Local Resolution Constraint

Use the Local Resolution Constraint command to refine or coarsen surface wrap bodies in selected regions. The Local Resolution Constraint command together with the Contact Prevention Constraint and Auto Refinement Constraint commands allows you to preserve more detail in the surface wrap bodies that are generated by the surface wrapping tool, or remove unnecessary details from them.

Surface wrap body without local resolution	Surface wrap body with local resolution on heat sink and openings

You can specify the region that is affected by the local resolution constraint using one of the following:

• Polygon geometry that you select in the associated surface wrap recipe.

• 2D elements and free faces of 3D elements that are not associated to polygon faces.

• A bounding box for which you specify two diagonal points.

• A bounding sphere for which you specify the center and the radius.

• A selection recipe that contains the geometry or elements.

When you use local resolution on polygon geometry, the constraint affects the region in the proximity of the selected edges, faces, or body surfaces. When you use local resolution on elements, the constraint affects the region in the proximity of the selected element faces. When you define local resolution on a bounding volume, the constraint affects the region inside the volume.

You can also specify the priority level of the local resolution constraint with respect to other constraints when they are in conflict.

The software stores your specification for each local refinement constraint under the Local Resolution Container node in the Simulation Navigator. By default, each local refinement constraint node is numbered, but you can change its name.

To apply a selected local refinement constraint to a surface wrap recipe, drag its local refinement node from the Constraints Container node to the Constraints node that is located under the surface wrap recipe node.

Polygon Geometry
Surface Wrap Recipes
Constraints Container
Local Resolution 1
Local Resolution 2
Surface_Wrap_Recipe1
Constraints
Local Resolution 1

Where do I find it?

Application	Pre/Post
Prerequisite	A FEM or an assembly FEM as the work part
Command Finder	Local Resolution Constraint
Simulation Navigator	Right-click the Constraints Container node→New Local Resolution Constraint

How do I

Create an interior surface wrap body

Create a surface wrap body by surface wrapping all the bodies

Create a contact prevention constraint

Create a local resolution constraint

Create an auto refinement constraint

Edit a local resolution constraint

Apply a selected constraint to a surface wrap recipe

Create a parabolic quadrilateral 2D mesh

Learn more

Surface Wrap Recipe

Updating surface wrap recipes

Contact Prevention Constraint

Auto Refinement Constraint

Look up more details

Setting priorities to constraints

Sizing options for constraints

Surface wrap nodes in the Simulation Navigator

Surface wrap commands in the Simulation Navigator

Quick links

Command reference

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Local Resolution Constraint, Simcenter 3D 2021.1 Series

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