Training:
Relevant data for this tutorial:
| View file | ||
|---|---|---|
|
Step 1: Reimport your already optimised geometry
The optimised geometry can be reimported into a new project or into the already existing optimisation project. For this Tutorial the project of the Bridge is used.
...
Documents → Apex Generative Design Workspace→ Bridge_NURBS → Meshless Generative Design Scenario 1 Step 1.v1 → buildSpace_MC_MainData_Loop_64.stl
...
After importing the non-intersected STL-file the optimisation result is displayed as a Faceted Solid inside the model tree.
...
Step 2: Mesh to CAD
With the Facet Body to NURBS Geometry Tool under the Geometry Edit Tools the STL-file can be transitioned to a CAD-file. Therefore, the Automatic Size Calculation and the Partition Preview can be kept activatedstay active. With the middle mouse button (MMB) the operation can be executed.
...
If the partition looks satisfying the NURBS patch creation can be started by confirming with the middle mouse button (MMB). If finer, smaller patches are desired the NURBS Face size can be varied manually. Depending on the Geometry this step can take some time.
...
After finishing When the transition is finished, the status bar in the bottom left displays “NURBS is created based on partitioned Facet Body” and a new solid shows up in the model tree.
From time to time depending on the geometry some NURBS patches can might fail. These will be displayed in the status bar as well. If this happens the geometry can be repaired manually. How this works is described here.
Step 3: Geometry Cleanup
We recommend to use the Geometry Cleanup Tools after the NURBS CAD-Geometry is created.
...
Step 4: Creation of functional surfaces and sharp edges with Boolean operations
To create the final CAD-Geometry all functional surfaces and sharp edges have to be created with boolean operations. The best way for this is a boolean intersection between the retransitioned optimisation result and the Design space of the optimisation. A copy of the Design space is desired needed for the following operation.
...
The result is an intersected CAD-Geometry with all functional sharp edges and surfaces. At this point it is also possible to create machining allowances on functional surfaces which are post processed by milling or other manufacturing post processes.
The finished Geometry can be used in any CAD software and for all further steps like a FE-Reanalysis with MSC Nastran.
...