The Addendum panel, which can be accessed via the Geometry menu, allows you to create an addendum for a part using either of the two available approaches; feasibility type or advanced parametric.
User Profiles:
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Incremental_RADIOSS
Incremental_LS-DYNA
RADIOSS One Step
Die Module
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Feasibility Type
There are two choices within the feasibility type approach. Here, addendums can be created using pre-defined lines or a constant section.
Pre-defined lines (surface generation options):
Option
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Description
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three loops
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Generates an addendum surface between the part trim line, punch opening line, and flange line, which are all assumed to be closed.
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two loops
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Generates an addendum surface between any two closed lines.
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line line
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Generates an addendum surface between two groups of lines.
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single loop
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Generates an addendum surface inside a single closed line.
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Constant S-section:
Generates an addendum with a constant cross-section using a prescribed part trim line (TL), a reference binder (Binder), a set of geometric parameters, and surface generation options.
Advanced Parametric
The advanced parametric approach consists of two options for addendum creation; single section and multiple sections.
Option
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Description
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Single section
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Generates an addendum with a single editable cross-section using a prescribed part trim line (TL), a reference binder, a set of geometric parameters, and surface generation options.
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Multiple sections
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Generates an addendum with multiple editable cross-sections using a prescribed part trim line (TL), a reference binder, a set of geometric parameters, and surface generation options.
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Notes:
| • | The Rib Editor, under the edit rib function, allows you to conveniently design the parametric ribs through a specialized GUI. This GUI makes all of the parameters that constitute a rib available for review and interactive modification. |
| • | Edit buttons are also available for modifying the binder and/or the punch opening line while working on the addendum sections. |
| • | If you have multiple binders in your model, you should mask all but the one binder that you intend to use in the creation of the addendum. Similarly, ribs that will not be used for the creation of an addendum should be masked before opening the Addendum panel. |
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Parameters
The following parameters are available via the purple parameters button for constant S-section feasibility type addendums and advanced parametric addendums:
Option
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Description
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constrain plus to part
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Enforces tangency between the part and the beginning of the addendum. The plus is the first section in the addendum, and is basically an extension of the part along a line.
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enable fixed points
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When enabled, HyperForm searches the existing mesh, finds nodes within tolerance to the newly generated surface edges, and adds them to the new surfaces as fixed points. When a mesh is generated on the new surfaces, the mesh passes through these fixed points.
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split into small face
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When enabled, HyperForm divides the generated surface into smaller chunks in order to simplify their definition while reading and manipulating them in other CAD systems.
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automatically add rib at sharp corner
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When enabled, HyperForm looks for corners along the trim line and creates a rib at each corner.
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global smoothing
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Enforces tangency between adjacent addendum surfaces.
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half symmetric model
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Allows you to create the addendum on a half symmetric part. The addendum is created only for half of the model, with tangency enforced at the plane of symmetry. The symmetry plane is defined using either the global axis, a vector, or three points under the global parameters for the ribs.
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| Note" | Undercut flanges must be removed or adjusted before creating an addendum or rib. |
How do I…
| 1. | Select the pre-defined lines subpanel. |
If creating an addendum surface between the part trim line, punch open line, and flange line:
| - | Select the three loops option. |
| - | While the collector after the 1st loop is highlighted, pick the lines that form the first loop. |
| - | While the collector after the 2nd loop is highlighted, pick the lines that form the second loop. |
| - | While the collector after the 3rd loop is highlighted, pick the lines that form the third loop. |
If creating an addendum surface between two closed lines:
| - | Select the two loops option. |
| - | While the collector after the 1st loop is highlighted, pick the lines that form the first loop. |
| - | While the collector after the 2nd loop is highlighted, pick the lines that form the second loop. |
If creating an addendum surface between two open lines:
| - | Select the line-line option. |
| - | While the upper lines collector is active, pick the segments that form the first line. |
| - | While the lower lines collector is active, pick the segments that form the second line. |
If creating an addendum surface using a closed loop:
| - | Select the single loop option. |
| - | Pick the lines that form the loop. |
| 2. | Activate enable fixed point to add fixed points to the new surfaces. |
When this option is active, HyperForm searches the existing mesh, finds the nodes near enough to the newly generated surface edges, and adds them to the new surfaces as fixed points. When a mesh is generated on the new surfaces, the mesh passes through these fixed points within tolerance.
| 3. | Click edit rib and make desired changes to the ribs. See instructions on how to edit a rib between pre-defined lines. |
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| 1. | Select the pre-defined line subpanel and select the desired lines for addendum creation. |
The edit rib panel is displayed.
If adding ribs:
| - | Select the add subpanel. |
| - | Pick the location where you want to create rib nodes. |
If removing rib nodes:
| - | Select the remove subpanel. |
| - | Pick the ribs you want to remove. |
If editing an individual rib:
| - | Pick an option from: by points or relocate end. |
| - | Pick the working rib and the control point. |
If casting ribs:
| - | Choose the ribs that you want to take the shape of the model rib (candidate ribs). |
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| 1. | Select the constant s-section subpanel. |
| 2. | Under TL, pick the trim line (TL) of the part. |
| 3. | Under binder, pick the binder surface of a reference binder. |
| 4. | Click edit and make the desired changes to the binder surface. Please see instruction on how to edit the binder. |
| 6. | Click parameter to make desirable changes to the constant section global parameters. Please see instruction on how to change global parameters. |
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| 1. | Select the single section subpanel (listed under advanced parametric). |
| 2. | Under TL, pick the trim line (TL) of the part. |
| 3. | Under binder, pick the binder surface of a reference binder. |
| 4. | Click edit and make desired changes to the binder surface. Please see instruction on how to edit the binder. |
| 5. | Click parameter to make desired changes to the single section global params. Please see instruction on how to change global parameters. |
| 6. | Click rib editor and make the desired changes to the rib. See RibEditor for more information. |
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| 1. | Select the multiple sections subpanel (listed under advanced parametric). |
| 2. | Under TL, pick the trim line (TL) of the part. |
| 3. | Under binder, pick the binder surface of a reference binder. |
| 4. | Click edit and make desired changes to the binder surface. Please see instruction on how to edit the binder. |
| 5. | Under POL, pick either w POL (Punch Open Line) or w/o POL. |
Note that in most cases a pre-defined POL may not be available or necessary.
If (w) POL is picked, pick the line, click edit and make the desired changes to the POL on binder if necessary. See instructions about how to edit the POL.
| 6. | Click parameter to make desired changes to the multiple section global parameters. Please see instruction on how to change global parameters. |
| 7. | Click edit rib and make desired changes to the ribs. See To edit a parametric rib for more information. |
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| 1. | Select the multiple sections subpanel (listed under advanced parametric) and select the desired lines for addendum creation. |
| 3. | The Edit Rib panel is displayed. |
| - | Pick the locations where you want to create rib nodes. |
| - | Select the remove subpanel. |
| - | Pick the ribs you want to remove. |
| 6. | Edit an individual rib: |
Toggle to choose either the edit params or relocate end option.
| - | To edit the parameters, select the line corresponding to the rib and click rib editor. (See RibEditor for more information). |
| - | To relocate the end of a rib, select the line corresponding to the rib followed by the node where the end needs to be relocated. Click update. |
| - | Choose the ribs that you want to take the shape of the model rib (candidate ribs). |
| - | Choose a rib to be evaluated. |
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When a user accesses the edit POL panel, HyperMesh automatically creates handles at all critical places, depending on the changes in angle and curvature direction. More handles can be added by clicking in the graphics area. To move handles, you must pick the handle to be moved and click in the desired graphics area.
| 1. | Select the multiple sections subpanel. |
| 2. | In the POL section, select w POL. |
| 4. | Click edit to add, remove, or move the handle of the POL. |
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This can be applied to constant s-section and single or multiple sections.
| 1. | After picking the desired subpanel, click parameter. |
Here, the global parameters for addendum can be changed for plus, wall angle, or entry radius.
| 2. | Click and/or uncheck the following parameters if needed: constrain to part, enable fixed points, split into small face, automatically add rib at sharp corner, and global smoothing. |
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See also
RibEditor
Alphabetical List of Panels
