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Named selections from SpaceClaim to Mechanical

    • Martin Štěpánek


      I'm PhD student and ANSYS is a new SW for me. Could I ask for support with an option of ANSYS?

      I have two questions.

      1. While I wanted to validate my topology optimization, I created  "Named Selections" from facet geometry (the result of the topology optimization) in SpaceClaim, but the "Named Selections" were not imported to the " Mechanical". I need the "Named selection" for the specification of boundary conditions.  How can I get the "Named selections" to the "Mechanical"?

          2.  How is it possible to import (show) "points" (Remote points) from "SpaceClaim" to "Mechanical"?


      Thank you for your advice.

      Martin Štěpánek


    • Aniket
      Ansys Employee
      1. Create Groups in SpaceClaim after converting the stl to solid, is that what you are doing?
      2. You can create origins at the points in SpaceClaim. These Origins will translate to coordinate system in Mechanical. Using these coordinate systems, you can create rempte points in Mechanical.


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      • Martin Štěpánek


        No, I created the Groups before converting. That’s the problem because the converting causes the loss of the Groups. Is it right?

        My workflow:
        1. I created the Named Selections.

        2. I used Shrinkwrap to “homogenised” element size. 

        3. I smoothed the geometry.

        4.  Converting to solid. 


    • mjmiddle
      Ansys Employee

      There are some other options to go about this process.

      1. With a facetted geometry, you can select the triangles to place into named selections and proceed directly to Mechanical with the facetted geometry. This works in the latest 2023 R1. While this works, it may be cumbersome to rotate/pan/zoom in Mechanical because the 100,000s or millions or triangle data can be hard on display.
      2. So another option is to right click on the body in the Structure tree and choose "Convert to solid > Merge faces." Then assign named selections, Then transfer to Mechanical. While this makes simple CAD surfaces from flat portions, and reduces the triangle count when proceeding to Mechanical, you still can have a lot of triangles/faces and get a lot of edges.
      3. As Aniket alluded, convert to CAD geometry first by using "skin surface" or other solid tool techniques to create the solid when there are symmetries present.
      4. If you have converted the facetted geometry to CAD geometry, you can make sketch points that lie on the geometry. If the sketch point and solid body are under the same component (or root component), it will embed the point as a vertex into the face. The datum point tool that is in the Design ribbon will not embed, and so will not transfer to Mechanical.
      5. For free floating points, create origins at points as Aniket suggested.
      • Martin Štěpánek

        I tried to use facetted geometry in Mechanical and it works. 

        However, if I want to convert it to solid and I lose the Named Selection, how can I easily select the surfaces from solid geometry to create the Named selections again? In the case of facet geometry, I just double-clicked LB to the required facets and used a setting slider to increase the target area.

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