Creating Named Selections of Geometries to Deform

The following page helps you understand the importance of the Named Selections in the optimization workflow with deformed geometries applied in a Speos optical system, and how to create them.

Thanks to Mechanical, you can apply warp to deform geometries. These geometries can then be used as inputs of Speos features in an optical simulation. In order to automatically apply the deformed geometries to the Speos features, you need to create Named Selections of the geometries.

Indeed, if a Speos feature has a geometry (body or surface/face) as input, and that geometry will be deformed, the only way for the Speos feature to use the deformed geometry as input, is to create a Named Selection of the geometry to be deformed.

Important: A Face cannot be deformed individually. A face will be deformed due to the deformation of the body it belongs to. In Mechanical you will specify the deformation of the entire body, and Speos will retrieve the entire body deformed, and so the face deformed. What is important to understand here is, the named selection creation is necessary for the geometries used as input of speos feature. In the following example, the body will be deformed because we want the face to be deformed. But the body is not used as input of a speos feature, so it does not require a named selection even if Speos will retrieve the deformed body.

Let’s take the following example: in an optical system, you have a face from a body that is used as input of a Face Optical Properties Material, a Local Meshing, and a Surface Source.

  1. In Speos, create a Named Selection containing this specific face.

    For more information on Named Selections, refer to the Grouping section of the Useful Commands and Design Tools page.

    Important: If you need to add more geometries to a named selection, make sure to avoid including geometries that should not be deformed in the Named Selections.
  2. In each speos feature definition where the face is used as input geometry, replace the face by the named selection containing the face.
  3. Define a adequate Local Meshing of the face.
    Important: The quality or fineness of the meshing provided to mechanical or as an output from mechanical has an impact on the output of the deformation. A coarse meshing can result in bad geometry being created from the warping algorithm.


Now, you can create the Workbench optimization workflow with the Speos and Static Structural systems.