Ribs

Use the Ribs tool to create and modify simple ribs between two surfaces.

Geometry definition is normally created in CAD systems and imported into the HyperMesh database. CAE modeling is done using the geometry available in HyperMesh. From the CAE analysis results or from optimization of the structures, sometimes it is necessary to add stiffening ribs to the geometry. It is not convenient to use the CAD system to add ribs and modify the dimensions or locations. Using this tool, you can create and modify simple ribs between two surfaces, but not more than two surfaces. Complicated ribs still need to be created in the CAD system and re-imported into HyperMesh.

Figure 1. Triangular Rib Terminology

Figure 2. Quadrilateral Rib Terminology

1. From the Topology ribbon, click the arrow next to the Create tool set name and select Ribs.
2. Choose a rib type.

   
   
   Figure 3. Triangular Shaped Rib

   
   
   Figure 4. Quadrilateral Shaped Rib

3. Define the rib properties.

   Profile Position

   Select the rib position from the profile plane (centered, on right, or on left).

   Rib Start Node

   Select a rib start node on a surface where the rib will start. You can modify this during the preview. This will give the height of the rib.

   Rib End Node

   Select a rib end node on a surface where the rib will end. You can modify this during the preview. This will give the length of the triangular rib or the height at the other end of the quadrilateral rib.

   Reference Node

   Define the location and orientation of the rib. This node is used as reference geometry, with respect to which sides of the rib are constructed. For example, when draft angle is zero, the two side surfaces of the rib are parallel to this plane.

   Height 1 and Height 2

   Specify height 1 and height 2 of the quadrilateral rib. Provides heights at both ends for the quadrilateral rib.

   Height and Length

   Specify the height and length of the triangular rib.

   Width

   Specify the width of the rib.

   Draft Angle

   Specify an angle used for the side face inclination.

4. Click Apply.