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Workshop 10A

Loading and Solution

3-D Bracket

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Workshop Supplement

10A. Loading and Solution

3-D Bracket INTR

INTR

INTR

INTR

INTR

INTR

Description

-

DUCTI

DUCTI

DUCTI

DUCTI

DUCTI

DUCTI

Sparse iterative solver. The model has already been meshed withSOLID95 20-noded bricks, and Youngs Modulus has been set to

30e6 psi.NTO

NTO

NTO

NTO

NTO

NTO

NSYS

NSYS

NSYS---

NSYS

NSYS

NSYS---

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February 7, 2006

Inventory #002269

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Workshop Supplement


3-D Bracket INTR

INTR

INTR

INTR

INTR

INTR

Loads and Boundary Conditions

DUCTI

DUCTI

DUCTI

DUCTI

DUCTI

DUCTI

1000 psi on top areaFix kp 28 in z-direction

NT

O

NT

O

NT

O

NT

O

NT

O

NT

O

NSYS

NSYS

NSYS---

NSYS

NSYS

NSYS---

Symmetry B.C. on

hole surface

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February 7, 2006

Inventory #002269

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Workshop Supplement


3-D Bracket INTR

INTR

INTR

INTR

INTR

INTR

1. Enter ANSYS in the working directory specified by your instructor using bracket-3d

as the jobname.

DUCTI

DUCTI

DUCTI

DUCTI

DUCTI

DUCTI

. esume e rac e - . a a ase e:

Utility Menu > File > Resume from Select the bracket-3d.db1 database file, then [OK]

Or issue:

NT

O

NT

O

NT

O

NT

O

NT

O

NT

O

, - ,

3. Enter the solution processor and restrain translations normal to hole surfaces:

Main Menu > Solution > Define Loads > Apply > Structural > Displacement > Symmetry B.C. > On Areas

Pick the areas on the hole surfaces (area numbers 3, 4, 5, and 6), then [OK]NSYS

NSYS

NSYS---

NSYS

NSYS

NSYS---

Or issue:

/SOLU

DA,3,SYMM

DA,4,SYMM

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DA,5,SYMMDA,6,SYMM

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3-D Bracket INTR

INTR

INTR

INTR

INTR

INTR

4. To prevent rigid body motion along the Z axis, constrain UZ translation on keypoint 28:

Main Menu > Solution > Define Loads > Apply > Structural > Displacement > On Keypoints

DUCTI

DUCTI

DUCTI

DUCTI

DUCTI

DUCTI

[OK]

Set Lab2 = UZ, then [OK]

Or issue:

DK,28,UZNT

O

NT

O

NT

O

NT

O

NT

O

NT

O

5. Apply 1000 psi pressure load to the top surface area of the 3-D bracket:

Main Menu > Solution > Define Loads > Apply > Structural > Pressure > On Areas

Pick the top surface area (area number 11) , then [OK]

NSYS

NSYS

NSYS---

NSYS

NSYS

NSYS---

,

Or issue:

SFA,11,1,PRES,1000

6. Select the Sparse direct solver:

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Main Menu > Solution > Analysis Type > Soln Controls Pick the Soln Options tab

Select the Sparse direct solver, then [OK]

Or issue:


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EQSLV,SPARSE

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3-D Bracket INTR

INTR

INTR

INTR

INTR

INTR

7. Save the database and obtain the solution:

Pick the SAVE_DB button in the Toolbar (or select: Utility Menu > File > Save as Jobname.db)

> > >

DUCTI

DUCTI

DUCTI

DUCTI

DUCTI

DUCTI

[OK]

Or issue:

SAVE

SOLVENT

O

NT

O

NT

O

NT

O

NT

O

NT

O

8. After the solution is completed, enter the general postprocessor and plot the von

Mises stress (SEQV):

Main Menu > General Postproc > Plot Results > Contour Plot > Nodal Solu

NSYS

NSYS

NSYS---

NSYS

NSYS

NSYS---

,

Or issue:

/POST1

PLNSOL,S,EQV

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3-D Bracket INTR

INTR

INTR

INTR

INTR

INTR

DUCTI

DUCTI

DUCTI

DUCTI

DUCTI

DUCTINT

O

NT

O

NT

O

NT

O

NT

O

NT

ONSYS

NSYS

NSYS---

NSYS

NSYS

NSYS---

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or s op


Connecting Rod

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Workshop Supplement

10B. Loading and Solution

Connecting Rod INTR

INTR

INTR

INTR

INTR

INTR

Description

-

DUCTI

DUCTI

DUCTI

DUCTI

DUCTI

DUCTI

and solve using the SPARSE solver. The model has already beenmeshed with SOLID95 20-noded bricks, and Youngs Modulus has

been set to 30e6 psi.NT

O

NT

O

NT

O

NT

O

NT

O

NT

ONSYS

NSYS

NSYS---

NSYS

NSYS

NSYS---

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Connecting Rod INTR

INTR

INTR

INTR

INTR

INTR

Loads and Boundary Conditions

DUCTI

DUCTI

DUCTI

DUCTI

DUCTI

DUCTIConstrain UZ

DOF on NodeNT

O

NT

O

NT

O

NT

O

NT

O

NT

O

1000 psi on Area

NSYS

NSYS

NSYS---

NSYS

NSYS

NSYS---

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. .


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Connecting Rod INTR

INTR

INTR

INTR

INTR

INTR

1. Enter ANSYS in the working directory specified by your instructor using conn-rod

as the jobname.

DUCTI

DUCTI

DUCTI

DUCTI

DUCTI

DUCTI

. esume e conn-ro . a a ase e:

Utility Menu > File > Resume from Select the conn-rod.db1 database file, then [OK]

Or issue:

NT

O

NT

O

NT

O

NT

O

NT

O

NT

O

, - ,

3. Enter the solution processor and restrain translations normal to the larger hole

surfaces:

Main Menu > Solution > Define Loads > Apply > Structural > Displacement > Symmetry B.C. > On AreasNSYS

NSYS

NSYS---

NSYS

NSYS

NSYS---

Pick the areas on the hole surfaces (area numbers 8 and 9), then [OK]

Or issue:

/SOLU

DA,8,SYMM

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DA, ,SYMM


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Connecting Rod INTR

INTR

INTR

INTR

INTR

INTR

4. Apply symmetry boundary constraints on all area surfaces at Y=0:

Main Menu > Solution > Define Loads > Apply > Structural > Displacement > Symmetry B.C. > On Areas

=

DUCTI

DUCTI

DUCTI

DUCTI

DUCTI

DUCTI

, ,

Or issue:

DA,7,SYMM

DA,10,SYMM

DA,13,SYMMNT

O

NT

O

NT

O

NT

O

NT

O

NT

O

5. To prevent rigid body motion along the Z axis, constrain UZ translation on node 702:

Main Menu > Solution > Define Loads > Apply > Structural > Displacement > On Nodes

Enter node number 702 in the ANSYS picking menu followed by [Enter]NSYS

NSYS

NSYS---

NSYS

NSYS

NSYS---

Set Lab2 = UZ, then [OK]

Or issue:

D,702,UZ

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Connecting Rod INTR

INTR

INTR

INTR

INTR

INTR

6. Apply 1000 psi pressure load to area number 11 located on the smaller hole:

Main Menu > Solution > Define Loads > Apply > Structural > Pressure > On Areas

DUCTI

DUCTI

DUCTI

DUCTI

DUCTI

DUCTI

,

Set VALUE = 1000, then [OK]

Or issue:

SFA,11,1,PRES,1000

NT

O

NT

O

NT

O

NT

O

NT

O

NT

O

. e ec e parse rec so ver:

Main Menu > Solution > Analysis Type > Soln Control

Pick the Soln Options tab

Select the Sparse direct solver, then [OK]NSYS

NSYS

NSYS---

NSYS

NSYS

NSYS---

EQSLV,SPARSE

8. Save the database and obtain the solution:


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Main Menu > Solution > Solve > Current LS [OK]

Or issue:

SAVE


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SOLVE

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Connecting Rod INTR

INTR

INTR

INTR

INTR

INTR



Main Menu > General Post roc > Plot Results > Contour Plot > Nodal Solu

DUCTI

DUCTI

DUCTI

DUCTI

DUCTI

DUCTI

Select Nodal Solution > Stress > von Mises stress, then [OK]

Or issue:

/POST1

PLNSOL,S,EQV

NT

O

NT

O

NT

O

NT

O

NT

O

NT

ONSYS

NSYS

NSYS---

NSYS

NSYS

NSYS---

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. ave e a a ase:

Pick the SAVE_DB button in the Toolbar

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Wheel

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10C. Loading and Solution

Wheel INTR

INTR

INTR

INTR

INTR

INTR

Description

DUCTI

DUCTI

DUCTI

DUCTI

DUCTI

DUCTI

the next slide and solve using the

SPARSE solver.

NT

O

NT

O

NT

O

NT

O

NT

O

NT

O

SOLID45 bricks, SOLID95 pyramids, and

SOLID92 tets.

NSYS

NSYS

NSYS---

NSYS

NSYS

NSYS---

psi and density has been set to 0.00073

lbf-s2/in4.

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Wheel INTR

INTR

INTR

INTR

INTR

INTR

Loads

DUCTI

DUCTI

DUCTI

DUCTI

DUCTI

DUCTINT

O

NT

O

NT

O

NT

O

NT

O

NT

OSymmetryB.C. on

Areas NSYS

NSYS

NSYS---

NSYS

NSYS

NSYS---

Angular Velocity

of 525 rad/sec

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art1Constrain UY DOF

on Node 33Symmetry B.C.

on Areas


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Wheel INTR

INTR

INTR

INTR

INTR

INTR

5. Select everything and plot areas:

Utility Menu > Select > Everything

> > DUCTI

DUCTI

DUCTI

DUCTI

DUCTI

DUCTI

Or issue:

ALLSEL,ALL,ALL

APLOT

NT

O

NT

O

NT

O

NT

O

NT

O

NT

O

. o preven r g o y mo on, cons ra n rans a on on no e :

Main Menu > Solution > Define Loads > Apply > Structural > Displacement > On Nodes

Enter node number 33 in the ANSYS picking menu followed by [Enter]

[OK] N

SYS

NSYS

NSYS---

NSYS

NSYS

NSYS---

,

Or issue:

D,33,UY

7. Apply rotational velocity of 525 rad/sec about global Y axis:

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Main Menu > Solution > Define Loads > Apply > Structural > Inertia > Angular Velocity > Global Set OMEGY = 525

[OK]

Or issue:


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OMEGA,0,525

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Wheel INTR

INTR

INTR

INTR

INTR

INTR

8. Select the Sparse direct solver:

Main Menu > Solution > Analysis Type > Soln Control

DUCTI

DUCTI

DUCTI

DUCTI

DUCTI

DUCTI

Select the Sparse direct solver, then [OK]

Or issue:

EQSLV,SPARSE

NT

O

NT

O

NT

O

NT

O

NT

O

NT

O

. ave e a a ase an o a n e so u on:


Main Menu > Solution > Solve > Current LS

[OK]NSYS

NSYS

NSYS---

NSYS

NSYS

NSYS---

SAVE

SOLVE

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Wheel INTR

INTR

INTR

INTR

INTR

INTR



Main Menu > General Post roc > Plot Results > Contour Plot > Nodal SoluDUCTI

DUCTI

DUCTI

DUCTI

DUCTI

DUCTI

Select Nodal Solution > Stress > von Mises stress, then [OK]

Or issue:

/POST1

PLNSOL,S,EQV

NT

O

NT

O

NT

O

NT

O

NT

O

NT

ONSYS

NSYS

NSYS---

NSYS

NSYS

NSYS---

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WheelINTR

INTR

INTR

INTR

INTR

INTR

11. Expand the results about the Z-axis of local coordinate system 11 (cylindrical):

Utility Menu > WorkPlane > Change Active CS to > Specified Coord Sys

= DUCTI

DUCTI

DUCTI

DUCTI

DUCTI

DUCTI

[OK]

Utility Menu > PlotCtrls > Style > Symmetry Expansion > User-Specified Expansion ...

NREPEAT = 16

TYPE = Local PolarNT

O

NT

O

NT

O

NT

O

NT

O

NT

O

PATTERN = Alternate Symm

DY = 22.5

[OK]

Or issue: NSYS

NSYS

NSYS---

NSYS

NSYS

NSYS---

CSYS,11

/EXPAND,16,LPOLAR,HALF,,22.5

/REPLOT

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WheelINTR

INTR

INTR

INTR

INTR

INTR

12. Turn expansion off:

Utility Menu > PlotCtrls > Style > Symmetry Expansion > No Expansion

> > DUCTI

DUCTI

DUCTI

DUCTI

DUCTI

DUCTI

Or issue:

/EXPAND

/REPLOT

NT

O

NT

O

NT

O

NT

O

NT

O

NT

ONSYS

NSYS

NSYS---

NSYS

NSYS

NSYS---

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13. Save and exit ANSYS:


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Pick the SAVE_DB button in the Toolbar

Pick the QUIT button in the Toolbar

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