*heading
 one element test for 2D uncoupled spring vuel (vuel_springs_2d.f)
*parameter
**
** translation properties
dMass  = 7214.5
dStiff = 1.0521e7
dDamp  = 0.0
**rotational properties
dRotStiff_zz = 2000.0
dRotDamp = 1.0
**
ri_zz = 0.3
**------------------------------------------------
*preprint,echo=yes,model=yes,hist=yes
*NODE,NSET=PR
*nset, nset=qa_test_leftnode
*nset, nset=qa_test_rightnode
**------------------------------------------------
*USER ELEMENT,NODES=2,TYPE=VU1001,PROPERTIES=6,COORDINATES=2,VARIABLES=9
*ELEMENT,TYPE=VU1001,elset=utruss
*UEL PROPERTY,ELSET=UTRUSS
<dStiff>, <dDamp>, <dMass>, <dRotStiff_zz>, <dRotDamp>, <ri_zz>
**------------------------------------------------
*BOUNDARY
101,1,2
101,6,6
**
*amplitude,name=load,definition=smooth step
0,0,1,1
**------------------------------------------------
*step, nlgeom=yes
*dynamic,explicit,elem
,1.0
*variable mass scaling, elset=utruss,
 type=uniform,frequency=2,dt=1.e-2
*bulk viscosity
*CLOAD,amplitude = load
102, 1, 2e6
102, 2, 5e6
*CLOAD,amplitude = load
102, 6, 1000
*output,field,var=preselect,num=1
*output, history, freq=1
*node output,nset=PR
u,v,a,rf
*node output, nset=qa_test_leftnode
 RF,
*node output, nset=qa_test_rightnode
 U, V, A
*energy output
*END STEP
**------------------------------------------------