How to make an interference fit at Design Modeler?

Member

Hello everyone, I would like to simulate a 2D plane strain model of a interference fit (as showed in the picture below).

The issue comes when I try to make Dd ( 2a*(1+delta) ) equal to D ( 2a ) or greater. Doing so makes the two surfaces become a unique surface, as showed below.

Best regards.

• Member

After you sketch the pin, click on the plane and insert a New Sketch.

• Member

Sorry Peter, I tried and didn't work out. Could you add more pictures about that method? Maybe I'm not doing something or doing it wrong.

• Forum Coordinator

First select XY Plane

Create a sketch for D1. Here you will see sketch1 inserted under XY Plane.

Then again select XY Plane. Click on New Sketch as shown by Peter. Here you will see sketch2 inserted under XY plane. Select this sketch2. Now create sketch for D2.

Regards,

Keyur

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• Member

Thanks to @kkanade for expanding on the method. I will add even more detail to his steps.

sketch2 has two closed shapes: a circle a bit smaller than the circle in sketch1 and a square.

• Member

Ok, this is exactly what I did step by step:

1: Creation of Sketch1 in XYPlane

2: Drawing a circle of D1 = 30 mm

3: Surface from Sketch using Sketch1 as base object

4: Creation of a new sketch into XYPlane

5: Drawing a circle (on Sketch2) of D2 = 29, 99 mm

6: Drawing a square (in Sketch2 again) of edge A = 40 mm

7: Surface from sketch using Sketch2 as a base object:

As you can see, I get two surfaces but 1 part/body. I want to get two separate parts/bodies.

• Forum Coordinator

Create separate sketch3 for rectangular sketch.

• Member

I did a similar sketch

It will be added as another surface by changing [Details] to [Operation] to [Freeze].

• Member

Thank you so much to all of you for helping me! Add Frozen option did the job!