*HEADING
Analysis of automotive boot seal.
*SYMMETRIC MODEL GENERATION,REVOLVE,ELEMENT=20000,NODE=20000
*NODE
*RIGID BODY,ANALYTICAL SURFACE=SHAFT,REF NODE=9999
*SURFACE,TYPE=REVOLUTION,NAME=SHAFT
 START, 14.,120.
 LINE, 14.,0.
*CONTACT PAIR,INTERACTION=SHAFT_C
BOOT_IN,SHAFT
*SURFACE INTERACTION, NAME=SHAFT_C
*SURFACE BEHAVIOR,AUGMENTED
*BOUNDARY
MGS,1,3
9998,1,6
*orientation,name=ori1
*orientation,name=ori2
*element,type=conn3d2,elset=conn
*CONNECTOR SECTION, ELSET=conn
join,flex
ori1,ori2
** PERFORM INTERFERENCE FIT BETWEEN SHAFT AND BOOT
*STEP,NLGEOM
*STATIC
.25,1.
*CONTACT INTERFERENCE, SHRINK
BOOT_IN,SHAFT
*PRINT,CONTACT=YES
*Output, field, variable=PRESELECT, freq=10
*Output, history, variable=PRESELECT, freq=10
*END STEP
** ROTATE SHAFT 20 DEGREES (.349 RADIANS)
*STEP,NLGEOM,UNSYMM=YES
*STATIC
 .1,1.
*CONNECTOR MOTION
*END STEP
**
** ROTATE INCLINED SHAFT AROUND CIRCUMFERENCE
**
*STEP,NLGEOM,UNSYMM=YES
*STATIC
 .1,1.
*CONNECTOR MOTION
**
** The shaft can't be rotated more than 180 degrees
** due to limitations in flexion-torsion connector elements.
** Only 30 degrees circumferential rotation is specidied below.
*END STEP