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Step 2: Geometry
In the Crank cell, right click on Geometry, and click New Geometry...
At this point, a new window, ANSYS Design Modeler will be opened. You will be asked to select desired length unit. Select Inch unit and click OK.
Creating a Sketch
Like any other common CAD modeling practice, we start by creating a sketch.
Start by creating a sketch on the XYPlane. Under Tree Outline, select XYPlane, then click on Sketching next to Modeling tab. This will bring up the Sketching Toolboxes.
Note: In sketching mode, you there is Undo features that you can use if you make any mistake.
On the right, there is a Graphic window. At the lower right hand corner of the Graphic window, click on the +Z axis to have a normal look of the XY Plane.
Under Sketching Toolboxes, click on Draw tab. We will first create the outline of the crank. Select Rectangle and draw in the Graphics window as shown below. Make sure that the rectangle is coincident on the x-axis (Letter C visible when you start the rectangle drawing).
Note: You do not have to worry about geometry for now, we can dimension them properly in the later step. Next draw the semi-circular arc at both end of rectangle. Under Draw Tab, select Arc by Center and execute the drawing as shown.
Draw the crank circular hole next. Under Draw tab, click on Circle and execute the drawing as shown.
Next, we will dimension the current drawing. Under Sketching Toolboxes, select Dimensions tab. You will see a list of dimensioning options. We will use the default General option. Execute the geometry dimensioning as shown below.
Input value for D2, H3, L1 respectively under Details View tab.
D2 = 0.5 in
H3 = 3.3465 in
L1 = 1.299 in
Note: Your dimension naming might not be the same as the one shown here. It is fine. Just make sure your value correspond to correct geometry.
Next, we need to make sure that the sketch is symmetry on both side. Under Sketching Toolboxes, select Constraints tab. Select Midpoint and constraint the geometry in the Graphic window as shown below.
Next, we will make sure that the both circular hole is of same dimension. Under Constraints tab, select Equal Radius. Execute constraint in the Graphic window as shown below.
We will next trim off the unwanted edge. Under Modify Tab, select Trim. Execute the trimming in Graphic window as shown below.
At this point, we have the outline of the crank done. We need to add the