20

20.1

20.1

EX=2.1E5 NUXY=0.3 MU=0.2

20.1

20.2

ANSYS6.1 1/4

20.2.1

20.1StructuralAnalysis of a Axis Contacting a hole in a Disc

1 Utility Menu | File | Change Jobname Change Jobname () 20.2 Enter new jobname ()CH20 New log and error files ()Yes

20.2

2 Utility Menu | File | Change Title Change Title () 20.3 Enter new title ()Analysis of a Axis Contacting a hole in a Disc

20.3

3 Utility Menu | Plot | ReplotAnalysis of a Axis Contacting a hole in a Disc()

4Main Menu | Preference Preference of GUI Filtering () Structual()

20.2.2

Solid185 TARGE170 CONTA174

1Main Menu | Preprocessor | Element Type | Add/Edit/DeleteElement Types () Library of Element Types (), 20.4

20.4

2Structural SolidBrick 8node 185 Solid185

Library of Element Types Element Types () 1Solid185 20.5

20.5

3 Element Types ()

20.2.3

1Main Menu | Preprocessor | Material Props | Material ModelsDefine Material Model Behavior () 20.6

20.6

2 Structural | | Linear | | Elastic | | Isotropic 1 EX PRXY 20.7

20.7 3 EX ()2.1E5PRXY

() 0.3 4 Define Material Model Behavior () 1Material | Exit

20.2.4

1Main Menu | Preprocessor | Modeling | Create | Volumes | Cylinder | Partial Cylinder Partial Cyclinde (r) 20.8

20.8

2WP X0WP Y0 Rad-134 Theta-10 Rad-2100 Theta-290Depth25 20.8 ANSYS()

3WP X0WP Y0 Rad-125 Theta-1

0 Rad-235 Theta-290 Depth150 ANSYS

4 Utility Menu | PlotCtrls | Pan Zoom Rotate Pan-Zoom -Rotate ()

20.9

20.9 5 2()Main Menu | Preprocessor | Modeling

| Move / Modify | VolumesMove Volume () Move Volume () 20.10

20.10 6 Z-offset in Active CS (Z)-10 Z 10mm

7Main Menu | Preprocessor | Meshing | Mesh Tool 20.11

20.11 8(Mesh Tool)(Size

Controls) Lines () Element Sizes on Picked Lines () Element Sizes on Picked Lines () 20.12

20.12 9 No. of element divisions ()15 15

10 89 2 20

11 Mesh Volume Shape ()Hex/Wedge

Sweep Volume Sweeping () ( Sweep

2) 12 811 10 8 3

20.13

20.13

20.2.5

ANSYS6.1 ANSYS

1Main Menu | Preprocessor | Modeling | Create | Contact Pair ANSYS6.1 Contact Manager () 20.14

20.14

2 Add Contact Pair () 20.15

20.15

3Areas

Select Area for Target ()

Add Contact Pair ()

4Areas

Select Area for Contact ()

Add Contact Pair ()

20.16

20.16

5Include initial penetrationMaterial ID ()1

Coefficient of Friction ()0.2 0.2

20.17

20.17 6 Normal Penalty Stiffness ()0.1 0.1 Friction () 20.18

20.18 7 Stiffness matrix ()Unsymmetric

8 20.16 ANSYS

20.19

20.19

9 20.19 ANSYS 3 20.20

20.20 10 ANSYS Toolbar () 11 Utility Menu | Plot | Areas ANSYS

20.3

20.3.1

1 Main Menu | Solution | Define Loads | Apply | Structural | Displacement | Symmetry B. C. | On Areas Apply SYMM on Areas (

)20.21

20.21 2Main Menu | Solution | Define Loads | Apply |

Structural | Displacement | On Areas Apply U,ROT on Areas ()

Apply U,ROT on Areas () 20.22

20.22 3 DOFs to be constrainted ()All DOF( 0)

20.23

20.23

20.3.2

1Main Menu | Analysis Type | Solution | New Analysis New Analysis ()()Static

2Main Menu | Solution | Analysis Type | Sol'n Controls 20.24

20.24 3 Basic () Analysis Options ()Large

Displacement Static Time Control () Time at end of loadstep100(Automatic time steppingOff)

(Solution Controls)

Advanced NL ()

Main Menu | Solution | Load Step Opts | Time/Frequenc | Time-Time Step

ANSYS (Ramped)

4Main Menu | Solution | Solve | Current LS STATUS Command () ( 20.25) Solve Current Load Step ()( 20.26)

20.25

5

20.26

6ANSYS

7 ANSYS Utility Menu | Replot

20.3.3

()

1Main Menu | Solution | Analysis Type | Sol'n Controls Solution Controls () 20.27

20.27 2 Basic () Analysis Options ()Large Displacement Static Time Control () Time at end of loadstep ()250 Automatic time stepping() On) Number of substeps ()150Max no. of substeps ()10000Min no. of substeps ()10

3Write Items to Results File () Frequency ()Write every substep

4( 40mm) Utility Menu | Select | Entities Select Entities () 20.28NodeBy Location

Z coordinates140 Z 140

20.28 5Main Menu | Solution | Define Loads | Apply | Structural | Displacement |

On Nodes Apply U,ROT on NOdes () 20.29

UZ Displacement value ()40

20.29 6 Utility Menu | Select | Everythings 7Main Menu | Solution | Solve | Current LSSTATUS Command () Solve Current Load Step ()()

8

9ANSYS

ANSYS

20.4

(POST1)(POST26)

20.4.1

ANSYS

1 Utility Menu | PlotCtrls | Style | Symmetry Expansion | Periodic/Cyclic Symmetry Periodic/Cyclic Symmetry Expansion () 20.31

20.30 21/4 Dihedral Sym20.31

20.31 3Main Menu | General

Pestpro | Read Results | By Load Step Read Results by Load Step Number ()( LSTEP=1,SBSTEP=LAST)

4Main Menu | General Postproc | Plot Results | Contour Plot | Nodal Solu Contour Nodal Solution Data () 20.32

20.32

5Stress

Von Mises SEQV ANSYS 20.33

20.33 6Main

Menu | General Pestpro | Read Results | By Time/Freq Read Results by Time or Frequency () 20.34 Value of time or freq ()120 120

20.34 7 Utility Menu | Select | Entities(Select

Entities)ElementBy Elem NameElement Name174

8 Utility Menu | Plot | Elements 20.35

20.35 9Main Menu | General Postproc | Plot Results | Contour Plot | Nodal Solu Contour Nodal Solution Data () 20.32ContactPressure PRES

ANSYS 120 20.36

20.36 10 Utility Menu | Select | Everything

ANSYS(POST1) Utility Menu | Plot Ctrls | Animate | Over Results Utility Menu | List | Nodes

18.4.2

ANSYS

1Main Menu | TimeHist Postpro Time History Variables () 20.37

20.37 2 Z Add Time History Variable (

) 20.38

20.38 3 Result Item ()

Reaction Forces | Structural Forces | Z-Component of ForceVariable Name ()FZ_2 140

2FZ_2 20.37

4 Z

ANSYS Z 20.39

20.39

ANSYS ANSYS

20.5

ANSYS GUI /TITLE,Analysis of a Axis Contacting a hole in a Disc /PREP7 !* ET,1,SOLID185 !* MP,EX,1,2.1E5 MP,PRXY,1,0.3 !* CYL4,0,0,34,0,100,90,25 CYL4,0,0,25,0,35,90,150 VGEN, ,2, , , , ,-10, , ,1 !*

LESIZE,17, , ,15, , , , ,1 LESIZE,19, , ,15, , , , ,1 !* LESIZE,18, , ,2, , , , ,1 LESIZE,20, , ,2, , , , ,1 !* LESIZE,22, , ,20, , , , ,1 !* LESIZE,5, , ,10, , , , ,1 LESIZE,7, , ,10, , , , ,1 !* LESIZE,6, , ,8, , , , ,1 LESIZE,8, , ,8, , , , ,1 !* LESIZE,10, , ,3, , , , ,1 !* VSWEEP,ALL !* /COM, CONTACT PAIR CREATION - START MP,MU,1,0.2 MAT,1 R,3 REAL,3 ET,2,170 ET,3,174 R,3,,,0.1,0.1,, NROPT,UNSYM !* Generate the target surface ASEL,S,,,4 CM,_TARGET,AREA TYPE,2 NSLA,S,1 ESLN,S,0 ESURF,ALL !* Generate the contact surface ASEL,S,,,9 CM,_CONTACT,AREA TYPE,3 NSLA,S,1

ESLN,S,0 ESURF,ALL CMDEL,_TARGET CMDEL,_CONTACT ALLSEL,ALL EPLOT FINISH !* /SOLU DA,5,SYMM DA,6,SYMM DA,11,SYMM DA,12,SYMM DA,3,ALL, !* ANTYPE,0 NLGEOM,1 AUTOTS,0 TIME,100 SOLVE !* NSUBST,150,10000,10 OUTRES,ALL,ALL AUTOTS,1 TIME,250 NSEL,S,LOC,Z,140 140 D,ALL,UZ,40 ALLSEL,ALL SOLVE !* /EXPAND,4,POLAR,HALF,,90 /REPLOT !* /POST1 SET,1,LAST,1, PLNSOL,S,EQV,0,1 !* SET, , ,1, ,120, , ESEL,S,ENAME,,174

EPLOT PLNSOL,CONT,PRES,0,1 !* PLNS,S,EQV ANDATA,0.5, ,1,0,0,1,1,1 !* /POST26 !* RFORCE,2,925,F,Z, FZ_2 PLVAR,2, FINISH