Training:
Relevant data for this tutorial:
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The program starts and you can directly create your optimization model
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Step 2: Model generation
You can either create the geometry directly in Apex GenDes Generative Design or import already existing files. You can import .xb, .step, and .sldprt files into the program.
Import/create the design space including the nondesign spaces in MSC Apex Generativ Design 2020 as one solid. For this Bookshelf the already prepared design space was imported.
Create the material in the Materials editor and assign a Material assignitl to the design space
The specific values needed are the Young's Modulus (210e3 MPa), poisson ratio (0.3) and density (7.8e-6 kg/mm^3mm3)
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Nondesign spaces have to be selected using the Optimization Tools. In this case the three screw holes are beeing used and a nondesign space with an offset of 2 mm is created for each.
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Step 3: Definition of boundary conditions
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Three constraints are created and attached on the Non Design Regionsnondesign spaces:
Name | Direction |
|---|---|
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
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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 optimization parameters
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Select the Strut Density: Medium (Select the Thickness: Normal)
Select the Shape Quality: Balanced (Select the Calculation Type: Optimizing)
Enter the Maximum Stress: 2 MPa
Don’t forget to save the project!
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Step 6: Starting the optimization and visualizing the results
If all data are is correct, the optimization can be started and tracked in the Post Processing. The Analysis Readiness function checks if all information are provided and the optimization can start.
All result iterations are displayed as soon as they are available. Furtheremore you are able to stop the optimization in this selection area. A However, a restart however is not directly possible.
The optimization is finished after 64 iterations (Shape Quality: Balanced (Calculation type: Optimzing)).
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Generative Design
You can always change the Strut Density (Design Type), Maximum Stress and Complexity (SolverMaxMemory) to influence the results and try out different options
The Complexity (SolverMaxMemory) can be increased for a higher resolution (increased calculation time!)
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The Strut Density (Design Type) influences the strucures which are formed during optimization
The optimizations below show the influence of the Strut Density (Design Type) when nothing else is changed.
Strut Density: Medium (Design Type: Normal)
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Strut Density: Dense (Design Type: Filigree)
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Strut Density: Sparse (Design Type: Massive) → one Fixation was sorted out by the optimization algorithm because it was not necessary to reach the goal of the optimization!
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Step 7: Visualization of Stresses
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The legend can be influenced in different ways. You can add and reduce the steps, enlargen different steps and set new minimum and maximum values.
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& Displacements
The legend can be influenced in different ways. You can add and reduce the stress/displacement steps, enlargen different steps and set new minimum and maximum values.
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You might also be interested in these tutorials:
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