While setting up a model for analysis, you can establish relationships among the volt degrees of freedom of the model by physically modeling the part or a contact condition. However, sometimes there is a need to be able to model distinctive features of a geometry (for example, models that have equipotential surfaces) which cannot be adequately described with the physical part or contact. In this instance, you can create a set of surfaces/edges/vertices which have a coupled degree of freedom by using the Voltage Coupling boundary condition.
Coupling the degrees of freedom of a set of geometric entity constrains the results calculated for one member of the set to be the same for all members of the set.
This page includes the following sections:
Analysis Types |
Dimensional Types |
Geometry Types |
Topology Selection Options |
Applying a Voltage Coupling Boundary Condition |
Details Pane Properties |
Mechanical APDL References and Notes |
Analysis Types
Voltage Coupling is available for the following analysis types:
Dimensional Types
The supported dimensional types for the Voltage Coupling boundary condition include:
3D Simulation. Apply to one or more faces or edges or at least two vertices.
2D Simulation. Apply to one or more edges or at least two vertices.
Geometry Types
The supported geometry types for the Voltage Coupling boundary condition include:
Solid
Surface/Shell
Wire Body/Line Body/Beam
Topology Selection Options
The supported topology selection options for Voltage Coupling include:
Face: Supported for 3D only.
Edge
Vertex
Nodes: Supported for Coupled field analyses only.
Applying a Voltage Coupling Boundary Condition
To apply a Voltage Coupling boundary condition:
On the Environment Context tab, click Conditions>Voltage Coupling. Alternatively, right-click the Environment tree object or in the Geometry window and select Insert>Voltage Coupling.
Define the Scoping Method.
Restrictions
Make sure that you meet the following restrictions when scoping Voltage Coupling.
You cannot specify more than one Voltage Coupling on the same geometric entity, such as two edges sharing a common vertex or two faces sharing a common edge.
Voltage Coupling should not be applied to a geometric entity that also has a constraint applied to it.
Details Pane Properties
The selections available in the Details pane are described below.
Category | Property/Options/Description |
---|---|
Scope |
Scoping Method: Options include:
|
Definition |
DOF Selection: This is a read-only field displaying the DOF selection type - . Suppressed: Include ( - default) or exclude ( ) the boundary condition. |
Mechanical APDL References and Notes
Coupling is achieved through the use of the CE command.