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Import/create the Design Space including the Non-Design Spaces in MSC Apex Generative Design. For this Bracket the Design Space was imported.
The CAD-file includes several solids. The desired Design Space, as well as the dummy part for an electric motor and the needed screws to connect the parts. We will use these as Retained Volumes later on in the optimisation.
Open the Design Space Tool in the Optimization Tools to select the imported Geometry as the Design Space.
Create the material Steel, Pa12 PA12 and Aluminium in the Materials editor. Assign PA12 to the Design Space, Aluminium to the Motor Housing and Steel for the Screws.
The specific values needed are the Young's Modulus (192372 MPa), Poisson ratio (0.3) and Density.
The Tension Strength is the maximum allowable stress for the material.
Name | Young’s Modulus | Poisson ratio | Density | Tension strength |
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Steel | 192.000 MPa | 0,3 | 7,97 g/cm³ | 515 MPa |
Aluminium | 72.000 MPa | 0,34 | 2,7 g/cm³ | 200 MPa |
PA12 | 1.700 MPa | 0,39 | 0,9 g/cm³ | 42 MPa |
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Name | Force/Moment/Pressure/Gravity | Direction | Value |
|---|---|---|---|
Force-Moment1 | Moment | My | 30 .000 NmmkNmm |
Force-Moment2 | Force | x | -2 .000 NkN |
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Four constraints are created and atteched attached on the four inner surfaces of the holes at the outer attachement attachment points:
Name | Direction |
|---|---|
Constraint 1 | x, y, z (=0) |
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Another four Interfaces are created on the inner surfaces of the fixations. Therefore, an a Non-Design Space Thickness of 3 mm, an Offset Distance of 3 mm and a Machining Allowance of 1 mm is entered. Now select the inner surfaces and confirm the selection (MMB).
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Furthermore, we create two Interfaces at the bottom of the Design Space, to ensure that the fixations on the different sites are connected and there is a good interface to place the bracket later on on the ground. For this we select the two outer surfaces at the bottom and choose a Non-Design Space Thickness of 5 mm.
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The whole MSC Apex Generative Design project with all results can be downloaded here:
You might also be interested in these tutorials:
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