WORKSHOP 16 GROUP TRANSFORM, RESTRICTOR PLATE · Title: Microsoft PowerPoint -...

WS16-1PAT302, Workshop 16, December 2004Copyright2004 MSC.Software Corporation

WORKSHOP 16

GROUP TRANSFORM, RESTRICTOR PLATE


Problem Description A new restrictor plate is needed for a race car engine to meet a new

NASCAR regulation. The project manager wants to have stressanalysis on the full model rather than an axisymmetric model.Therefore, it is necessary to find the quickest method to build themodel in MSC.Patran. Listed below are the various properties thatwill be needed for the exercise:


Suggested Exercise Steps1. Create a new database called restrictor_plate.db and set the new

model preferences.2. Import the AP203 STEP file.3. Mesh the geometry.4. Create material and element properties.5. Apply the boundary conditions.6. Mirror the entities.7. Rotate the wedge around to complete the restrictor plate.8. Equivalence the Mesh.9. Quit MSC.Patran.


Step 2. Import the STEP File

Import the geometry via AP203Step file.

a. File: Import.b. Set Object and Source to

Model and STEP,respectively.

c. Find and selectwedge.step for FileName.

d. Click on STEP Options.e. Click on Model Units.f. Set Model Unit Override to

None.g. Click OK.h. Click on OKi. Click on Apply.j. Click OK on the Import

Summary dialogue.

ab

c

d

e

f

g

h


Step 3. Mesh the Surface Geometry

Paver mesh the imported wedgesurface.

a. Finite Elements: Create /Mesh / Surface.

b. Set Elem Shape, Mesherand Topology to Quad,Paver and Quad4respectively.

c. Select Surface 1 for SurfaceList.

d. Deselect the AutomaticCalculation toggle.

e. Enter 0.025 for Global EdgeLength Value.

f. Click Apply.

a

b

c

e


Step 5. Apply the Boundary Conditions (Cont.)

Illustrated here is the model with the boundary conditions.


Step 7. Rotate the model

Rotate the wedge, with the hole, tocomplete the restrictor plate.

a. Group / Transform / Rotate.b. Select the Copy togglec. Enter 7 for Time(s).d. Make sure that Transform

Loads/BCs and TransformProperties are checked.

e. Select Coord 0 for ReferenceCoord. Frame.

f. From the Select Menu selectAxis 3, and click on thedefault coordinate system(Coord 0), for Axis.

g. Enter 45 for Rotation Angle.h. Apply.i. Go to the Front view.

a

b

d

e

f

g

WORKSHOP 16 GROUP TRANSFORM, RESTRICTOR PLATE · Title: Microsoft PowerPoint -...

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