Links, Images, Project
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Goal of this tutorial
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Training:
Relevant data for this tutorial:
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Step 1: Start MSC Apex Generative Design 2020
The program starts and you can directly create your optimisation model
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Step 2: Model generation
You can either create the geometry directly in MSC Apex Generative Design or import already existing files. You can import .xb, .xt, .step, and .sldprt files into the program.
Import/create the Design Space including the Non-Design Spacesin MSC Apex Generative Design 2020 as one solid. For this Bookshelf the already prepared Design Space was imported.
Open the Optimization Tools to select the imported Geometry as the Design Space
Non-Design Spaceshave to be selected using the optimisation Tools. In this case the top plate is created as a Non-Design Spaces with an offset of 1 mm and the three screw holes are being used with an offset of 3 mm for each.
Next the Machining Allowances are for the functional surfaces are being defined with the Machining Allowance Tool. For this Geometry a value of 1 mm was chosen. How much Material Allowance is necessary, depends on the dimensions of the part and the manufacturing process/machine.
The top plate can directly be selected. For the screw holes all functional surfaces have to be selected at once. Therefore, the flash is deactivated and all surfaces are selected and confirmed as in the picture below:
For the next steps, the Non-Design Spaces as well as the Machining Allowances are hidden.
Create the material in the Materials editor and assign it to the Design Space
The specific values needed are the Young's Modulus (192372 MPa), Poisson ratio (0.3) and Density (7.97e-6 kg/mm3)
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Step 3: Definition of boundary conditions
Go to the Loads & Boundary Condition Tool to enter the loads and fixations. Displacements, Forces, Moments, Gravity and Pressure Loads can be applied using different selection options.
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Name | Direction |
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Constraint 1 | x, y, z (=0) |
Constraint 2 | x, y, z (=0) |
Constraint 3 | x, y, z (=0) |
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Step 4: Definition of load cases
The next steps are defined in the Studies area.
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Active in Event1: Force-Moment 1, Constraint 1, Constraint 2 and Constraint 3
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Step 5: Definition of optimisation parameters
The optimisation parameters are selected in the Studies Area as well.
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Don’t forget to save the project!
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Step 6: Starting the optimisation and visualizing the results
If all data is correct, the optimisation can be started and tracked in the Post Processing. The Analysis Readiness function checks if all information is provided and the optimisation can start.
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The optimisation is finished after 64 iterations (Shape Quality: Balanced).
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Generative Design
You can always change the Strut Density, Stress Goal and Complexityto influence the results and try out different options
The Complexitycan be increased for a higher resolution and more detailed result (increased calculation time!)
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Strut Density: Dense
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Strut Density: Sparse
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Step 7: Visualization of Stresses, Displacements & Mass
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.
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The whole MSC Apex Generative Design project with all results can be downloaded here: