10001,load58,1.0
*output,history
*node output,nset=retained
rf,
*substructure path,enter=10001
*output,history
*node output,nset=n154
u,
*node output,nset=n44
por,
*node print,nset=n44
por,
*substructure path,leave
*end step
**************
*step
*dynamic
1.e-4,0.002
*sload
10001,load154,1,1.0
*output,history
*node output,nset=retained
rf,
*substructure path,enter=10001
*output,history
*node output,nset=n154
u,
*node output,nset=n44
por,
*substructure path,leave
*end step
************