DM 11 CH03 Sketch

Ch t 3Ch t 3Chapter 3

Sketch Mode

Chapter 3

Sketch ModeSketch ModeSketch Mode

May 11, 2007© 2007 ANSYS, Inc. All rights reserved.

ANSYS, Inc. Proprietary Inventory #0024963-1

Training Manual

ContentsTraining Manual

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• DesignModeler Geometry• Length Units

D i M d l G t i E titi

• Sketch Dimensions• Sketch Display gnM

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• DesignModeler Geometric Entities• Sketch Mode• New Plane Button

N Sk h B

• Dimension Editing• Workshop 3.1• Modifying Sketches er• New Sketch Button

• “From Face” Plane/Sketch• The Sketch Mode GUI

y g• Sketch Instance• Sketch Projection• Geometry Interfaces• Planes and Sketches

• Plane Transforms• Sketching Tools

• Geometry Interfaces• Attaching to a CAD Session• Importing CAD Files

P iti i I t• Sketching - Basic Shapes• Sketch Details• Sketch Constraints

• Positioning Imports• Import Units• Exporting a Model


Inventory #0024963-2

ANSYS, Inc. Proprietary

• Workshop 3.2

Training Manual

DesignModeler GeometryTraining Manual

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• To study DesignModeler geometry we’ll focus on four fundamental areas: gnM

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– Sketch mode:• Contains tools to create 2D geometric shapes as a prerequisite to 3D geometry

creation or concept modeling ercreation or concept modeling.

– 3D Geometry:• Geometry derived from sketch entities such as extrusions, revolves, surface

models etcmodels, etc.

– Geometry import:• Geometry originating from a commercial CAD system. Typically imported into DM

t ll difi ti f hi d l ito allow modification for meshing and analysis.

– Concept Modeling:• These tools are used to create and modify line and surface bodies which can be

used as the basis for FE beam and shell models




used as the basis for FE beam and shell models.

Training Manual

Length UnitsTraining Manual

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• When a new DM session is started a dialog box allows selection of the desired length unit (can be set as default) gnM

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– Units cannot be changed mid-session.

er




Training Manual

DesignModeler Geometric EntitiesTraining Manual

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• Points

2D Sketch Points

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– 2D Sketch Points

– 3D Vertices– PF Points (Point Features):

• spot-welds erspot welds• point loads• construction points

• Edges (Lines, Curves)g ( )

– 3D, and 2D Sketch

• Faces (Areas, Surfaces)

• Bodies (Volumes)

• Multiple bodies

( t h )




(not shown)

Training Manual

Sketch ModeTraining Manual

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• DM sketches are created on planes. In a new DM session there are three default orthogonal planes in place at the global origin (XY, ZX, YZ). gnM

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• Users may create and position new planes as needed by defining origin and orientation or by using existing geometry as a reference.

• The process to begin sketching is twofold: er• The process to begin sketching is twofold:1. Identify the plane upon which you wish to sketch.

2. Create or identify the sketch which lies on the desired plane.

U t l d d• Users may create as many planes as needed.

• Each plane may have multiple sketches associated with them.

• In the next few pages we’ll look at plane and sketch entity creation and tools to assist in sketching.




Training Manual

New Plane ButtonTraining Manual

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• >New Plane creates a new plane: – New plane object is placed in the Tree gnM

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– Six types of plane construction (Detail Pane):• From Plane – new plane is based on another existing plane

• From Face – new plane is based on a face er• From Point and Edge – new plane is defined by a point and a straight line edge

• From Point and Normal – new plane is defined by a point while its normal is defined by an edge direction

• From Three Points – new plane is defined by three pointsFrom Three Points new plane is defined by three points

• From Coordinates – new plane is defined by typing in the coordinates of the origin and normal

– Sketches are then added to plane• A sketch is utilized to create 3D geometry




Training Manual

New Sketch ButtonTraining Manual

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• New Sketch : creates new sketch on the active plane.

• New sketches are placed in Tree beneath their associated Plane. gnModele

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• Navigate sketches (make active) via the Tree or drop down list.

• Note: drop down list references sketches on currently active plane (see example below) erexample below).

Only XYPlane sketchesXYPlane is active

Only XYPlane sketches displayed in drop down




Training Manual

“From Face” Plane/Sketch ShortcutTraining Manual

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• Shortcut to create a new “From Face” plane and sketch using existing geometry:

Hi hli ht d i d f t l l

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– Highlight desired surface to place new plane.

– Switch to the Sketch tab and begin sketching.

– New plane and sketch are automatically created! er




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Plane TransformsTraining Manual

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• Up to 9 plane transformations are available. They can be applied quickly by choosing the desired transform through the RMB in the “Transform” field in the gnM

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plane detail window.

er




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Plane Transforms…Training Manual

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• Once a transform is selected, additional properties may appear that will allow you to enter offset distances, rotation angles, rotation axes, etc. gnM

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This transform requires both an offset and a rotation angle. er

PLANE4

To add an additional transform, set Additional Transform? to Yes




Additional Transform? to Yes.

Training Manual

Planes and Sketch DetailsTraining Manual

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details the

The plane origin can be turned on/off.

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details, the “Generate” button creates the new plane. erNote: this step is not necessary for sketch creation.

Can “Generate”Can Generate with RMB

The triad and display ruler can be turned on/off.

The “Details” for each plane and sketch controls basic

Triad

Ruler




behavior.

Training Manual

The Sketch Mode GUITraining Manual

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• In sketch mode the GUI presents sketching “toolboxes” to the left through a series of panels. gnM

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Plane and sketch creation and management

D

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At the beginning of

DrawPanel

beginning of a new session the XY plane is displayed atdisplayed at the origin.




Training Manual

Sketching Tools - GridTraining Manual

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• The “Settings” panel allows a sketch grid to be defined and displayed (default = off). gnM

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– Snap feature applies to major and minor spacing.

er




Major spacing (solid)

Minor spacing (dashed)

Training Manual

Sketching Tools – Grid…Training Manual

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• Grid Snaps per Minor allows snapping to points in between minor grid lines.

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This rectangle is snapped halfway between two minor grid lines if Snaps per Minor is set to 2 er




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Sketching Tools – RulerTraining Manual

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• The Ruler tool allows you to get a quick sense of scale.

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Training Manual

Sketching Tools – Auto Constraints

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• By default DM is in “auto-constraint” mode.

• Auto constraints allow new sketch entities to automatically gnModele

ysnap to a location or orientation.

• The cursor indicates the kind of constraint that will be applied erapplied.

• Examples:

(see documentation for complete list)

V ti l d H i t lPoint constraint at b i i f li k t h

Coincident constraint at Vertical and Horizontal constraints while sketching a line.

beginning of line sketch. beginning of line sketch.




Training Manual

Sketching Tools – TipsTraining Manual

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• When creating or changing planes and sketches the “Look At” tool will gnM

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immediately orient the display so that the plane, sketch or selected entity is normal to your view. er

• Many operations either require or are more efficient via a right mouseare more efficient via a right mouse click context menu from the graphics screen.

Right mouse click

“RMB”




RMB

Training Manual

Sketching Tools – Tips …Training Manual

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• The Undo/Redo buttons are available in sketch mode only.

R th l t l t d k t hi ti

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– Removes the last completed sketching operation.– Multiple undo’s allowed.– IMPORTANT: Each plane stores its own Undo “stack”.

er

• The “Back” operation (available via RMB) acts like a micro undo during sketching operations.

• Remember: only one sketch is active at any time!




Training Manual

Sketching Tools – Tips …Training Manual

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• The GUI status bar contains instructions on completing each operation. gnM

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• Example: using the circle operation . . .

1 Choose “Circle”

er1. Choose “Circle”

2. Follow instructions in status bar: choose location for center point

3. Follow instructions in status bar: drag and release for radius




Training Manual

Sketching – Basic ShapesTraining Manual

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• Once a plane and sketch have been specified you can begin creating new geometry from the gnM

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“Draw” toolbox.

• Remember! Some operations will require a right click to complete! erg p

– Example: to end a “spline” operation use the RMB to choose the desired option.




Training Manual

Sketch DetailsTraining Manual

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• Reference numbers for the entities in each sketch (lines, circles, polygons, etc.) can be viewed. gnM

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• Useful for parametric modeling discussed later.

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Can rename sketches from Detail pane.




Training Manual

Sketch Details …Training Manual

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• Highlighting lines in the graphics screen (sketch mode only), will display details for the line. gnM

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Can rename sketch entities from Detail pane erpane.

Details forDetails for highlighted line




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Sketch ConstraintsTraining Manual

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• Sketch details can also display sketch constraint details. gnM

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• Constraints may result from auto-constraints or user defined.

• To delete constraints highlight the erTo delete constraints, highlight the definition and use the delete key.

Show constraints

Constraint definitions




Training Manual

Sketch Constraints . . . Training Manual

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• Sketch entities are also color coded to indicate their current constraint status: gnM

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• Teal: Under-constrained

• Blue: Well Defined

• Black: Fixed

Teal

er• Red: Over-Constrained

• Gray: Inconsistent or Unknown

• Example:p• Initially sketched lines are displayed in teal

color to indicate under-constraint. Note even when dimensioned, these lines are Blueunderconstrained since they are not fixed in space

• Adding 2 more dimensions resolves the sketch




status and all lines are displayed in blue

Training Manual

Sketch Constraints . . . Training Manual

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• By adding too many dimensions and/or constraints the sketch will become over Red gnM

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constrained. Over constrained lines are displayed in red in sketch mode Blue

Red

Red

erRed

• Applying “Fixed” constraints to 2 of the Tealpp y gedges shown here results in the lines being displayed in black

Teal

Black




Training Manual

Sketch Constraints . . .Training Manual

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• The picture below demonstrates an inconsistent situation (lines displayed in gray). Here the arc is dimensioned with a radius of 5 however the vertical gnM

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dimension has been specified as 15. Obviously there is no way to maintain the connection between the 2 horizontal lines and the arc while maintaining these dimensions. er

GGray




Training Manual

Sketch DimensionsTraining Manual

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• DesignModeler contains a complete dimensioning toolbox. gnM

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• In addition to individual dimension assignment, semi-automatic dimensioning is available.

– Semi-automatic cycles through dimension choices erSemi automatic cycles through dimension choices until model is fully constrained or user chooses to exit semi-automatic mode.

– Right mouse button controls skip or end functions.

• The General dimensioning tool allows quick access to all primary dimensions via a right click context menu.context menu.

Right Mouse Click




Training Manual

Sketch Dimensions …Training Manual

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• Move function allows placement of dimension to be modified.

• Animate to view dynamic changes applied to the selected dimension. gnModele

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• Dimensions can be displayed as the dimension value and/or name.

er




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Sketch Dimensions …Training Manual

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• To modify dimensions highlight then change value in details window.

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Highlight dimension

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Enter new value

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Dimension EditingTraining Manual

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• Once highlighted, dimension can also be quickly edited through a RMB menu option, >Edit Name/Value. gnM

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Note: a recent “Generate” might be necessary to see “Value” as well as “Name”




Note: a recent Generate might be necessary to see Value as well as Name

Training Manual

Sketch DisplayTraining Manual

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• Control the display of sketches via RMB options:– Always Show Sketch gnM

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– Hide Sketch• Default behavior, sketch is displayed only when highlighted in the tree.

er




SketchingSketching

Workshop 3-1



Training Manual

Workshop 3-1, Sketching Training Manual

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• Using a simple example, let’s see how we put to use what we’ve seen so far (note RMB = Right Mouse Button). gnM

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• Goal:– Sketch a rectangle 50mm high and 75mm wide with the bottom left corner

at the origin.– Add a 10mm radius circle within the rectangle with the center 20mm from erAdd a 10mm radius circle within the rectangle with the center 20mm from

the left side and 30mm from the bottom.– Place all dimensions where they can be easily viewed.

75mm

20mm

50mm

30mm

20mm




R = 10mm

Training Manual

Workshop 3-1, SketchingTraining Manual

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• >File>New, or Start DesignModeler (Geometry) stand alone mode gnM

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• When prompted, set length unit to millimeters

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• When DM starts, switch to sketch mode using the sketch tab.

N t th “L k At” i ( RMB ti ) t i t th

Icon

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– Note: use the “Look At” icon (or RMB options) to orient the sketch plane in the normal direction.

• Select the “Rectangle” tool and place the cursor at the origin. erorigin.

– Once the “P” (point constraint) symbol shows, click, hold and drag, then release to create the rectangle.

RMBRMB

Click




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• Before continuing, click the “Fit” icon (or RMB menu).• Now choose the “Circle” tool and click, drag and release

Icon

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to create a circle in the approximate location within the rectangle.

er

RMB




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• We’ll now formalize the sketch by adding dimensions.• Select the Dimension toolbox and leave the default selection at gnM

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“General”.– Click on the top line of the rectangle to display the proposed dimension.

er

Pl th di i b th t l b d i d li ki




– Place the dimension above the rectangle by dragging and clicking.

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• Repeat the preceding steps to add the remaining dimensions.• Next modify the details for each dimension to the desired values as gnM

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shown.

75

er

50mm

75mm

20mm

50mm

30mm

D = 20mm




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• To complete our sketch use the “Move” function in the Dimension toolbox to position (drag) the dimensions (like below for example). gnM

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Training Manual


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• Now try animating several dimensions:– Choose the “Animate” function then click

on a dimension in the graphics window. gnModeleer

– Change the dimension display from “Name” to “Value”.




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• As a last check of our stated goals go to the details for sketch 1 and change “Show Constraints?” to “>Yes”

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Show Constraints? to >Yes .

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• Scroll down to the details for Line7 andScroll down to the details for Line7 and note the base point is coincident with the origin - - DM captured our design intent during sketching.

Note: leave DM session running as we will




Note: leave DM session running as we will continue with this geometry later.

Training Manual

Modifying SketchesTraining Manual

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• The Modify toolbox contains a number of functions for editing sketches.

• Some functions are self explanatory (e.g. fillet, chamfer). This section will focus gnModele

p y ( g , )on some of the less obvious functions.

• Remember! - check the status bar at the bottom of the GUI for real-time instructions for each function erinstructions for each function.

Status Bar - Example




Training Manual

Modifying Sketches …Training Manual

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• Split:– RMB Options (choose before selecting edge): gnM

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• Split Edge at Selection (default): splits an edge into two pieces at the selection location (unless the edge is a full circle or ellipse). For a full circle or ellipse, both start and end endpoints are created at the selection location.

• Split Edges at Point: Select a point and all edges which pass through the selected point

er• Split Edges at Point: Select a point, and all edges, which pass through the selected point, are split there.

• Split Edge at All Points: Select an edge and it is split at all points that it passes through and that have a coincident constraint to it.

• Split Edge into n Equal Segments: Set the value n in the edit box and then select the edge which you want to Split.

– Note: up to 100 allowed for n.

“S lit” i f l f k t h t b d ith Ski /L ft– “Split” is useful for sketches to be used with Skin/Loft

– “Split” edges also offer greater control in subsequent meshing and/or boundary condition operations.




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• Drag:– Can drag a point or edge using the cursor. gnM

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– How the model changes depends on what is selected, existing constraints and dimensions.

– Can pre-select multiple entities before issuing the Drag function. er

Drag - Example

Select corner point of rectangle and dragrectangle and drag.




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• Cut/Copy:– Requires the selection of a paste handle (RMB) relative to which the Paste will

be performed

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be performed.

– The paste handle is the location to which the cursor is attached while you are moving the image into position to paste.

RMB paste handle options: er– RMB paste handle options:• Clear Selection

• Use Plane Origin as Paset Handle, the 0.0, 0.0 location of the plane will be used as the paste handlep

– This lets you select a set of items to copy to an internal clipboard, and leaves the originals in the sketch.

– If Cut or Copy is exited without selecting a paste handle, a default will be used.




Copy: RMB options.

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• Paste:– RMB Context Menu:

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RMB Context Menu:• Rotate by +/- r Degrees

• Flip Horizontally / Vertically

• Scale by Factor f or 1/f er

• Paste at Plane Origin

• Change Paste Handle

• End

– Paste lets you take items placed on the clipboard by Cut or Copy and place them i t th t ( ) k t h if itinto the current (or new) sketch, even if it is on a different plane.




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– A Copy/Paste example . . . • After creating a rectangle we wish to copy it, rotate it by 45 degrees

with respect to the origin and scale it by a factor of 0 5

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with respect to the origin and scale it by a factor of 0.5.

er

3. RMB

1. Copy

2. Select edges




Training Manual


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Rotate gnModele

6. RMB Scale er

4. Choose Paste and set options

7. RMB Paste

8. RMB End

• Notes on Copy/Cut/Paste:– After copying, paste can be done multiple times.




y g– Can copy from one sketch and paste to another.– During Paste operation you can change the paste handle.

Training Manual

Modifying Sketches – Quick Cut/Copy/Paste

Training Manual

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• Cut, Copy, and Paste commands are available as RMB options in sketching mode. gnM

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1) Select source edges

2) RMB>Copy

3) Select paste origin3) Select paste origin

4) Paste the edges




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• Replicate: – The Replicate command is equivalent to the Copy command, followed by a gnM

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Paste.

– After one of the End / options is selected, the right mouse button changes to the Paste right mouse button. er

• Move:– The Move command functions the same as the Replicate command with the p

exception that your original selection is moved to a new location instead of being copied.




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• Offset:– The Offset function allows you to create a set of lines and arcs that are offset by an gnM

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equal distance from an existing set of lines and arcs.

– The original set of lines and arcs must be connected in an open or closed profile.

– Preselect or select the edges then choose the right mouse button option “End erselection / Place offset”

– The cursor location is used to determine three things: • Offset distance

• Offset side

• Offset area

– Distance and Side are clear but the “area” is very important:• If portions of your selected curves would collapse out or cross over one another given the

current offset side and distance, the cursor location determines which area of offset curves is kept.

• An example . . .




p

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First we choose all

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First we choose all edges to be offset

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The direction and distance the cursor is moved determinesmoved determines the offset.




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Notice as the offset is dragged

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Notice as the offset is dragged further, the arc will eventually intersect the bottom line.

er

By alternating the cursor location (left and right) we can determine ( g )which offset region will be retained.




Training Manual

Sketch DuplicationTraining Manual

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• Duplicate items from another sketch or plane boundary (all sketches must be in the current plane).

• Allows a plane boundary (perhaps from CAD import) to be gnModele

p y (p p p )duplicated as new sketch entities.

• An Example . . .

er

The new sketch now contains a

sketch line coincident with the top arc in the CAD

model

A face is selected on an With the new plane active, from Sketch

model.




A face is selected on an imported CAD model and a

plane created.

With the new plane active, from Sketch mode > modify, “Duplicate” is selected

and an edge from the plane selected.

Training Manual

Sketch InstanceTraining Manual

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• Sketch Instancing allows copies of sketches to be added in other planes. The copies are persistent, meaning they will update when the source sketch is updated. gnM

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is updated.– Features:

• Edges in a sketch instance are fixed (like a plane boundary) and cannot be moved, edited, or deleted by sketch operations er

• When changes are made in the base sketch its instances will be updated when a Generate is done

• A sketch instance can be used just like normal sketches for creating other features except:Cannot be sed as base sketches for other Instances– Cannot be used as base sketches for other Instances

– Sketch instances are not included in the pull-down list of sketches

Step 1: Choose the destination plane for the instanceplane for the instance.

The source sketch must be in a plane prior to the destination plane (higher in Tree).




Therefore, you can never place a sketch instance onto the XYPlane.

Training Manual

Sketch Instance…Training Manual

DesiggnM

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Step 3: Modify the placement options. The sketch instance may be

ff t t t d doffset, rotated, and scaled.

St 4 Cli k G t t




Step 4: Click Generate to complete the sketch instance.

Training Manual

Sketch Instance…Training Manual

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• Example: Sketch2 is instanced onto Plane4 as Sketch5. Note how the instance appears as fixed edges, similar to plane boundary edges. gnM

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Training Manual

Sketch ProjectionTraining Manual

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• Sketch Projection:– Project 3D geometry onto a plane to create new sketch entities. gnM

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– Select vertices, edges, surfaces or bodies to project.– Cannot be modified using normal sketch tools.– Remain associated to input geometry (if 3D geometry changes, the sketch

projection can update). erprojection can update).




3D Geometry selected for projection

Sketch projected onto existing plane

Training Manual

Geometry InterfacesTraining Manual

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• All Workbench Geometry Interfaces are supported in DesignModeler– Can also import CFX-BladGen 4 1 geometry files (* bgd) into Design Modeler

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– Can also import CFX-BladGen 4.1 geometry files ( .bgd) into Design Modeler• Optionally choose how many ‘Blade Sets’ to import

• DM >File>Import & >File>Attach capability:Can Import/Attach anytime even multiple times per model

er– Can Import/Attach anytime, even multiple times per model

– Can add, subtract, etc. during Import/Attach process

– Base Plane Property for orientation




Training Manual

Attaching to a CAD SessionTraining Manual

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• If a CAD session is currently open, this automatically imports the model into the DesignModeler session gnM

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• File>Attach to Active CAD File

• Maintains bi-directional associativity

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Attaching to a CAD SessionTraining Manual

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• Bidirectional Refresh– Refresh the geometry using parameter values from either the source CAD package gnM

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g y g p p gor

– from the CAD parameters in DesignModeler's Details View.

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Training Manual

Importing CAD FilesTraining Manual

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• File>Import External Geometry File…– The “active” plane controls placement for gnM

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“assembly” modeling (multi-bodies).

– The details pane import type: Add, Cut, Slice, etc… er– Does not maintain associativity

Active Plane

Add



ANSYS, Inc. ProprietaryCut

Add

Training Manual

Positioning ImportsTraining Manual

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• Both Import and Attach have a “Base Plane” property. gnM

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– Specify the plane (orientation) in which the Import or Attach model is referenced…

– When creating a new Import or Attach er

feature, the active plane is chosen as the Base Plane by default

– Users select planes from the tree view or Plane pull-down list prior to import

• Example:– XY chosen for first import

– YZ plane for second import

– Add material option chosen




Training Manual

Import UnitsTraining Manual

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• Most file formats store units information in the file (automatically set on import).

Th SAT fil f t t b t t th t l th it i th i t d t il

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• The SAT file format must be set to the correct length unit via the import details (Prior to Generate)

– DM then converts the model length units into the current unit system er




Training Manual

Exporting a ModelTraining Manual

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• File>Export …

• IGES exporting: gnModele

– When exporting the model to an IGES file, you have the option to export solids or just trimmed surfaces.

– >Tools>Options er




Training Manual

GeometryBody Attributes

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• DM supports two kinds of body attributes through Import and Attach features : gnM

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– Surface body thickness

– Material properties• Material properties are controlled by the Import Material Properties option in the erproperty list for Import and Attach features. If set to >Yes, then any material

properties will be processed with the bodies. Material properties are read-only in DM – they are brought in through the Import and Attach features, but you cannot edit them.

P ti t f d ith th d l h t t Si– Properties are transferred with the model when sent to Sim.




Training Manual

Geometry…Body Attributes

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• Surface body thickness is transferred to DM from CAD systems that support it. gnM

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– Users can modify the thickness of any surface body in DM.

– The thickness will be attached to the surface bodies when the model is sent to Sim. er




3D Geometry3D Geometry

Workshop 3-2



Training Manual

Workshop 3-2, 3D GeometryTraining Manual

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• Goals:– Utilize the model created in Workshop 3-1 and generate 3D

t f th k t h

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geometry from the sketch.– Create a new sketch and extrude it to create a boss on the

original model. – Create another sketch and Imprint a face on the boss to allow for erapplying boundary conditions to an FE model.– Save the model and Exit.

• Start Page (if workshop 3-1 was closed):Ch th ti “O ”– Choose the option “Open”




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Continue with the database created in Workshop 3-1If this is not available open the

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If this is not available open the file called “Workshop 3-1.agdb” and continue with workshop 3-2. 1

3

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1. With the model open choose the “Extrude” icon from the toolbar.2. In the extrusion details

3

change the depth to 10mm.3. Generate the extrusion.

2




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4. Insure that the XYPlane is active and click on the “New Plane” icon 4

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Plane icon. 4

er

5. In the Details of Plane4 set Transform 1 to be “Offset Z” and change the offset “Value” to 50mm. 5

6

6. “Generate” the Plane.5




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7. Click the “Look At” icon to reorient the view.

8 Switch to Sketching mode and

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8. Switch to Sketching mode and choose “Rectangle” from the drawing toolbox (check Auto-Fillet box).

7 9 er

[Sketching] >Draw>Rectangle

9. Draw a rectangle and utilize Auto-Fillet approximately as

7

pp yshown here.

10. Click on the “Dimensions” toolbox.

[Sketching] >Dimension 10

8




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11. Dimension the sketch as shown below. Note: your dimension names may not match those shown. gnM

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1111




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12. From the toolbar choose “Extrude” (do not generate yet!)

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yet!).

An isometric view shows the12

15

erAn isometric view shows the proposed (wireframe) extrude using a surface-normal direction (facing away from the original model).

13. From the Detail window change the direction field from Normal to “Reversed”.

14. Change the Type to “To Next”15. “Generate” the extrusion.

13

14




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The extrude operation creates the boss which is merged with the original geometry.

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Click on >Display Planebutton to turn off planebutto to tu o p a e

+ dimensionsif necessary




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In our FE simulation we wish to add a boundary condition at an arbitrary location on the boss We

1718

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arbitrary location on the boss. We will imprint a face on the boss for that purpose.

er16. Select (Highlight) the top surface of the boss.

17. Click the “New Plane” icon in the toolbar.

18 “G t ” th l18. “Generate” the plane.

16




Training Manual


DesiggnM

odele

19. Click the “Look At” icon from the toolbar.

20. Go to sketch mode and

19

erchoose circle from the draw toolbox.

[Sketching] >Draw>Circle20

21. Draw a circle approximately like the one shown here.

21




Training Manual


Desig

22 Add di i h t

gnModele

22. Add dimensions as shown at right. Note your dimension names may not match those shown here.

[Sketching] >Dimensions>General 22

er[Sketching] >Dimensions>General 22




Training Manual


Desig23. Choose “Extrude” from the

toolbar (do not Generate).

gnModele

toolbar (do not Generate).24. In the details change the

operation to “Imprint Faces”.25. “Generate” the extrusion 25

23 er

24




Training Manual


DesiggnM

odele

Make sure the surface selection filter is active and highlight (select) the circular surface on the boss.(Rotate the Model as Desired) er

Notice we now have a circular area that we can use for localized boundary conditions in our simulationsimulation.

Exit without saving:“File>Exit Workbench”




DM 11 CH03 Sketch

Documents

sketch entities

sketch modechapter

gnmodele sketch mode

new sketch button

d sketch faces areas

d d users

d geometry creation

sketch entity creation