Uploaded on
23 Nov 2022
Skill-Lync
The geometry connected to a physical part is represented by a surface. A surface is a two-dimensional geometric object that can be utilised in automatic mesh generation. A surface always has one or more faces. Each face comprises a mathematical surface and edges. The edges help determine how much trimming would be needed for the surface.
Often, any surface that has several faces is considered a single surface entity. Therefore any operation performed on the surface will affect all its faces. Edges define the perimeter of a surface. Edges can be different types like free, shared, suppressed and non-manifold
In this article, we are going to explore feature and comparison options that help improve the edges and faces of a geometrical model in Hypermesh. Instructions and step-by-step explanations are provided with examples for better understanding.
This option will be used, when we want to edit any particular portion on the surface, after meshing the model. Basically, it will create a cut on the surface, based on the perimeter of the 2D mesh Elements.
1) Click Geom→ Lines→ Feature (ref Fig1).
2) Now select the elements, by which its perimeter will turn into a feature line, then click on the create button.
3. Disable the Mesh in the component and check the Feature lines as shown below:
4) Now we can trim the surface with the feature lines, by using the trim with lines option under the surface edit command (Shift + F9 or Geom→ surface edit).
Click on the trim button to trim the surface with the selected feature line.
5) Feature lines can be deleted by using delete→ lines→ delete entity, after trimming the surface.
6) Now the trimmed surface (ref Fig2) can be edited as per our requirement.
Reason for ticking the checkboxes in the Feature panel (ref Fig1):
If the X value(Normal angle) is greater than the Y value(Specified Feature angle), a detailed feature line will be created as shown below:
Note: The above shown Detailed feature lines are created with a Feature angle of 10 degrees. Hence the X value(Normal angle) will be greater than the Y value(Feature angle)
Author
Navin Baskar
Author
Skill-Lync
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