*HEADING
 STEADY-STATE ROLLING ANALYSIS OF A TIRE:
 ROLLINGTIRE_FREEROLL
 REQUIRES RESTART FILE: ROLLINGTIRE_BRAKE_TRAC
 3D FULL TIRE MODEL 
 STEP 3: FREE ROLLING ANALYSIS
 UNITS: KG, M
*RESTART,READ,STEP=2,WRITE
*FILE FORMAT,ZERO INCREMENT
*STEP,INC=300,NLGEOM=YES,UNSYMM=YES,EXTRAPOLATION=NO
 2:  STRAIGHT LINE ROLLING  (Free Rolling)
*STEADY STATE TRANSPORT,INERTIA=YES
 0.01, 1.0, 1.e-6, 0.01
*TRANSPORT VELOCITY,USER
 NTIRE,
*NODE PRINT,FREQ=0
*EL PRINT,FREQ=0
*NODE FILE,NSET=RIM
 RF,
*OUTPUT,FIELD,FREQ=1
*ELEMENT OUTPUT
 S,LE
*NODE OUTPUT
 U,V,A
*CONTACT OUTPUT,VAR=PRE
*OUTPUT,HISTORY,FREQ=1
*NODE OUTPUT, NSET=ROAD
 U, RF, UR1,UR2,UR3,RM1,RM2,RM3
*NODE OUTPUT, NSET=RIM
 U, RF, UR1,UR2,UR3,RM1,RM2,RM3
*ENERGY OUTPUT,VAR=PRE
*END STEP