![](../icons_C2/common/areference.gif) |
Surface Sliders
are surface constraint
joins, which allow points of a surface to
slide
along a coinciding rigid surface. |
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![](images/aImageVirtualSurfSlider.gif)
means
that there is no translation degree of freedom left in that direction.
Surface Sliders are
applied to surface geometries. Surface Slider objects belong to Restraint objects sets.
Make sure you fixed all the
global degrees of freedom of your assembly, otherwise a global singularity
will be detected at the time of the Static Computation (such a model is
unsolvable). To allow you to easily correct the model (Static Analysis
Cases only), the singular displacement of the assembly will be simulated
and visualized after computation.
At each point of the deformable surface, the program automatically
generates a constraint which fixes the translation degree of freedom
in the direction normal to the surface at that point.
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Surface Slider can be applied to the following types of
Supports:
![](../icons_C2/common/iconblck.gif)
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This task shows how to create a
Surface Slider on a surface.
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You can use the sample15.CATAnalysis
document from the samples directory for this task: a Finite Element Model containing a
Static or Frequency Analysis Case and computed corresponding Solution. Before You Begin:
Go to View -> Render Style -> Customize View and make
sure the Shading, Outlines and Materials options are active in the Custom View Modes
dialog box. |
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1. Click the Surface Slider icon
.
The Surface Slider dialog box is displayed.
![](images/aPanelRestraintSurfaceSlider.gif)
2. You can change the identifier of the
Surface Slider by editing the Name field, if needed.
3. Select a geometry support (a face).
You can select several supports in sequence, to apply the Surface
Slider simultaneously to all. Symbols representing the Surface Slider are displayed on the
support.
4. Click OK in the Surface Slider dialog box to create the
Surface Slider.
A Surface Slider object appears in the specification tree under the active
Restraints objects set.
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![](../icons_C2/common/amethod.gif) |
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![ainfo.gif (980 bytes)](../icons_C2/common/awarning.gif) |
Make sure the computation is finished before
starting any of the following operations. |
![ainfo.gif (980 bytes)](../icons_C2/common/tips.gif)
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Products
Available in
Analysis Workbench
The ELFINI Structural Analysis
product offers the following additional features with a right mouse click
(key 3):
![](_themes/v5r5/ul1.gif) | on a Surface Slider object:
![](_themes/v5r5/ul2.gif) | Restraint visualization on mesh: the translation of your
Surface Slider object specifications into solver specifications can be
visualized symbolically at the impacted mesh nodes, provided the mesh
has been previously generated via a Compute action. |
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![](_themes/v5r5/ul1.gif) |
on a Restraints objects set:
![](_themes/v5r5/ul2.gif) | Generate Image: generates an image of the computed Restraint objects
(along with translating all user-defined Restraints specs into explicit solver
commands on mesh entities), by
generating symbols for the nodal restraints imposed by the Restraints
objects set. The image can be edited to include part or all of the
options available. |
![](_themes/v5r5/ul2.gif) | Report: the partial status and results of intermediate
pre-processor computations are reported in HTML format. It represents
a subset of the global Report capability and generates a partial
report of the Restraints objects set Computation. |
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See Creating Clamps for more details.
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