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Import/create the Design Space including the Non-Design Spaces in MSC Apex Generative Design. For this Pedal the already prepared Design Space and Non-Design Spaces were imported.
The CAD-file includes several solids. The file Pedal_body_1 is used to split the upper surface of the pedal to create the area for the load application point. Therefore, open the Split Surface Tool in the Geometry Edit Tools and select the top left surface as the split surface. Now select all curves that separate the surface as in the picture below.
Open the Design Space Tool in the Optimization Tools to select the imported Geometry as the Design Space. Activate the Symmetric Design Constraint and select the XZ plane to set up the symmetric optimisation.
The other solid of the pedal Pedal_body_1 is no longer needed and can be hidden or even deleted.
Create the material Steel in the Materials editor and assign it to the Design Space. In this case the material behaviour is Isotropic.
The specific values needed are the Young's Modulus (192372 MPa), Poisson ratio (0.3) and Density (7.97e-6 kg/mm3).
The Tension Strength is the maximum allowable stress for the material and is set to 320 MPa.
Step 3: Definition of boundary conditions
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Interfaces have to be created for every functional surface - so every surface where a boundary condition is applied to. With this Tool an offset to the inside with the input “Interface Thickness”(Non“Non-Design Space ) Thickness” and an offset to the outside with the input “Machining Allowance” is created. The Offset Distance is expanding the Interface to the set value to create material on front faces.
One Interface is created on the force application surface. Therefore, an Interface Non-Design Space Thickness of 1 mm and a Machining Allowance of 1 mm is entered. Now select the surface and confirm the selection (MMB).
One Interface is created on the inner surfaces of the fixation. Therefore, an Interface Non-Design Space Thickness of 2 mm and a Machining Allowance of 2 1 mm is entered. Now select the inner surfaces and confirm the selection (MMB). The outer most surface of the Fixation is not selected because is would create material outside of the Design Space.
Step 5: Definition of Events (load cases)
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The legend can be influenced in different ways. You can add and reduce the stress/displacement steps, enlarge different steps and set new minimum and maximum values. The mass of each iteration can be visualized with a diagram.
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You can go back to the model setup by clicking the Exit button in the right bottom corner.The whole MSC Apex Generative Design project with all results can be downloaded here: Coming Soon!
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